diff --git a/crypto/BUILD.gn b/crypto/BUILD.gn
new file mode 100644
index 0000000..43e20a5
--- /dev/null
+++ b/crypto/BUILD.gn
@@ -0,0 +1,304 @@
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/crypto.gni")
+
+component("crypto") {
+  output_name = "crcrypto"  # Avoid colliding with OpenSSL's libcrypto.
+  sources = [
+    "apple_keychain.h",
+    "apple_keychain_ios.mm",
+    "apple_keychain_mac.mm",
+    "capi_util.cc",
+    "capi_util.h",
+    "crypto_export.h",
+    "cssm_init.cc",
+    "cssm_init.h",
+    "curve25519.cc",
+    "curve25519-donna.c",
+    "curve25519.h",
+    "ec_private_key.h",
+    "ec_private_key_nss.cc",
+    "ec_private_key_openssl.cc",
+    "ec_signature_creator.cc",
+    "ec_signature_creator.h",
+    "ec_signature_creator_impl.h",
+    "ec_signature_creator_nss.cc",
+    "ec_signature_creator_openssl.cc",
+    "encryptor.cc",
+    "encryptor.h",
+    "encryptor_nss.cc",
+    "encryptor_openssl.cc",
+    "ghash.cc",
+    "ghash.h",
+    "hkdf.cc",
+    "hkdf.h",
+    "hmac.cc",
+    "hmac.h",
+    "hmac_nss.cc",
+    "hmac_openssl.cc",
+    "mac_security_services_lock.cc",
+    "mac_security_services_lock.h",
+    # TODO(brettw) these mocks should be moved to a test_support_crypto target
+    # if possible.
+    "mock_apple_keychain.cc",
+    "mock_apple_keychain.h",
+    "mock_apple_keychain_ios.cc",
+    "mock_apple_keychain_mac.cc",
+    "nss_util.cc",
+    "nss_util.h",
+    "nss_util_internal.h",
+    "openssl_util.cc",
+    "openssl_util.h",
+    "p224.cc",
+    "p224.h",
+    "p224_spake.cc",
+    "p224_spake.h",
+    "random.cc",
+    "random.h",
+    "rsa_private_key.cc",
+    "rsa_private_key.h",
+    "rsa_private_key_nss.cc",
+    "rsa_private_key_openssl.cc",
+    "scoped_capi_types.h",
+    "scoped_nss_types.h",
+    "secure_hash_default.cc",
+    "secure_hash.h",
+    "secure_hash_openssl.cc",
+    "secure_util.cc",
+    "secure_util.h",
+    "sha2.cc",
+    "sha2.h",
+    "signature_creator.h",
+    "signature_creator_nss.cc",
+    "signature_creator_openssl.cc",
+    "signature_verifier.h",
+    "signature_verifier_nss.cc",
+    "signature_verifier_openssl.cc",
+    "symmetric_key.h",
+    "symmetric_key_nss.cc",
+    "symmetric_key_openssl.cc",
+    "third_party/nss/chromium-blapi.h",
+    "third_party/nss/chromium-blapit.h",
+    "third_party/nss/chromium-nss.h",
+    "third_party/nss/chromium-sha256.h",
+    "third_party/nss/pk11akey.cc",
+    "third_party/nss/rsawrapr.c",
+    "third_party/nss/secsign.cc",
+    "third_party/nss/sha512.cc",
+  ]
+
+  deps = [
+    ":platform",
+    "//base",
+    "//base/third_party/dynamic_annotations",
+  ]
+
+  if (!is_mac && !is_ios) {
+    sources -= [
+      "apple_keychain.h",
+      "mock_apple_keychain.cc",
+      "mock_apple_keychain.h",
+    ]
+  }
+
+  if (!is_mac) {
+    sources -= [
+      "cssm_init.cc",
+      "cssm_init.h",
+      "mac_security_services_lock.cc",
+      "mac_security_services_lock.h",
+    ]
+  }
+  if (!is_win) {
+    sources -= [
+      "capi_util.cc",
+      "capi_util.h",
+    ]
+  }
+
+  if (is_android) {
+    deps += [ "//third_party/android_tools:cpu_features" ]
+  }
+
+  if (use_openssl) {
+    # Remove NSS files when using OpenSSL
+    sources -= [
+      "ec_private_key_nss.cc",
+      "ec_signature_creator_nss.cc",
+      "encryptor_nss.cc",
+      "hmac_nss.cc",
+      "nss_util.cc",
+      "nss_util.h",
+      "nss_util_internal.h",
+      "rsa_private_key_nss.cc",
+      "secure_hash_default.cc",
+      "signature_creator_nss.cc",
+      "signature_verifier_nss.cc",
+      "symmetric_key_nss.cc",
+      "third_party/nss/chromium-blapi.h",
+      "third_party/nss/chromium-blapit.h",
+      "third_party/nss/chromium-nss.h",
+      "third_party/nss/pk11akey.cc",
+      "third_party/nss/rsawrapr.c",
+      "third_party/nss/secsign.cc",
+    ]
+  } else {
+    # Remove OpenSSL when using NSS.
+    sources -= [
+      "ec_private_key_openssl.cc",
+      "ec_signature_creator_openssl.cc",
+      "encryptor_openssl.cc",
+      "hmac_openssl.cc",
+      "openssl_util.cc",
+      "openssl_util.h",
+      "rsa_private_key_openssl.cc",
+      "secure_hash_openssl.cc",
+      "signature_creator_openssl.cc",
+      "signature_verifier_openssl.cc",
+      "symmetric_key_openssl.cc",
+    ]
+  }
+
+  defines = [ "CRYPTO_IMPLEMENTATION" ]
+}
+
+if (is_win) {
+  # A minimal crypto subset for hmac-related stuff that small standalone
+  # targets can use to reduce code size on Windows. This does not depend on
+  # OpenSSL/NSS but will use Windows APIs for that functionality.
+  source_set("crypto_minimal_win") {
+    sources = [
+      "crypto_export.h",
+      "hmac.cc",
+      "hmac.h",
+      "hmac_win.cc",
+      "scoped_capi_types.h",
+      "scoped_nss_types.h",
+      "secure_util.cc",
+      "secure_util.h",
+      "symmetric_key.h",
+      "symmetric_key_win.cc",
+      "third_party/nss/chromium-blapi.h",
+      "third_party/nss/chromium-sha256.h",
+      "third_party/nss/sha512.cc",
+    ]
+
+    deps = [
+      "//base",
+      "//base/third_party/dynamic_annotations",
+    ]
+
+    defines = [ "CRYPTO_IMPLEMENTATION" ]
+  }
+}
+
+test("crypto_unittests") {
+  sources = [
+    # Tests.
+    "curve25519_unittest.cc",
+    "ec_private_key_unittest.cc",
+    "ec_signature_creator_unittest.cc",
+    "encryptor_unittest.cc",
+    "ghash_unittest.cc",
+    "hkdf_unittest.cc",
+    "hmac_unittest.cc",
+    "nss_util_unittest.cc",
+    "p224_unittest.cc",
+    "p224_spake_unittest.cc",
+    "random_unittest.cc",
+    "rsa_private_key_unittest.cc",
+    "rsa_private_key_nss_unittest.cc",
+    "secure_hash_unittest.cc",
+    "sha2_unittest.cc",
+    "signature_creator_unittest.cc",
+    "signature_verifier_unittest.cc",
+    "symmetric_key_unittest.cc",
+  ]
+
+  if (use_openssl || !is_linux) {
+    sources -= [
+      "rsa_private_key_nss_unittest.cc",
+    ]
+  }
+
+  if (use_openssl) {
+    sources -= [ "nss_util_unittest.cc" ]
+  }
+
+  deps = [
+    ":crypto",
+    ":platform",
+    ":test_support",
+    "//base",
+    "//base/test:run_all_unittests",
+    "//base/test:test_support",
+    "//testing/gmock",
+    "//testing/gtest",
+  ]
+}
+
+source_set("test_support") {
+  sources = [
+    "scoped_test_nss_db.cc",
+    "scoped_test_nss_db.h",
+    "scoped_test_nss_chromeos_user.cc",
+    "scoped_test_nss_chromeos_user.h",
+    "scoped_test_system_nss_key_slot.cc",
+    "scoped_test_system_nss_key_slot.h",
+  ]
+  deps = [
+    ":crypto",
+    ":platform",
+    "//base",
+  ]
+
+  if (!use_nss_certs) {
+    sources -= [
+      "scoped_test_nss_db.cc",
+      "scoped_test_nss_db.h",
+    ]
+  }
+
+  if (!is_chromeos) {
+    sources -= [
+      "scoped_test_nss_chromeos_user.cc",
+      "scoped_test_nss_chromeos_user.h",
+      "scoped_test_system_nss_key_slot.cc",
+      "scoped_test_system_nss_key_slot.h",
+    ]
+  }
+}
+
+# This is a meta-target that forwards to NSS's SSL library or OpenSSL,
+# according to the state of the crypto flags. A target just wanting to depend
+# on the current SSL library should just depend on this.
+group("platform") {
+  if (use_openssl) {
+    deps = [ "//third_party/boringssl" ]
+  } else {
+    deps = [ "//net/third_party/nss/ssl:libssl" ]
+    if (is_linux) {
+      # On Linux, we use the system NSS (excepting SSL where we always use our
+      # own).
+      #
+      # We always need our SSL header search path to come before the system one
+      # so our versions are used. The libssl target will add the search path we
+      # want, but according to GN's ordering rules, public_configs' search path
+      # will get applied before ones inherited from our dependencies.
+      # Therefore, we need to explicitly list our custom libssl's config here
+      # before the system one.
+      public_configs = [
+        "//net/third_party/nss/ssl:ssl_config",
+        "//third_party/nss:system_nss_no_ssl_config",
+      ]
+    } else {
+      # Non-Linux platforms use the hermetic NSS from the tree.
+      deps += [
+        "//third_party/nss:nspr",
+        "//third_party/nss:nss",
+      ]
+    }
+  }
+}
diff --git a/crypto/OWNERS b/crypto/OWNERS
new file mode 100644
index 0000000..6f5cc98
--- /dev/null
+++ b/crypto/OWNERS
@@ -0,0 +1,4 @@
+agl@chromium.org
+rsleevi@chromium.org
+rvargas@chromium.org
+wtc@chromium.org
diff --git a/crypto/PRESUBMIT.py b/crypto/PRESUBMIT.py
new file mode 100644
index 0000000..a2a5af9
--- /dev/null
+++ b/crypto/PRESUBMIT.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Chromium presubmit script for src/net.
+
+See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
+for more details on the presubmit API built into gcl.
+"""
+
+def GetPreferredTryMasters(project, change):
+  # Changes in crypto often need a corresponding OpenSSL edit.
+  return {
+    'tryserver.chromium.linux': {
+      'linux_redux': set(['defaulttests']),
+    }
+  }
diff --git a/crypto/apple_keychain.h b/crypto/apple_keychain.h
new file mode 100644
index 0000000..840ccee
--- /dev/null
+++ b/crypto/apple_keychain.h
@@ -0,0 +1,108 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_KEYCHAIN_MAC_H_
+#define CRYPTO_KEYCHAIN_MAC_H_
+
+#include <Security/Security.h>
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+#if defined (OS_IOS)
+typedef void* SecKeychainRef;
+typedef void* SecKeychainItemRef;
+typedef void SecKeychainAttributeList;
+#endif
+
+namespace crypto {
+
+// Wraps the KeychainServices API in a very thin layer, to allow it to be
+// mocked out for testing.
+
+// See Keychain Services documentation for function documentation, as these call
+// through directly to their Keychain Services equivalents (Foo ->
+// SecKeychainFoo). The only exception is Free, which should be used for
+// anything returned from this class that would normally be freed with
+// CFRelease (to aid in testing).
+class CRYPTO_EXPORT AppleKeychain {
+ public:
+  AppleKeychain();
+  virtual ~AppleKeychain();
+
+  virtual OSStatus FindGenericPassword(CFTypeRef keychainOrArray,
+                                       UInt32 serviceNameLength,
+                                       const char* serviceName,
+                                       UInt32 accountNameLength,
+                                       const char* accountName,
+                                       UInt32* passwordLength,
+                                       void** passwordData,
+                                       SecKeychainItemRef* itemRef) const;
+
+  virtual OSStatus ItemFreeContent(SecKeychainAttributeList* attrList,
+                                   void* data) const;
+
+  virtual OSStatus AddGenericPassword(SecKeychainRef keychain,
+                                      UInt32 serviceNameLength,
+                                      const char* serviceName,
+                                      UInt32 accountNameLength,
+                                      const char* accountName,
+                                      UInt32 passwordLength,
+                                      const void* passwordData,
+                                      SecKeychainItemRef* itemRef) const;
+
+#if !defined(OS_IOS)
+  virtual OSStatus ItemCopyAttributesAndData(
+      SecKeychainItemRef itemRef,
+      SecKeychainAttributeInfo* info,
+      SecItemClass* itemClass,
+      SecKeychainAttributeList** attrList,
+      UInt32* length,
+      void** outData) const;
+
+  virtual OSStatus ItemModifyAttributesAndData(
+      SecKeychainItemRef itemRef,
+      const SecKeychainAttributeList* attrList,
+      UInt32 length,
+      const void* data) const;
+
+  virtual OSStatus ItemFreeAttributesAndData(SecKeychainAttributeList* attrList,
+                                             void* data) const;
+
+  virtual OSStatus ItemDelete(SecKeychainItemRef itemRef) const;
+
+  virtual OSStatus SearchCreateFromAttributes(
+      CFTypeRef keychainOrArray,
+      SecItemClass itemClass,
+      const SecKeychainAttributeList* attrList,
+      SecKeychainSearchRef* searchRef) const;
+
+  virtual OSStatus SearchCopyNext(SecKeychainSearchRef searchRef,
+                                  SecKeychainItemRef* itemRef) const;
+
+  virtual OSStatus AddInternetPassword(SecKeychainRef keychain,
+                                       UInt32 serverNameLength,
+                                       const char* serverName,
+                                       UInt32 securityDomainLength,
+                                       const char* securityDomain,
+                                       UInt32 accountNameLength,
+                                       const char* accountName,
+                                       UInt32 pathLength, const char* path,
+                                       UInt16 port, SecProtocolType protocol,
+                                       SecAuthenticationType authenticationType,
+                                       UInt32 passwordLength,
+                                       const void* passwordData,
+                                       SecKeychainItemRef* itemRef) const;
+
+  // Calls CFRelease on the given ref, after checking that |ref| is non-NULL.
+  virtual void Free(CFTypeRef ref) const;
+#endif  // !defined(OS_IOS)
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AppleKeychain);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_KEYCHAIN_MAC_H_
diff --git a/crypto/apple_keychain_ios.mm b/crypto/apple_keychain_ios.mm
new file mode 100644
index 0000000..74cf129
--- /dev/null
+++ b/crypto/apple_keychain_ios.mm
@@ -0,0 +1,196 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/apple_keychain.h"
+
+#import <Foundation/Foundation.h>
+
+#include "base/mac/foundation_util.h"
+#include "base/mac/scoped_cftyperef.h"
+#include "base/mac/scoped_nsobject.h"
+
+namespace {
+
+enum KeychainAction {
+  kKeychainActionCreate,
+  kKeychainActionUpdate
+};
+
+// Creates a dictionary that can be used to query the keystore.
+// Ownership follows the Create rule.
+CFDictionaryRef CreateGenericPasswordQuery(UInt32 serviceNameLength,
+                                           const char* serviceName,
+                                           UInt32 accountNameLength,
+                                           const char* accountName) {
+  CFMutableDictionaryRef query =
+      CFDictionaryCreateMutable(NULL,
+                                5,
+                                &kCFTypeDictionaryKeyCallBacks,
+                                &kCFTypeDictionaryValueCallBacks);
+  // Type of element is generic password.
+  CFDictionarySetValue(query, kSecClass, kSecClassGenericPassword);
+
+  // Set the service name.
+  base::scoped_nsobject<NSString> service_name_ns(
+      [[NSString alloc] initWithBytes:serviceName
+                               length:serviceNameLength
+                             encoding:NSUTF8StringEncoding]);
+  CFDictionarySetValue(query, kSecAttrService,
+                       base::mac::NSToCFCast(service_name_ns));
+
+  // Set the account name.
+  base::scoped_nsobject<NSString> account_name_ns(
+      [[NSString alloc] initWithBytes:accountName
+                               length:accountNameLength
+                             encoding:NSUTF8StringEncoding]);
+  CFDictionarySetValue(query, kSecAttrAccount,
+                       base::mac::NSToCFCast(account_name_ns));
+
+  // Use the proper search constants, return only the data of the first match.
+  CFDictionarySetValue(query, kSecMatchLimit, kSecMatchLimitOne);
+  CFDictionarySetValue(query, kSecReturnData, kCFBooleanTrue);
+  return query;
+}
+
+// Creates a dictionary conatining the data to save into the keychain.
+// Ownership follows the Create rule.
+CFDictionaryRef CreateKeychainData(UInt32 serviceNameLength,
+                                   const char* serviceName,
+                                   UInt32 accountNameLength,
+                                   const char* accountName,
+                                   UInt32 passwordLength,
+                                   const void* passwordData,
+                                   KeychainAction action) {
+  CFMutableDictionaryRef keychain_data =
+      CFDictionaryCreateMutable(NULL,
+                                0,
+                                &kCFTypeDictionaryKeyCallBacks,
+                                &kCFTypeDictionaryValueCallBacks);
+
+  // Set the password.
+  NSData* password = [NSData dataWithBytes:passwordData length:passwordLength];
+  CFDictionarySetValue(keychain_data, kSecValueData,
+                       base::mac::NSToCFCast(password));
+
+  // If this is not a creation, no structural information is needed.
+  if (action != kKeychainActionCreate)
+    return keychain_data;
+
+  // Set the type of the data.
+  CFDictionarySetValue(keychain_data, kSecClass, kSecClassGenericPassword);
+
+  // Only allow access when the device has been unlocked.
+  CFDictionarySetValue(keychain_data,
+                       kSecAttrAccessible,
+                       kSecAttrAccessibleWhenUnlocked);
+
+  // Set the service name.
+  base::scoped_nsobject<NSString> service_name_ns(
+      [[NSString alloc] initWithBytes:serviceName
+                               length:serviceNameLength
+                             encoding:NSUTF8StringEncoding]);
+  CFDictionarySetValue(keychain_data, kSecAttrService,
+                       base::mac::NSToCFCast(service_name_ns));
+
+  // Set the account name.
+  base::scoped_nsobject<NSString> account_name_ns(
+      [[NSString alloc] initWithBytes:accountName
+                               length:accountNameLength
+                             encoding:NSUTF8StringEncoding]);
+  CFDictionarySetValue(keychain_data, kSecAttrAccount,
+                       base::mac::NSToCFCast(account_name_ns));
+
+  return keychain_data;
+}
+
+}  // namespace
+
+namespace crypto {
+
+AppleKeychain::AppleKeychain() {}
+
+AppleKeychain::~AppleKeychain() {}
+
+OSStatus AppleKeychain::ItemFreeContent(SecKeychainAttributeList* attrList,
+                                        void* data) const {
+  free(data);
+  return noErr;
+}
+
+OSStatus AppleKeychain::AddGenericPassword(SecKeychainRef keychain,
+                                           UInt32 serviceNameLength,
+                                           const char* serviceName,
+                                           UInt32 accountNameLength,
+                                           const char* accountName,
+                                           UInt32 passwordLength,
+                                           const void* passwordData,
+                                           SecKeychainItemRef* itemRef) const {
+  base::ScopedCFTypeRef<CFDictionaryRef> query(CreateGenericPasswordQuery(
+      serviceNameLength, serviceName, accountNameLength, accountName));
+  // Check that there is not already a password.
+  OSStatus status = SecItemCopyMatching(query, NULL);
+  if (status == errSecItemNotFound) {
+    // A new entry must be created.
+    base::ScopedCFTypeRef<CFDictionaryRef> keychain_data(
+        CreateKeychainData(serviceNameLength,
+                           serviceName,
+                           accountNameLength,
+                           accountName,
+                           passwordLength,
+                           passwordData,
+                           kKeychainActionCreate));
+    status = SecItemAdd(keychain_data, NULL);
+  } else if (status == noErr) {
+    // The entry must be updated.
+    base::ScopedCFTypeRef<CFDictionaryRef> keychain_data(
+        CreateKeychainData(serviceNameLength,
+                           serviceName,
+                           accountNameLength,
+                           accountName,
+                           passwordLength,
+                           passwordData,
+                           kKeychainActionUpdate));
+    status = SecItemUpdate(query, keychain_data);
+  }
+
+  return status;
+}
+
+OSStatus AppleKeychain::FindGenericPassword(CFTypeRef keychainOrArray,
+                                            UInt32 serviceNameLength,
+                                            const char* serviceName,
+                                            UInt32 accountNameLength,
+                                            const char* accountName,
+                                            UInt32* passwordLength,
+                                            void** passwordData,
+                                            SecKeychainItemRef* itemRef) const {
+  DCHECK((passwordData && passwordLength) ||
+         (!passwordData && !passwordLength));
+  base::ScopedCFTypeRef<CFDictionaryRef> query(CreateGenericPasswordQuery(
+      serviceNameLength, serviceName, accountNameLength, accountName));
+
+  // Get the keychain item containing the password.
+  CFTypeRef resultRef = NULL;
+  OSStatus status = SecItemCopyMatching(query, &resultRef);
+  base::ScopedCFTypeRef<CFTypeRef> result(resultRef);
+
+  if (status != noErr) {
+    if (passwordData) {
+      *passwordData = NULL;
+      *passwordLength = 0;
+    }
+    return status;
+  }
+
+  if (passwordData) {
+    CFDataRef data = base::mac::CFCast<CFDataRef>(result);
+    NSUInteger length = CFDataGetLength(data);
+    *passwordData = malloc(length * sizeof(UInt8));
+    CFDataGetBytes(data, CFRangeMake(0, length), (UInt8*)*passwordData);
+    *passwordLength = length;
+  }
+  return status;
+}
+
+}  // namespace crypto
diff --git a/crypto/apple_keychain_mac.mm b/crypto/apple_keychain_mac.mm
new file mode 100644
index 0000000..240c320
--- /dev/null
+++ b/crypto/apple_keychain_mac.mm
@@ -0,0 +1,144 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/apple_keychain.h"
+
+#import <Foundation/Foundation.h>
+
+#include "base/synchronization/lock.h"
+#include "crypto/mac_security_services_lock.h"
+
+namespace crypto {
+
+AppleKeychain::AppleKeychain() {}
+
+AppleKeychain::~AppleKeychain() {}
+
+OSStatus AppleKeychain::ItemCopyAttributesAndData(
+    SecKeychainItemRef itemRef,
+    SecKeychainAttributeInfo* info,
+    SecItemClass* itemClass,
+    SecKeychainAttributeList** attrList,
+    UInt32* length,
+    void** outData) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainItemCopyAttributesAndData(itemRef, info, itemClass,
+                                              attrList, length, outData);
+}
+
+OSStatus AppleKeychain::ItemModifyAttributesAndData(
+    SecKeychainItemRef itemRef,
+    const SecKeychainAttributeList* attrList,
+    UInt32 length,
+    const void* data) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainItemModifyAttributesAndData(itemRef, attrList, length,
+                                                data);
+}
+
+OSStatus AppleKeychain::ItemFreeAttributesAndData(
+    SecKeychainAttributeList* attrList,
+    void* data) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainItemFreeAttributesAndData(attrList, data);
+}
+
+OSStatus AppleKeychain::ItemDelete(SecKeychainItemRef itemRef) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainItemDelete(itemRef);
+}
+
+OSStatus AppleKeychain::SearchCreateFromAttributes(
+    CFTypeRef keychainOrArray,
+    SecItemClass itemClass,
+    const SecKeychainAttributeList* attrList,
+    SecKeychainSearchRef* searchRef) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainSearchCreateFromAttributes(keychainOrArray, itemClass,
+                                               attrList, searchRef);
+}
+
+OSStatus AppleKeychain::SearchCopyNext(SecKeychainSearchRef searchRef,
+                                       SecKeychainItemRef* itemRef) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainSearchCopyNext(searchRef, itemRef);
+}
+
+OSStatus AppleKeychain::AddInternetPassword(
+    SecKeychainRef keychain,
+    UInt32 serverNameLength,
+    const char* serverName,
+    UInt32 securityDomainLength,
+    const char* securityDomain,
+    UInt32 accountNameLength,
+    const char* accountName,
+    UInt32 pathLength,
+    const char* path,
+    UInt16 port,
+    SecProtocolType protocol,
+    SecAuthenticationType authenticationType,
+    UInt32 passwordLength,
+    const void* passwordData,
+    SecKeychainItemRef* itemRef) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainAddInternetPassword(keychain,
+                                        serverNameLength, serverName,
+                                        securityDomainLength, securityDomain,
+                                        accountNameLength, accountName,
+                                        pathLength, path,
+                                        port, protocol, authenticationType,
+                                        passwordLength, passwordData,
+                                        itemRef);
+}
+
+OSStatus AppleKeychain::FindGenericPassword(CFTypeRef keychainOrArray,
+                                            UInt32 serviceNameLength,
+                                            const char* serviceName,
+                                            UInt32 accountNameLength,
+                                            const char* accountName,
+                                            UInt32* passwordLength,
+                                            void** passwordData,
+                                            SecKeychainItemRef* itemRef) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainFindGenericPassword(keychainOrArray,
+                                        serviceNameLength,
+                                        serviceName,
+                                        accountNameLength,
+                                        accountName,
+                                        passwordLength,
+                                        passwordData,
+                                        itemRef);
+}
+
+OSStatus AppleKeychain::ItemFreeContent(SecKeychainAttributeList* attrList,
+                                        void* data) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainItemFreeContent(attrList, data);
+}
+
+OSStatus AppleKeychain::AddGenericPassword(SecKeychainRef keychain,
+                                           UInt32 serviceNameLength,
+                                           const char* serviceName,
+                                           UInt32 accountNameLength,
+                                           const char* accountName,
+                                           UInt32 passwordLength,
+                                           const void* passwordData,
+                                           SecKeychainItemRef* itemRef) const {
+  base::AutoLock lock(GetMacSecurityServicesLock());
+  return SecKeychainAddGenericPassword(keychain,
+                                       serviceNameLength,
+                                       serviceName,
+                                       accountNameLength,
+                                       accountName,
+                                       passwordLength,
+                                       passwordData,
+                                       itemRef);
+}
+
+void AppleKeychain::Free(CFTypeRef ref) const {
+  if (ref)
+    CFRelease(ref);
+}
+
+}  // namespace crypto
diff --git a/crypto/capi_util.cc b/crypto/capi_util.cc
new file mode 100644
index 0000000..2cf1062
--- /dev/null
+++ b/crypto/capi_util.cc
@@ -0,0 +1,57 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/capi_util.h"
+
+#include "base/basictypes.h"
+#include "base/memory/singleton.h"
+#include "base/synchronization/lock.h"
+
+namespace {
+
+class CAPIUtilSingleton {
+ public:
+  static CAPIUtilSingleton* GetInstance() {
+    return Singleton<CAPIUtilSingleton>::get();
+  }
+
+  // Returns a lock to guard calls to CryptAcquireContext with
+  // CRYPT_DELETEKEYSET or CRYPT_NEWKEYSET.
+  base::Lock& acquire_context_lock() {
+    return acquire_context_lock_;
+  }
+
+ private:
+  friend class Singleton<CAPIUtilSingleton>;
+  friend struct DefaultSingletonTraits<CAPIUtilSingleton>;
+
+  CAPIUtilSingleton() {}
+
+  base::Lock acquire_context_lock_;
+
+  DISALLOW_COPY_AND_ASSIGN(CAPIUtilSingleton);
+};
+
+}  // namespace
+
+namespace crypto {
+
+BOOL CryptAcquireContextLocked(HCRYPTPROV* prov,
+                               LPCWSTR container,
+                               LPCWSTR provider,
+                               DWORD prov_type,
+                               DWORD flags) {
+  base::AutoLock lock(CAPIUtilSingleton::GetInstance()->acquire_context_lock());
+  return CryptAcquireContext(prov, container, provider, prov_type, flags);
+}
+
+void* WINAPI CryptAlloc(size_t size) {
+  return malloc(size);
+}
+
+void WINAPI CryptFree(void* p) {
+  free(p);
+}
+
+}  // namespace crypto
diff --git a/crypto/capi_util.h b/crypto/capi_util.h
new file mode 100644
index 0000000..09a44e7
--- /dev/null
+++ b/crypto/capi_util.h
@@ -0,0 +1,39 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_CAPI_UTIL_H_
+#define CRYPTO_CAPI_UTIL_H_
+
+#include <windows.h>
+#include <wincrypt.h>
+
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// CryptAcquireContext when passed CRYPT_NEWKEYSET or CRYPT_DELETEKEYSET in
+// flags is not thread-safe. For such calls, we create a global lock to
+// synchronize it.
+//
+// From "Threading Issues with Cryptographic Service Providers",
+// <http://msdn.microsoft.com/en-us/library/aa388149(v=VS.85).aspx>:
+//
+// "The CryptAcquireContext function is generally thread safe unless
+// CRYPT_NEWKEYSET or CRYPT_DELETEKEYSET is specified in the dwFlags
+// parameter."
+CRYPTO_EXPORT BOOL CryptAcquireContextLocked(HCRYPTPROV* prov,
+                                             LPCWSTR container,
+                                             LPCWSTR provider,
+                                             DWORD prov_type,
+                                             DWORD flags);
+
+// Wrappers of malloc and free for CryptoAPI routines that need memory
+// allocators, such as in CRYPT_DECODE_PARA. Such routines require WINAPI
+// calling conventions.
+CRYPTO_EXPORT void* WINAPI CryptAlloc(size_t size);
+CRYPTO_EXPORT void WINAPI CryptFree(void* p);
+
+}  // namespace crypto
+
+#endif  // CRYPTO_CAPI_UTIL_H_
diff --git a/crypto/crypto.gyp b/crypto/crypto.gyp
new file mode 100644
index 0000000..6d60f48
--- /dev/null
+++ b/crypto/crypto.gyp
@@ -0,0 +1,301 @@
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    'chromium_code': 1,
+  },
+  'includes': [
+    'crypto.gypi',
+  ],
+  'targets': [
+    {
+      'target_name': 'crypto',
+      'type': '<(component)',
+      'product_name': 'crcrypto',  # Avoid colliding with OpenSSL's libcrypto
+      'dependencies': [
+        '../base/base.gyp:base',
+        '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+      ],
+      'defines': [
+        'CRYPTO_IMPLEMENTATION',
+      ],
+      'conditions': [
+        [ 'os_posix == 1 and OS != "mac" and OS != "ios" and OS != "android"', {
+          'dependencies': [
+            '../build/linux/system.gyp:ssl',
+          ],
+          'export_dependent_settings': [
+            '../build/linux/system.gyp:ssl',
+          ],
+          'conditions': [
+            [ 'chromeos==1', {
+                'sources/': [ ['include', '_chromeos\\.cc$'] ]
+              },
+            ],
+          ],
+        }, {  # os_posix != 1 or OS == "mac" or OS == "ios" or OS == "android"
+            'sources!': [
+              'hmac_win.cc',
+              'symmetric_key_win.cc',
+            ],
+        }],
+        [ 'OS != "mac" and OS != "ios"', {
+          'sources!': [
+            'apple_keychain.h',
+            'mock_apple_keychain.cc',
+            'mock_apple_keychain.h',
+          ],
+        }],
+        [ 'OS == "android"', {
+            'includes': [
+              '../build/android/cpufeatures.gypi',
+            ],
+        }],
+        [ 'os_bsd==1', {
+          'link_settings': {
+            'libraries': [
+              '-L/usr/local/lib -lexecinfo',
+              ],
+            },
+          },
+        ],
+        [ 'OS == "mac"', {
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/Security.framework',
+            ],
+          },
+        }, {  # OS != "mac"
+          'sources!': [
+            'cssm_init.cc',
+            'cssm_init.h',
+            'mac_security_services_lock.cc',
+            'mac_security_services_lock.h',
+          ],
+        }],
+        [ 'use_openssl == 0 and (OS == "mac" or OS == "ios" or OS == "win")', {
+          'dependencies': [
+            '../third_party/nss/nss.gyp:nspr',
+            '../third_party/nss/nss.gyp:nss',
+          ],
+          'export_dependent_settings': [
+            '../third_party/nss/nss.gyp:nspr',
+            '../third_party/nss/nss.gyp:nss',
+          ],
+        }],
+        [ 'OS != "win"', {
+          'sources!': [
+            'capi_util.h',
+            'capi_util.cc',
+          ],
+        }],
+        [ 'OS == "win"', {
+          'msvs_disabled_warnings': [
+            4267,  # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
+            4018,
+          ],
+        }],
+        [ 'use_openssl==1', {
+            'dependencies': [
+              '../third_party/boringssl/boringssl.gyp:boringssl',
+            ],
+            # TODO(joth): Use a glob to match exclude patterns once the
+            #             OpenSSL file set is complete.
+            'sources!': [
+              'ec_private_key_nss.cc',
+              'ec_signature_creator_nss.cc',
+              'encryptor_nss.cc',
+              'hmac_nss.cc',
+              'nss_util.cc',
+              'nss_util.h',
+              'nss_util_internal.h',
+              'rsa_private_key_nss.cc',
+              'secure_hash_default.cc',
+              'signature_creator_nss.cc',
+              'signature_verifier_nss.cc',
+              'symmetric_key_nss.cc',
+              'third_party/nss/chromium-blapi.h',
+              'third_party/nss/chromium-blapit.h',
+              'third_party/nss/chromium-nss.h',
+              'third_party/nss/chromium-prtypes.h',
+              'third_party/nss/chromium-sha256.h',
+              'third_party/nss/pk11akey.cc',
+              'third_party/nss/rsawrapr.c',
+              'third_party/nss/secsign.cc',
+              'third_party/nss/sha512.cc',
+            ],
+          }, {
+            'sources!': [
+              'ec_private_key_openssl.cc',
+              'ec_signature_creator_openssl.cc',
+              'encryptor_openssl.cc',
+              'hmac_openssl.cc',
+              'openssl_bio_string.cc',
+              'openssl_bio_string.h',
+              'openssl_util.cc',
+              'openssl_util.h',
+              'rsa_private_key_openssl.cc',
+              'secure_hash_openssl.cc',
+              'signature_creator_openssl.cc',
+              'signature_verifier_openssl.cc',
+              'symmetric_key_openssl.cc',
+            ],
+        },],
+      ],
+      'sources': [
+        '<@(crypto_sources)',
+      ],
+    },
+    {
+      'target_name': 'crypto_unittests',
+      'type': 'executable',
+      'sources': [
+        'curve25519_unittest.cc',
+        'ec_private_key_unittest.cc',
+        'ec_signature_creator_unittest.cc',
+        'encryptor_unittest.cc',
+        'ghash_unittest.cc',
+        'hkdf_unittest.cc',
+        'hmac_unittest.cc',
+        'nss_util_unittest.cc',
+        'openssl_bio_string_unittest.cc',
+        'p224_unittest.cc',
+        'p224_spake_unittest.cc',
+        'random_unittest.cc',
+        'rsa_private_key_unittest.cc',
+        'rsa_private_key_nss_unittest.cc',
+        'secure_hash_unittest.cc',
+        'sha2_unittest.cc',
+        'signature_creator_unittest.cc',
+        'signature_verifier_unittest.cc',
+        'symmetric_key_unittest.cc',
+      ],
+      'dependencies': [
+        'crypto',
+        'crypto_test_support',
+        '../base/base.gyp:base',
+        '../base/base.gyp:run_all_unittests',
+        '../base/base.gyp:test_support_base',
+        '../testing/gmock.gyp:gmock',
+        '../testing/gtest.gyp:gtest',
+      ],
+      'conditions': [
+        [ 'os_posix == 1 and OS != "mac" and OS != "android" and OS != "ios"', {
+          'conditions': [
+            [ 'use_allocator!="none"', {
+                'dependencies': [
+                  '../base/allocator/allocator.gyp:allocator',
+                ],
+              },
+            ],
+          ],
+          'dependencies': [
+            '../build/linux/system.gyp:ssl',
+          ],
+        }, {  # os_posix != 1 or OS == "mac" or OS == "android" or OS == "ios"
+          'sources!': [
+            'rsa_private_key_nss_unittest.cc',
+          ]
+        }],
+        [ 'use_openssl == 0 and (OS == "mac" or OS == "ios" or OS == "win")', {
+          'dependencies': [
+            '../third_party/nss/nss.gyp:nspr',
+          ],
+        }],
+        [ 'OS == "win"', {
+          # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
+          'msvs_disabled_warnings': [4267, ],
+        }],
+        [ 'use_openssl==1', {
+          'dependencies': [
+            '../third_party/boringssl/boringssl.gyp:boringssl',
+          ],
+          'sources!': [
+            'nss_util_unittest.cc',
+            'rsa_private_key_nss_unittest.cc',
+          ],
+        }, {
+          'sources!': [
+            'openssl_bio_string_unittest.cc',
+          ],
+        }],
+      ],
+    },
+  ],
+  'conditions': [
+    ['OS == "win" and target_arch=="ia32"', {
+      'targets': [
+        {
+          'target_name': 'crypto_nacl_win64',
+          # We do not want nacl_helper to depend on NSS because this would
+          # require including a 64-bit copy of NSS. Thus, use the native APIs
+          # for the helper.
+          'type': '<(component)',
+          'dependencies': [
+            '../base/base.gyp:base_win64',
+            '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations_win64',
+          ],
+          'sources': [
+            '<@(hmac_win64_related_sources)',
+          ],
+          'defines': [
+           'CRYPTO_IMPLEMENTATION',
+           '<@(nacl_win64_defines)',
+          ],
+          'msvs_disabled_warnings': [
+            4018,
+          ],
+          'configurations': {
+            'Common_Base': {
+              'msvs_target_platform': 'x64',
+            },
+          },
+        },
+      ],
+    }],
+    ['use_nss==1', {
+      'targets': [
+        {
+          'target_name': 'crypto_test_support',
+          'type': 'static_library',
+          'dependencies': [
+            '../base/base.gyp:base',
+            'crypto',
+          ],
+          'sources': [
+            'scoped_test_nss_db.cc',
+            'scoped_test_nss_db.h',
+            'scoped_test_nss_chromeos_user.cc',
+            'scoped_test_nss_chromeos_user.h',
+            'scoped_test_system_nss_key_slot.cc',
+            'scoped_test_system_nss_key_slot.h',
+          ],
+          'conditions': [
+            ['use_nss==0', {
+              'sources!': [
+                'scoped_test_nss_db.cc',
+                'scoped_test_nss_db.h',
+              ],
+            }],
+            [ 'chromeos==0', {
+              'sources!': [
+                'scoped_test_nss_chromeos_user.cc',
+                'scoped_test_nss_chromeos_user.h',
+                'scoped_test_system_nss_key_slot.cc',
+                'scoped_test_system_nss_key_slot.h',
+              ],
+            }],
+          ],
+        }
+      ]}, {  # use_nss==0
+      'targets': [
+        {
+          'target_name': 'crypto_test_support',
+          'type': 'none',
+          'sources': [],
+        }
+    ]}],
+  ],
+}
diff --git a/crypto/crypto.gypi b/crypto/crypto.gypi
new file mode 100644
index 0000000..de65e19
--- /dev/null
+++ b/crypto/crypto.gypi
@@ -0,0 +1,104 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    # Put all transitive dependencies for Windows HMAC here.
+    # This is required so that we can build them for nacl win64.
+    'variables': {
+      'hmac_win64_related_sources': [
+        'hmac.cc',
+        'hmac.h',
+        'hmac_win.cc',
+        'secure_util.cc',
+        'secure_util.h',
+        'symmetric_key.h',
+        'symmetric_key_win.cc',
+        'third_party/nss/chromium-blapi.h',
+        'third_party/nss/chromium-blapit.h',
+        'third_party/nss/chromium-prtypes.h',
+        'third_party/nss/chromium-sha256.h',
+        'third_party/nss/sha512.cc',
+      ],
+    },
+    'hmac_win64_related_sources': [ '<@(hmac_win64_related_sources)' ],
+    'crypto_sources': [
+      # NOTE: all transitive dependencies of HMAC on windows need
+      #     to be placed in the source list above.
+      '<@(hmac_win64_related_sources)',
+      'apple_keychain.h',
+      'apple_keychain_ios.mm',
+      'apple_keychain_mac.mm',
+      'capi_util.cc',
+      'capi_util.h',
+      'crypto_export.h',
+      'cssm_init.cc',
+      'cssm_init.h',
+      'curve25519.cc',
+      'curve25519.h',
+      'curve25519-donna.c',
+      'ghash.cc',
+      'ghash.h',
+      'ec_private_key.h',
+      'ec_private_key_nss.cc',
+      'ec_private_key_openssl.cc',
+      'ec_signature_creator.cc',
+      'ec_signature_creator.h',
+      'ec_signature_creator_impl.h',
+      'ec_signature_creator_nss.cc',
+      'ec_signature_creator_openssl.cc',
+      'encryptor.cc',
+      'encryptor.h',
+      'encryptor_nss.cc',
+      'encryptor_openssl.cc',
+      'hkdf.cc',
+      'hkdf.h',
+      'hmac_nss.cc',
+      'hmac_openssl.cc',
+      'mac_security_services_lock.cc',
+      'mac_security_services_lock.h',
+      'mock_apple_keychain.cc',
+      'mock_apple_keychain.h',
+      'mock_apple_keychain_ios.cc',
+      'mock_apple_keychain_mac.cc',
+      'p224_spake.cc',
+      'p224_spake.h',
+      'nss_crypto_module_delegate.h',
+      'nss_util.cc',
+      'nss_util.h',
+      'nss_util_internal.h',
+      'openssl_bio_string.cc',
+      'openssl_bio_string.h',
+      'openssl_util.cc',
+      'openssl_util.h',
+      'p224.cc',
+      'p224.h',
+      'random.h',
+      'random.cc',
+      'rsa_private_key.cc',
+      'rsa_private_key.h',
+      'rsa_private_key_nss.cc',
+      'rsa_private_key_openssl.cc',
+      'scoped_capi_types.h',
+      'scoped_nss_types.h',
+      'secure_hash.h',
+      'secure_hash_default.cc',
+      'secure_hash_openssl.cc',
+      'sha2.cc',
+      'sha2.h',
+      'signature_creator.h',
+      'signature_creator_nss.cc',
+      'signature_creator_openssl.cc',
+      'signature_verifier.h',
+      'signature_verifier_nss.cc',
+      'signature_verifier_openssl.cc',
+      'symmetric_key_nss.cc',
+      'symmetric_key_openssl.cc',
+      'third_party/nss/chromium-nss.h',
+      'third_party/nss/pk11akey.cc',
+      'third_party/nss/rsawrapr.c',
+      'third_party/nss/secsign.cc',
+    ]
+  }
+}
diff --git a/crypto/crypto_export.h b/crypto/crypto_export.h
new file mode 100644
index 0000000..983afe6
--- /dev/null
+++ b/crypto/crypto_export.h
@@ -0,0 +1,38 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_CRYPTO_EXPORT_H_
+#define CRYPTO_CRYPTO_EXPORT_H_
+
+// Defines CRYPTO_EXPORT so that functionality implemented by the crypto module
+// can be exported to consumers, and CRYPTO_EXPORT_PRIVATE that allows unit
+// tests to access features not intended to be used directly by real consumers.
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(CRYPTO_IMPLEMENTATION)
+#define CRYPTO_EXPORT __declspec(dllexport)
+#define CRYPTO_EXPORT_PRIVATE __declspec(dllexport)
+#else
+#define CRYPTO_EXPORT __declspec(dllimport)
+#define CRYPTO_EXPORT_PRIVATE __declspec(dllimport)
+#endif  // defined(CRYPTO_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#if defined(CRYPTO_IMPLEMENTATION)
+#define CRYPTO_EXPORT __attribute__((visibility("default")))
+#define CRYPTO_EXPORT_PRIVATE __attribute__((visibility("default")))
+#else
+#define CRYPTO_EXPORT
+#define CRYPTO_EXPORT_PRIVATE
+#endif
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define CRYPTO_EXPORT
+#define CRYPTO_EXPORT_PRIVATE
+#endif
+
+#endif  // CRYPTO_CRYPTO_EXPORT_H_
diff --git a/crypto/crypto_nacl.gyp b/crypto/crypto_nacl.gyp
new file mode 100644
index 0000000..4451610
--- /dev/null
+++ b/crypto/crypto_nacl.gyp
@@ -0,0 +1,47 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    'chromium_code': 1,
+  },
+  'includes': [
+    '../native_client/build/untrusted.gypi',
+    'crypto.gypi',
+  ],
+  'targets': [
+    {
+      'target_name': 'crypto_nacl',
+      'type': 'none',
+      'variables': {
+        'nacl_untrusted_build': 1,
+        'nlib_target': 'libcrypto_nacl.a',
+        'build_glibc': 0,
+        'build_newlib': 0,
+        'build_pnacl_newlib': 1,
+      },
+      'dependencies': [
+        '../third_party/boringssl/boringssl_nacl.gyp:boringssl_nacl',
+        '../native_client/tools.gyp:prep_toolchain',
+        '../native_client_sdk/native_client_sdk_untrusted.gyp:nacl_io_untrusted',
+      ],
+      'defines': [
+        'CRYPTO_IMPLEMENTATION',
+      ],
+      'sources': [
+        '<@(crypto_sources)',
+      ],
+      'sources/': [
+        ['exclude', '_nss\.(cc|h)$'],
+        ['exclude', '^(mock_)?apple_'],
+        ['exclude', '^capi_'],
+        ['exclude', '^cssm_'],
+        ['exclude', '^nss_'],
+        ['exclude', '^mac_'],
+        ['exclude', '^third_party/nss/'],
+        ['include', '^third_party/nss/sha512.cc'],
+      ],
+    },
+  ],
+}
diff --git a/crypto/cssm_init.cc b/crypto/cssm_init.cc
new file mode 100644
index 0000000..208309c
--- /dev/null
+++ b/crypto/cssm_init.cc
@@ -0,0 +1,204 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/cssm_init.h"
+
+#include <Security/SecBase.h>
+
+#include "base/logging.h"
+#include "base/mac/scoped_cftyperef.h"
+#include "base/memory/singleton.h"
+#include "base/strings/sys_string_conversions.h"
+
+// When writing crypto code for Mac OS X, you may find the following
+// documentation useful:
+// - Common Security: CDSA and CSSM, Version 2 (with corrigenda)
+//   http://www.opengroup.org/security/cdsa.htm
+// - Apple Cryptographic Service Provider Functional Specification
+// - CryptoSample: http://developer.apple.com/SampleCode/CryptoSample/
+
+namespace {
+
+void* CSSMMalloc(CSSM_SIZE size, void* alloc_ref) {
+  return malloc(size);
+}
+
+void CSSMFree(void* mem_ptr, void* alloc_ref) {
+  free(mem_ptr);
+}
+
+void* CSSMRealloc(void* ptr, CSSM_SIZE size, void* alloc_ref) {
+  return realloc(ptr, size);
+}
+
+void* CSSMCalloc(uint32 num, CSSM_SIZE size, void* alloc_ref) {
+  return calloc(num, size);
+}
+
+class CSSMInitSingleton {
+ public:
+  static CSSMInitSingleton* GetInstance() {
+    return Singleton<CSSMInitSingleton,
+                     LeakySingletonTraits<CSSMInitSingleton> >::get();
+  }
+
+  CSSM_CSP_HANDLE csp_handle() const { return csp_handle_; }
+  CSSM_CL_HANDLE cl_handle() const { return cl_handle_; }
+  CSSM_TP_HANDLE tp_handle() const { return tp_handle_; }
+
+ private:
+  CSSMInitSingleton()
+      : inited_(false), csp_loaded_(false), cl_loaded_(false),
+        tp_loaded_(false), csp_handle_(CSSM_INVALID_HANDLE),
+        cl_handle_(CSSM_INVALID_HANDLE), tp_handle_(CSSM_INVALID_HANDLE) {
+    static CSSM_VERSION version = {2, 0};
+    // TODO(wtc): what should our caller GUID be?
+    static const CSSM_GUID test_guid = {
+      0xFADE, 0, 0, { 1, 2, 3, 4, 5, 6, 7, 0 }
+    };
+    CSSM_RETURN crtn;
+    CSSM_PVC_MODE pvc_policy = CSSM_PVC_NONE;
+    crtn = CSSM_Init(&version, CSSM_PRIVILEGE_SCOPE_NONE, &test_guid,
+                     CSSM_KEY_HIERARCHY_NONE, &pvc_policy, NULL);
+    if (crtn) {
+      NOTREACHED();
+      return;
+    }
+    inited_ = true;
+
+    crtn = CSSM_ModuleLoad(&gGuidAppleCSP, CSSM_KEY_HIERARCHY_NONE, NULL, NULL);
+    if (crtn) {
+      NOTREACHED();
+      return;
+    }
+    csp_loaded_ = true;
+    crtn = CSSM_ModuleLoad(
+        &gGuidAppleX509CL, CSSM_KEY_HIERARCHY_NONE, NULL, NULL);
+    if (crtn) {
+      NOTREACHED();
+      return;
+    }
+    cl_loaded_ = true;
+    crtn = CSSM_ModuleLoad(
+        &gGuidAppleX509TP, CSSM_KEY_HIERARCHY_NONE, NULL, NULL);
+    if (crtn) {
+      NOTREACHED();
+      return;
+    }
+    tp_loaded_ = true;
+
+    const CSSM_API_MEMORY_FUNCS cssmMemoryFunctions = {
+      CSSMMalloc,
+      CSSMFree,
+      CSSMRealloc,
+      CSSMCalloc,
+      NULL
+    };
+
+    crtn = CSSM_ModuleAttach(&gGuidAppleCSP, &version, &cssmMemoryFunctions, 0,
+                             CSSM_SERVICE_CSP, 0, CSSM_KEY_HIERARCHY_NONE,
+                             NULL, 0, NULL, &csp_handle_);
+    DCHECK_EQ(CSSM_OK, crtn);
+    crtn = CSSM_ModuleAttach(&gGuidAppleX509CL, &version, &cssmMemoryFunctions,
+                             0, CSSM_SERVICE_CL, 0, CSSM_KEY_HIERARCHY_NONE,
+                             NULL, 0, NULL, &cl_handle_);
+    DCHECK_EQ(CSSM_OK, crtn);
+    crtn = CSSM_ModuleAttach(&gGuidAppleX509TP, &version, &cssmMemoryFunctions,
+                             0, CSSM_SERVICE_TP, 0, CSSM_KEY_HIERARCHY_NONE,
+                             NULL, 0, NULL, &tp_handle_);
+    DCHECK_EQ(CSSM_OK, crtn);
+  }
+
+  ~CSSMInitSingleton() {
+    CSSM_RETURN crtn;
+    if (csp_handle_) {
+      CSSM_RETURN crtn = CSSM_ModuleDetach(csp_handle_);
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+    if (cl_handle_) {
+      CSSM_RETURN crtn = CSSM_ModuleDetach(cl_handle_);
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+    if (tp_handle_) {
+      CSSM_RETURN crtn = CSSM_ModuleDetach(tp_handle_);
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+    if (csp_loaded_) {
+      crtn = CSSM_ModuleUnload(&gGuidAppleCSP, NULL, NULL);
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+    if (cl_loaded_) {
+      crtn = CSSM_ModuleUnload(&gGuidAppleX509CL, NULL, NULL);
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+    if (tp_loaded_) {
+      crtn = CSSM_ModuleUnload(&gGuidAppleX509TP, NULL, NULL);
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+    if (inited_) {
+      crtn = CSSM_Terminate();
+      DCHECK_EQ(CSSM_OK, crtn);
+    }
+  }
+
+  bool inited_;  // True if CSSM_Init has been called successfully.
+  bool csp_loaded_;  // True if gGuidAppleCSP has been loaded
+  bool cl_loaded_;  // True if gGuidAppleX509CL has been loaded.
+  bool tp_loaded_;  // True if gGuidAppleX509TP has been loaded.
+  CSSM_CSP_HANDLE csp_handle_;
+  CSSM_CL_HANDLE cl_handle_;
+  CSSM_TP_HANDLE tp_handle_;
+
+  friend struct DefaultSingletonTraits<CSSMInitSingleton>;
+};
+
+}  // namespace
+
+namespace crypto {
+
+void EnsureCSSMInit() {
+  CSSMInitSingleton::GetInstance();
+}
+
+CSSM_CSP_HANDLE GetSharedCSPHandle() {
+  return CSSMInitSingleton::GetInstance()->csp_handle();
+}
+
+CSSM_CL_HANDLE GetSharedCLHandle() {
+  return CSSMInitSingleton::GetInstance()->cl_handle();
+}
+
+CSSM_TP_HANDLE GetSharedTPHandle() {
+  return CSSMInitSingleton::GetInstance()->tp_handle();
+}
+
+void* CSSMMalloc(CSSM_SIZE size) {
+  return ::CSSMMalloc(size, NULL);
+}
+
+void CSSMFree(void* ptr) {
+  ::CSSMFree(ptr, NULL);
+}
+
+void LogCSSMError(const char* fn_name, CSSM_RETURN err) {
+  if (!err)
+    return;
+  base::ScopedCFTypeRef<CFStringRef> cfstr(
+      SecCopyErrorMessageString(err, NULL));
+  LOG(ERROR) << fn_name << " returned " << err
+             << " (" << base::SysCFStringRefToUTF8(cfstr) << ")";
+}
+
+ScopedCSSMData::ScopedCSSMData() {
+  memset(&data_, 0, sizeof(data_));
+}
+
+ScopedCSSMData::~ScopedCSSMData() {
+  if (data_.Data) {
+    CSSMFree(data_.Data);
+    data_.Data = NULL;
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/cssm_init.h b/crypto/cssm_init.h
new file mode 100644
index 0000000..e711099
--- /dev/null
+++ b/crypto/cssm_init.h
@@ -0,0 +1,60 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_CSSM_INIT_H_
+#define CRYPTO_CSSM_INIT_H_
+
+#include <Security/cssm.h>
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Initialize CSSM if it isn't already initialized.  This must be called before
+// any other CSSM functions.  This function is thread-safe, and CSSM will only
+// ever be initialized once.  CSSM will be properly shut down on program exit.
+CRYPTO_EXPORT void EnsureCSSMInit();
+
+// Returns the shared CSP handle used by CSSM functions.
+CRYPTO_EXPORT CSSM_CSP_HANDLE GetSharedCSPHandle();
+
+// Returns the shared CL handle used by CSSM functions.
+CRYPTO_EXPORT CSSM_CL_HANDLE GetSharedCLHandle();
+
+// Returns the shared TP handle used by CSSM functions.
+CRYPTO_EXPORT CSSM_TP_HANDLE GetSharedTPHandle();
+
+// Set of pointers to memory function wrappers that are required for CSSM
+extern const CSSM_API_MEMORY_FUNCS kCssmMemoryFunctions;
+
+// Utility function to log an error message including the error name.
+CRYPTO_EXPORT void LogCSSMError(const char *function_name, CSSM_RETURN err);
+
+// Utility functions to allocate and release CSSM memory.
+void* CSSMMalloc(CSSM_SIZE size);
+CRYPTO_EXPORT void CSSMFree(void* ptr);
+
+// Wrapper class for CSSM_DATA type. This should only be used when using the
+// CL/TP/CSP handles from above, since that's the only time we're guaranteed (or
+// supposed to be guaranteed) that our memory management functions will be used.
+// Apple's Sec* APIs manage their own memory so it shouldn't be used for those.
+// The constructor initializes data_ to zero and the destructor releases the
+// data properly.
+class ScopedCSSMData {
+ public:
+  ScopedCSSMData();
+  ~ScopedCSSMData();
+  operator CSSM_DATA*() { return &data_; }
+  CSSM_DATA* operator ->() { return &data_; }
+
+ private:
+  CSSM_DATA data_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedCSSMData);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_CSSM_INIT_H_
diff --git a/crypto/curve25519-donna.c b/crypto/curve25519-donna.c
new file mode 100644
index 0000000..f141ac0
--- /dev/null
+++ b/crypto/curve25519-donna.c
@@ -0,0 +1,592 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/*
+ * curve25519-donna: Curve25519 elliptic curve, public key function
+ *
+ * http://code.google.com/p/curve25519-donna/
+ *
+ * Adam Langley <agl@imperialviolet.org>
+ *
+ * Derived from public domain C code by Daniel J. Bernstein <djb@cr.yp.to>
+ *
+ * More information about curve25519 can be found here
+ *   http://cr.yp.to/ecdh.html
+ *
+ * djb's sample implementation of curve25519 is written in a special assembly
+ * language called qhasm and uses the floating point registers.
+ *
+ * This is, almost, a clean room reimplementation from the curve25519 paper. It
+ * uses many of the tricks described therein. Only the crecip function is taken
+ * from the sample implementation.
+ */
+
+#include <string.h>
+#include <stdint.h>
+
+typedef uint8_t u8;
+typedef int32_t s32;
+typedef int64_t limb;
+
+/* Field element representation:
+ *
+ * Field elements are written as an array of signed, 64-bit limbs, least
+ * significant first. The value of the field element is:
+ *   x[0] + 2^26·x[1] + x^51·x[2] + 2^102·x[3] + ...
+ *
+ * i.e. the limbs are 26, 25, 26, 25, ... bits wide.
+ */
+
+/* Sum two numbers: output += in */
+static void fsum(limb *output, const limb *in) {
+  unsigned i;
+  for (i = 0; i < 10; i += 2) {
+    output[0+i] = (output[0+i] + in[0+i]);
+    output[1+i] = (output[1+i] + in[1+i]);
+  }
+}
+
+/* Find the difference of two numbers: output = in - output
+ * (note the order of the arguments!)
+ */
+static void fdifference(limb *output, const limb *in) {
+  unsigned i;
+  for (i = 0; i < 10; ++i) {
+    output[i] = (in[i] - output[i]);
+  }
+}
+
+/* Multiply a number my a scalar: output = in * scalar */
+static void fscalar_product(limb *output, const limb *in, const limb scalar) {
+  unsigned i;
+  for (i = 0; i < 10; ++i) {
+    output[i] = in[i] * scalar;
+  }
+}
+
+/* Multiply two numbers: output = in2 * in
+ *
+ * output must be distinct to both inputs. The inputs are reduced coefficient
+ * form, the output is not.
+ */
+static void fproduct(limb *output, const limb *in2, const limb *in) {
+  output[0] =       ((limb) ((s32) in2[0])) * ((s32) in[0]);
+  output[1] =       ((limb) ((s32) in2[0])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[0]);
+  output[2] =  2 *  ((limb) ((s32) in2[1])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[0]);
+  output[3] =       ((limb) ((s32) in2[1])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[0]);
+  output[4] =       ((limb) ((s32) in2[2])) * ((s32) in[2]) +
+               2 * (((limb) ((s32) in2[1])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[0]);
+  output[5] =       ((limb) ((s32) in2[2])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[0]);
+  output[6] =  2 * (((limb) ((s32) in2[3])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[0]);
+  output[7] =       ((limb) ((s32) in2[3])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[0]);
+  output[8] =       ((limb) ((s32) in2[4])) * ((s32) in[4]) +
+               2 * (((limb) ((s32) in2[3])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[0]);
+  output[9] =       ((limb) ((s32) in2[4])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[0]);
+  output[10] = 2 * (((limb) ((s32) in2[5])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[2]);
+  output[11] =      ((limb) ((s32) in2[5])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[2]);
+  output[12] =      ((limb) ((s32) in2[6])) * ((s32) in[6]) +
+               2 * (((limb) ((s32) in2[5])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[3])) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[4]);
+  output[13] =      ((limb) ((s32) in2[6])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[4]);
+  output[14] = 2 * (((limb) ((s32) in2[7])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[5])) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[6]);
+  output[15] =      ((limb) ((s32) in2[7])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[6]);
+  output[16] =      ((limb) ((s32) in2[8])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in2[7])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[7]));
+  output[17] =      ((limb) ((s32) in2[8])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[8]);
+  output[18] = 2 *  ((limb) ((s32) in2[9])) * ((s32) in[9]);
+}
+
+/* Reduce a long form to a short form by taking the input mod 2^255 - 19. */
+static void freduce_degree(limb *output) {
+  /* Each of these shifts and adds ends up multiplying the value by 19. */
+  output[8] += output[18] << 4;
+  output[8] += output[18] << 1;
+  output[8] += output[18];
+  output[7] += output[17] << 4;
+  output[7] += output[17] << 1;
+  output[7] += output[17];
+  output[6] += output[16] << 4;
+  output[6] += output[16] << 1;
+  output[6] += output[16];
+  output[5] += output[15] << 4;
+  output[5] += output[15] << 1;
+  output[5] += output[15];
+  output[4] += output[14] << 4;
+  output[4] += output[14] << 1;
+  output[4] += output[14];
+  output[3] += output[13] << 4;
+  output[3] += output[13] << 1;
+  output[3] += output[13];
+  output[2] += output[12] << 4;
+  output[2] += output[12] << 1;
+  output[2] += output[12];
+  output[1] += output[11] << 4;
+  output[1] += output[11] << 1;
+  output[1] += output[11];
+  output[0] += output[10] << 4;
+  output[0] += output[10] << 1;
+  output[0] += output[10];
+}
+
+/* Reduce all coefficients of the short form input so that |x| < 2^26.
+ *
+ * On entry: |output[i]| < 2^62
+ */
+static void freduce_coefficients(limb *output) {
+  unsigned i;
+  do {
+    output[10] = 0;
+
+    for (i = 0; i < 10; i += 2) {
+      limb over = output[i] / 0x4000000l;
+      output[i+1] += over;
+      output[i] -= over * 0x4000000l;
+
+      over = output[i+1] / 0x2000000;
+      output[i+2] += over;
+      output[i+1] -= over * 0x2000000;
+    }
+    output[0] += 19 * output[10];
+  } while (output[10]);
+}
+
+/* A helpful wrapper around fproduct: output = in * in2.
+ *
+ * output must be distinct to both inputs. The output is reduced degree and
+ * reduced coefficient.
+ */
+static void
+fmul(limb *output, const limb *in, const limb *in2) {
+  limb t[19];
+  fproduct(t, in, in2);
+  freduce_degree(t);
+  freduce_coefficients(t);
+  memcpy(output, t, sizeof(limb) * 10);
+}
+
+static void fsquare_inner(limb *output, const limb *in) {
+  output[0] =       ((limb) ((s32) in[0])) * ((s32) in[0]);
+  output[1] =  2 *  ((limb) ((s32) in[0])) * ((s32) in[1]);
+  output[2] =  2 * (((limb) ((s32) in[1])) * ((s32) in[1]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[2]));
+  output[3] =  2 * (((limb) ((s32) in[1])) * ((s32) in[2]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[3]));
+  output[4] =       ((limb) ((s32) in[2])) * ((s32) in[2]) +
+               4 *  ((limb) ((s32) in[1])) * ((s32) in[3]) +
+               2 *  ((limb) ((s32) in[0])) * ((s32) in[4]);
+  output[5] =  2 * (((limb) ((s32) in[2])) * ((s32) in[3]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[4]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[5]));
+  output[6] =  2 * (((limb) ((s32) in[3])) * ((s32) in[3]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[4]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[6]) +
+               2 *  ((limb) ((s32) in[1])) * ((s32) in[5]));
+  output[7] =  2 * (((limb) ((s32) in[3])) * ((s32) in[4]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[5]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[7]));
+  output[8] =       ((limb) ((s32) in[4])) * ((s32) in[4]) +
+               2 * (((limb) ((s32) in[2])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in[1])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[5])));
+  output[9] =  2 * (((limb) ((s32) in[4])) * ((s32) in[5]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[9]));
+  output[10] = 2 * (((limb) ((s32) in[5])) * ((s32) in[5]) +
+                    ((limb) ((s32) in[4])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in[3])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[9])));
+  output[11] = 2 * (((limb) ((s32) in[5])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[4])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[9]));
+  output[12] =      ((limb) ((s32) in[6])) * ((s32) in[6]) +
+               2 * (((limb) ((s32) in[4])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in[5])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[9])));
+  output[13] = 2 * (((limb) ((s32) in[6])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[5])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[4])) * ((s32) in[9]));
+  output[14] = 2 * (((limb) ((s32) in[7])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[6])) * ((s32) in[8]) +
+               2 *  ((limb) ((s32) in[5])) * ((s32) in[9]));
+  output[15] = 2 * (((limb) ((s32) in[7])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[6])) * ((s32) in[9]));
+  output[16] =      ((limb) ((s32) in[8])) * ((s32) in[8]) +
+               4 *  ((limb) ((s32) in[7])) * ((s32) in[9]);
+  output[17] = 2 *  ((limb) ((s32) in[8])) * ((s32) in[9]);
+  output[18] = 2 *  ((limb) ((s32) in[9])) * ((s32) in[9]);
+}
+
+static void
+fsquare(limb *output, const limb *in) {
+  limb t[19];
+  fsquare_inner(t, in);
+  freduce_degree(t);
+  freduce_coefficients(t);
+  memcpy(output, t, sizeof(limb) * 10);
+}
+
+/* Take a little-endian, 32-byte number and expand it into polynomial form */
+static void
+fexpand(limb *output, const u8 *input) {
+#define F(n,start,shift,mask) \
+  output[n] = ((((limb) input[start + 0]) | \
+                ((limb) input[start + 1]) << 8 | \
+                ((limb) input[start + 2]) << 16 | \
+                ((limb) input[start + 3]) << 24) >> shift) & mask;
+  F(0, 0, 0, 0x3ffffff);
+  F(1, 3, 2, 0x1ffffff);
+  F(2, 6, 3, 0x3ffffff);
+  F(3, 9, 5, 0x1ffffff);
+  F(4, 12, 6, 0x3ffffff);
+  F(5, 16, 0, 0x1ffffff);
+  F(6, 19, 1, 0x3ffffff);
+  F(7, 22, 3, 0x1ffffff);
+  F(8, 25, 4, 0x3ffffff);
+  F(9, 28, 6, 0x1ffffff);
+#undef F
+}
+
+/* Take a fully reduced polynomial form number and contract it into a
+ * little-endian, 32-byte array
+ */
+static void
+fcontract(u8 *output, limb *input) {
+  int i;
+
+  do {
+    for (i = 0; i < 9; ++i) {
+      if ((i & 1) == 1) {
+        while (input[i] < 0) {
+          input[i] += 0x2000000;
+          input[i + 1]--;
+        }
+      } else {
+        while (input[i] < 0) {
+          input[i] += 0x4000000;
+          input[i + 1]--;
+        }
+      }
+    }
+    while (input[9] < 0) {
+      input[9] += 0x2000000;
+      input[0] -= 19;
+    }
+  } while (input[0] < 0);
+
+  input[1] <<= 2;
+  input[2] <<= 3;
+  input[3] <<= 5;
+  input[4] <<= 6;
+  input[6] <<= 1;
+  input[7] <<= 3;
+  input[8] <<= 4;
+  input[9] <<= 6;
+#define F(i, s) \
+  output[s+0] |=  input[i] & 0xff; \
+  output[s+1]  = (input[i] >> 8) & 0xff; \
+  output[s+2]  = (input[i] >> 16) & 0xff; \
+  output[s+3]  = (input[i] >> 24) & 0xff;
+  output[0] = 0;
+  output[16] = 0;
+  F(0,0);
+  F(1,3);
+  F(2,6);
+  F(3,9);
+  F(4,12);
+  F(5,16);
+  F(6,19);
+  F(7,22);
+  F(8,25);
+  F(9,28);
+#undef F
+}
+
+/* Input: Q, Q', Q-Q'
+ * Output: 2Q, Q+Q'
+ *
+ *   x2 z3: long form
+ *   x3 z3: long form
+ *   x z: short form, destroyed
+ *   xprime zprime: short form, destroyed
+ *   qmqp: short form, preserved
+ */
+static void fmonty(limb *x2, limb *z2,  /* output 2Q */
+                   limb *x3, limb *z3,  /* output Q + Q' */
+                   limb *x, limb *z,    /* input Q */
+                   limb *xprime, limb *zprime,  /* input Q' */
+                   const limb *qmqp /* input Q - Q' */) {
+  limb origx[10], origxprime[10], zzz[19], xx[19], zz[19], xxprime[19],
+        zzprime[19], zzzprime[19], xxxprime[19];
+
+  memcpy(origx, x, 10 * sizeof(limb));
+  fsum(x, z);
+  fdifference(z, origx);  // does x - z
+
+  memcpy(origxprime, xprime, sizeof(limb) * 10);
+  fsum(xprime, zprime);
+  fdifference(zprime, origxprime);
+  fproduct(xxprime, xprime, z);
+  fproduct(zzprime, x, zprime);
+  freduce_degree(xxprime);
+  freduce_coefficients(xxprime);
+  freduce_degree(zzprime);
+  freduce_coefficients(zzprime);
+  memcpy(origxprime, xxprime, sizeof(limb) * 10);
+  fsum(xxprime, zzprime);
+  fdifference(zzprime, origxprime);
+  fsquare(xxxprime, xxprime);
+  fsquare(zzzprime, zzprime);
+  fproduct(zzprime, zzzprime, qmqp);
+  freduce_degree(zzprime);
+  freduce_coefficients(zzprime);
+  memcpy(x3, xxxprime, sizeof(limb) * 10);
+  memcpy(z3, zzprime, sizeof(limb) * 10);
+
+  fsquare(xx, x);
+  fsquare(zz, z);
+  fproduct(x2, xx, zz);
+  freduce_degree(x2);
+  freduce_coefficients(x2);
+  fdifference(zz, xx);  // does zz = xx - zz
+  memset(zzz + 10, 0, sizeof(limb) * 9);
+  fscalar_product(zzz, zz, 121665);
+  freduce_degree(zzz);
+  freduce_coefficients(zzz);
+  fsum(zzz, xx);
+  fproduct(z2, zz, zzz);
+  freduce_degree(z2);
+  freduce_coefficients(z2);
+}
+
+/* Calculates nQ where Q is the x-coordinate of a point on the curve
+ *
+ *   resultx/resultz: the x coordinate of the resulting curve point (short form)
+ *   n: a little endian, 32-byte number
+ *   q: a point of the curve (short form)
+ */
+static void
+cmult(limb *resultx, limb *resultz, const u8 *n, const limb *q) {
+  limb a[19] = {0}, b[19] = {1}, c[19] = {1}, d[19] = {0};
+  limb *nqpqx = a, *nqpqz = b, *nqx = c, *nqz = d, *t;
+  limb e[19] = {0}, f[19] = {1}, g[19] = {0}, h[19] = {1};
+  limb *nqpqx2 = e, *nqpqz2 = f, *nqx2 = g, *nqz2 = h;
+
+  unsigned i, j;
+
+  memcpy(nqpqx, q, sizeof(limb) * 10);
+
+  for (i = 0; i < 32; ++i) {
+    u8 byte = n[31 - i];
+    for (j = 0; j < 8; ++j) {
+      if (byte & 0x80) {
+        fmonty(nqpqx2, nqpqz2,
+               nqx2, nqz2,
+               nqpqx, nqpqz,
+               nqx, nqz,
+               q);
+      } else {
+        fmonty(nqx2, nqz2,
+               nqpqx2, nqpqz2,
+               nqx, nqz,
+               nqpqx, nqpqz,
+               q);
+      }
+
+      t = nqx;
+      nqx = nqx2;
+      nqx2 = t;
+      t = nqz;
+      nqz = nqz2;
+      nqz2 = t;
+      t = nqpqx;
+      nqpqx = nqpqx2;
+      nqpqx2 = t;
+      t = nqpqz;
+      nqpqz = nqpqz2;
+      nqpqz2 = t;
+
+      byte <<= 1;
+    }
+  }
+
+  memcpy(resultx, nqx, sizeof(limb) * 10);
+  memcpy(resultz, nqz, sizeof(limb) * 10);
+}
+
+// -----------------------------------------------------------------------------
+// Shamelessly copied from djb's code
+// -----------------------------------------------------------------------------
+static void
+crecip(limb *out, const limb *z) {
+  limb z2[10];
+  limb z9[10];
+  limb z11[10];
+  limb z2_5_0[10];
+  limb z2_10_0[10];
+  limb z2_20_0[10];
+  limb z2_50_0[10];
+  limb z2_100_0[10];
+  limb t0[10];
+  limb t1[10];
+  int i;
+
+  /* 2 */ fsquare(z2,z);
+  /* 4 */ fsquare(t1,z2);
+  /* 8 */ fsquare(t0,t1);
+  /* 9 */ fmul(z9,t0,z);
+  /* 11 */ fmul(z11,z9,z2);
+  /* 22 */ fsquare(t0,z11);
+  /* 2^5 - 2^0 = 31 */ fmul(z2_5_0,t0,z9);
+
+  /* 2^6 - 2^1 */ fsquare(t0,z2_5_0);
+  /* 2^7 - 2^2 */ fsquare(t1,t0);
+  /* 2^8 - 2^3 */ fsquare(t0,t1);
+  /* 2^9 - 2^4 */ fsquare(t1,t0);
+  /* 2^10 - 2^5 */ fsquare(t0,t1);
+  /* 2^10 - 2^0 */ fmul(z2_10_0,t0,z2_5_0);
+
+  /* 2^11 - 2^1 */ fsquare(t0,z2_10_0);
+  /* 2^12 - 2^2 */ fsquare(t1,t0);
+  /* 2^20 - 2^10 */
+  for (i = 2;i < 10;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^20 - 2^0 */ fmul(z2_20_0,t1,z2_10_0);
+
+  /* 2^21 - 2^1 */ fsquare(t0,z2_20_0);
+  /* 2^22 - 2^2 */ fsquare(t1,t0);
+  /* 2^40 - 2^20 */
+  for (i = 2;i < 20;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^40 - 2^0 */ fmul(t0,t1,z2_20_0);
+
+  /* 2^41 - 2^1 */ fsquare(t1,t0);
+  /* 2^42 - 2^2 */ fsquare(t0,t1);
+  /* 2^50 - 2^10 */
+  for (i = 2;i < 10;i += 2) { fsquare(t1,t0); fsquare(t0,t1); }
+  /* 2^50 - 2^0 */ fmul(z2_50_0,t0,z2_10_0);
+
+  /* 2^51 - 2^1 */ fsquare(t0,z2_50_0);
+  /* 2^52 - 2^2 */ fsquare(t1,t0);
+  /* 2^100 - 2^50 */
+  for (i = 2;i < 50;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^100 - 2^0 */ fmul(z2_100_0,t1,z2_50_0);
+
+  /* 2^101 - 2^1 */ fsquare(t1,z2_100_0);
+  /* 2^102 - 2^2 */ fsquare(t0,t1);
+  /* 2^200 - 2^100 */
+  for (i = 2;i < 100;i += 2) { fsquare(t1,t0); fsquare(t0,t1); }
+  /* 2^200 - 2^0 */ fmul(t1,t0,z2_100_0);
+
+  /* 2^201 - 2^1 */ fsquare(t0,t1);
+  /* 2^202 - 2^2 */ fsquare(t1,t0);
+  /* 2^250 - 2^50 */
+  for (i = 2;i < 50;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^250 - 2^0 */ fmul(t0,t1,z2_50_0);
+
+  /* 2^251 - 2^1 */ fsquare(t1,t0);
+  /* 2^252 - 2^2 */ fsquare(t0,t1);
+  /* 2^253 - 2^3 */ fsquare(t1,t0);
+  /* 2^254 - 2^4 */ fsquare(t0,t1);
+  /* 2^255 - 2^5 */ fsquare(t1,t0);
+  /* 2^255 - 21 */ fmul(out,t1,z11);
+}
+
+int
+curve25519_donna(u8 *mypublic, const u8 *secret, const u8 *basepoint) {
+  limb bp[10], x[10], z[10], zmone[10];
+  uint8_t e[32];
+  int i;
+
+  for (i = 0; i < 32; ++i) e[i] = secret[i];
+  e[0] &= 248;
+  e[31] &= 127;
+  e[31] |= 64;
+
+  fexpand(bp, basepoint);
+  cmult(x, z, e, bp);
+  crecip(zmone, z);
+  fmul(z, x, zmone);
+  fcontract(mypublic, z);
+  return 0;
+}
diff --git a/crypto/curve25519.cc b/crypto/curve25519.cc
new file mode 100644
index 0000000..3346df9
--- /dev/null
+++ b/crypto/curve25519.cc
@@ -0,0 +1,36 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/curve25519.h"
+
+// Curve25519 is specified in terms of byte strings, not numbers, so all
+// implementations take and return the same sequence of bits. So the byte
+// order is implicitly specified as in, say, SHA1.
+//
+// Prototype for |curve25519_donna| function in
+// third_party/curve25519-donna/curve25519-donna.c
+extern "C" int curve25519_donna(uint8*, const uint8*, const uint8*);
+
+namespace crypto {
+
+namespace curve25519 {
+
+void ScalarMult(const uint8* private_key,
+                const uint8* peer_public_key,
+                uint8* shared_key) {
+  curve25519_donna(shared_key, private_key, peer_public_key);
+}
+
+// kBasePoint is the base point (generator) of the elliptic curve group.
+// It is little-endian version of '9' followed by 31 zeros.
+// See "Computing public keys" section of http://cr.yp.to/ecdh.html.
+static const unsigned char kBasePoint[32] = {9};
+
+void ScalarBaseMult(const uint8* private_key, uint8* public_key) {
+  curve25519_donna(public_key, private_key, kBasePoint);
+}
+
+}  // namespace curve25519
+
+}  // namespace crypto
diff --git a/crypto/curve25519.h b/crypto/curve25519.h
new file mode 100644
index 0000000..ba24c92
--- /dev/null
+++ b/crypto/curve25519.h
@@ -0,0 +1,48 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_CURVE25519_H
+#define CRYPTO_CURVE25519_H
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Curve25519 implements the elliptic curve group known as Curve25519, as
+// described in "Curve 25519: new Diffie-Hellman Speed Records",
+// by D.J. Bernstein. Additional information is available at
+// http://cr.yp.to/ecdh.html.
+namespace curve25519 {
+
+// kBytes is the number of bytes in the result of the Diffie-Hellman operation,
+// which is an element of GF(2^255-19).
+static const size_t kBytes = 32;
+
+// kScalarBytes is the number of bytes in an element of the scalar field:
+// GF(2^252 + 27742317777372353535851937790883648493).
+static const size_t kScalarBytes = 32;
+
+// ScalarMult computes the |shared_key| from |private_key| and
+// |peer_public_key|. This method is a wrapper for |curve25519_donna()|. It
+// calls that function with |private_key| as |secret| and |peer_public_key| as
+// basepoint. |private_key| should be of length |kScalarBytes| and
+// |peer_public_key| should be of length |kBytes|.
+// See "Computing shared secrets" section of/ http://cr.yp.to/ecdh.html.
+CRYPTO_EXPORT void ScalarMult(const uint8* private_key,
+                              const uint8* peer_public_key,
+                              uint8* shared_key);
+
+// ScalarBaseMult computes the |public_key| from |private_key|. This method is a
+// wrapper for |curve25519_donna()|. It calls that function with |private_key|
+// as |secret| and |kBasePoint| as basepoint. |private_key| should be of length
+// |kScalarBytes|. See "Computing public keys" section of
+// http://cr.yp.to/ecdh.html.
+CRYPTO_EXPORT void ScalarBaseMult(const uint8* private_key, uint8* public_key);
+
+}  // namespace curve25519
+
+}  // namespace crypto
+
+#endif  // CRYPTO_CURVE25519_H
diff --git a/crypto/curve25519_unittest.cc b/crypto/curve25519_unittest.cc
new file mode 100644
index 0000000..0ddc422
--- /dev/null
+++ b/crypto/curve25519_unittest.cc
@@ -0,0 +1,44 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/curve25519.h"
+
+#include <string>
+
+#include "crypto/random.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+// Test that the basic shared key exchange identity holds: that both parties end
+// up with the same shared key. This test starts with a fixed private key for
+// two parties: alice and bob. Runs ScalarBaseMult and ScalarMult to compute
+// public key and shared key for alice and bob. It asserts that alice and bob
+// have the same shared key.
+TEST(Curve25519, SharedKeyIdentity) {
+  uint8 alice_private_key[curve25519::kScalarBytes] = {3};
+  uint8 bob_private_key[curve25519::kScalarBytes] = {5};
+
+  // Get public key for alice and bob.
+  uint8 alice_public_key[curve25519::kBytes];
+  curve25519::ScalarBaseMult(alice_private_key, alice_public_key);
+
+  uint8 bob_public_key[curve25519::kBytes];
+  curve25519::ScalarBaseMult(bob_private_key, bob_public_key);
+
+  // Get the shared key for alice, by using alice's private key and bob's
+  // public key.
+  uint8 alice_shared_key[curve25519::kBytes];
+  curve25519::ScalarMult(alice_private_key, bob_public_key, alice_shared_key);
+
+  // Get the shared key for bob, by using bob's private key and alice's public
+  // key.
+  uint8 bob_shared_key[curve25519::kBytes];
+  curve25519::ScalarMult(bob_private_key, alice_public_key, bob_shared_key);
+
+  // Computed shared key of alice and bob should be the same.
+  ASSERT_EQ(0, memcmp(alice_shared_key, bob_shared_key, curve25519::kBytes));
+}
+
+}  // namespace crypto
diff --git a/crypto/ec_private_key.h b/crypto/ec_private_key.h
new file mode 100644
index 0000000..9fd8ffd
--- /dev/null
+++ b/crypto/ec_private_key.h
@@ -0,0 +1,157 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_EC_PRIVATE_KEY_H_
+#define CRYPTO_EC_PRIVATE_KEY_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "build/build_config.h"
+#include "crypto/crypto_export.h"
+
+#if defined(USE_OPENSSL)
+// Forward declaration for openssl/*.h
+typedef struct evp_pkey_st EVP_PKEY;
+#else
+// Forward declaration.
+typedef struct CERTSubjectPublicKeyInfoStr CERTSubjectPublicKeyInfo;
+typedef struct PK11SlotInfoStr PK11SlotInfo;
+typedef struct SECKEYPrivateKeyStr SECKEYPrivateKey;
+typedef struct SECKEYPublicKeyStr SECKEYPublicKey;
+#endif
+
+namespace crypto {
+
+// Encapsulates an elliptic curve (EC) private key. Can be used to generate new
+// keys, export keys to other formats, or to extract a public key.
+// TODO(mattm): make this and RSAPrivateKey implement some PrivateKey interface.
+// (The difference in types of key() and public_key() make this a little
+// tricky.)
+class CRYPTO_EXPORT ECPrivateKey {
+ public:
+  ~ECPrivateKey();
+
+  // Returns whether the system supports elliptic curve cryptography.
+  static bool IsSupported();
+
+  // Creates a new random instance. Can return NULL if initialization fails.
+  // The created key will use the NIST P-256 curve.
+  // TODO(mattm): Add a curve parameter.
+  static ECPrivateKey* Create();
+
+#if defined(USE_NSS)
+  // Creates a new random instance in |slot|. Can return NULL if initialization
+  // fails.  The created key is permanent and is not exportable in plaintext
+  // form.
+  static ECPrivateKey* CreateSensitive(PK11SlotInfo* slot);
+#endif
+
+  // Creates a new instance by importing an existing key pair.
+  // The key pair is given as an ASN.1-encoded PKCS #8 EncryptedPrivateKeyInfo
+  // block and an X.509 SubjectPublicKeyInfo block.
+  // Returns NULL if initialization fails.
+  static ECPrivateKey* CreateFromEncryptedPrivateKeyInfo(
+      const std::string& password,
+      const std::vector<uint8>& encrypted_private_key_info,
+      const std::vector<uint8>& subject_public_key_info);
+
+#if defined(USE_NSS)
+  // Creates a new instance in |slot| by importing an existing key pair.
+  // The key pair is given as an ASN.1-encoded PKCS #8 EncryptedPrivateKeyInfo
+  // block and an X.509 SubjectPublicKeyInfo block.
+  // This can return NULL if initialization fails.  The created key is permanent
+  // and is not exportable in plaintext form.
+  static ECPrivateKey* CreateSensitiveFromEncryptedPrivateKeyInfo(
+      PK11SlotInfo* slot,
+      const std::string& password,
+      const std::vector<uint8>& encrypted_private_key_info,
+      const std::vector<uint8>& subject_public_key_info);
+#endif
+
+#if !defined(USE_OPENSSL)
+  // Imports the key pair into |slot| and returns in |public_key| and |key|.
+  // Shortcut for code that needs to keep a reference directly to NSS types
+  // without having to create a ECPrivateKey object and make a copy of them.
+  // TODO(mattm): move this function to some NSS util file.
+  static bool ImportFromEncryptedPrivateKeyInfo(
+      PK11SlotInfo* slot,
+      const std::string& password,
+      const uint8* encrypted_private_key_info,
+      size_t encrypted_private_key_info_len,
+      CERTSubjectPublicKeyInfo* decoded_spki,
+      bool permanent,
+      bool sensitive,
+      SECKEYPrivateKey** key,
+      SECKEYPublicKey** public_key);
+
+  // Returns a copy of the object.
+  ECPrivateKey* Copy() const;
+#endif
+
+#if defined(USE_OPENSSL)
+  EVP_PKEY* key() { return key_; }
+#else
+  SECKEYPrivateKey* key() { return key_; }
+  SECKEYPublicKey* public_key() { return public_key_; }
+#endif
+
+  // Exports the private key as an ASN.1-encoded PKCS #8 EncryptedPrivateKeyInfo
+  // block and the public key as an X.509 SubjectPublicKeyInfo block.
+  // The |password| and |iterations| are used as inputs to the key derivation
+  // function for generating the encryption key.  PKCS #5 recommends a minimum
+  // of 1000 iterations, on modern systems a larger value may be preferrable.
+  bool ExportEncryptedPrivateKey(const std::string& password,
+                                 int iterations,
+                                 std::vector<uint8>* output);
+
+  // Exports the public key to an X.509 SubjectPublicKeyInfo block.
+  bool ExportPublicKey(std::vector<uint8>* output);
+
+  // Exports the public key as an EC point in the uncompressed point format.
+  bool ExportRawPublicKey(std::string* output);
+
+  // Exports private key data for testing. The format of data stored into output
+  // doesn't matter other than that it is consistent for the same key.
+  bool ExportValue(std::vector<uint8>* output);
+  bool ExportECParams(std::vector<uint8>* output);
+
+ private:
+  // Constructor is private. Use one of the Create*() methods above instead.
+  ECPrivateKey();
+
+#if !defined(USE_OPENSSL)
+  // Shared helper for Create() and CreateSensitive().
+  // TODO(cmasone): consider replacing |permanent| and |sensitive| with a
+  //                flags arg created by ORing together some enumerated values.
+  static ECPrivateKey* CreateWithParams(PK11SlotInfo* slot,
+                                        bool permanent,
+                                        bool sensitive);
+
+  // Shared helper for CreateFromEncryptedPrivateKeyInfo() and
+  // CreateSensitiveFromEncryptedPrivateKeyInfo().
+  static ECPrivateKey* CreateFromEncryptedPrivateKeyInfoWithParams(
+      PK11SlotInfo* slot,
+      const std::string& password,
+      const std::vector<uint8>& encrypted_private_key_info,
+      const std::vector<uint8>& subject_public_key_info,
+      bool permanent,
+      bool sensitive);
+#endif
+
+#if defined(USE_OPENSSL)
+  EVP_PKEY* key_;
+#else
+  SECKEYPrivateKey* key_;
+  SECKEYPublicKey* public_key_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(ECPrivateKey);
+};
+
+
+}  // namespace crypto
+
+#endif  // CRYPTO_EC_PRIVATE_KEY_H_
diff --git a/crypto/ec_private_key_nss.cc b/crypto/ec_private_key_nss.cc
new file mode 100644
index 0000000..b38c396
--- /dev/null
+++ b/crypto/ec_private_key_nss.cc
@@ -0,0 +1,405 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_private_key.h"
+
+extern "C" {
+// Work around NSS missing SEC_BEGIN_PROTOS in secmodt.h.  This must come before
+// other NSS headers.
+#include <secmodt.h>
+}
+
+#include <cryptohi.h>
+#include <keyhi.h>
+#include <pk11pub.h>
+#include <secmod.h>
+
+#include "base/lazy_instance.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/nss_util.h"
+#include "crypto/nss_util_internal.h"
+#include "crypto/scoped_nss_types.h"
+#include "crypto/third_party/nss/chromium-nss.h"
+
+namespace {
+
+PK11SlotInfo* GetTempKeySlot() {
+  return PK11_GetInternalSlot();
+}
+
+class EllipticCurveSupportChecker {
+ public:
+  EllipticCurveSupportChecker() {
+    // NOTE: we can do this check here only because we use the NSS internal
+    // slot.  If we support other slots in the future, checking whether they
+    // support ECDSA may block NSS, and the value may also change as devices are
+    // inserted/removed, so we would need to re-check on every use.
+    crypto::EnsureNSSInit();
+    crypto::ScopedPK11Slot slot(GetTempKeySlot());
+    supported_ = PK11_DoesMechanism(slot.get(), CKM_EC_KEY_PAIR_GEN) &&
+        PK11_DoesMechanism(slot.get(), CKM_ECDSA);
+  }
+
+  bool Supported() {
+    return supported_;
+  }
+
+ private:
+  bool supported_;
+};
+
+static base::LazyInstance<EllipticCurveSupportChecker>::Leaky
+    g_elliptic_curve_supported = LAZY_INSTANCE_INITIALIZER;
+
+// Copied from rsa_private_key_nss.cc.
+static bool ReadAttribute(SECKEYPrivateKey* key,
+                          CK_ATTRIBUTE_TYPE type,
+                          std::vector<uint8>* output) {
+  SECItem item;
+  SECStatus rv;
+  rv = PK11_ReadRawAttribute(PK11_TypePrivKey, key, type, &item);
+  if (rv != SECSuccess) {
+    DLOG(ERROR) << "PK11_ReadRawAttribute: " << PORT_GetError();
+    return false;
+  }
+
+  output->assign(item.data, item.data + item.len);
+  SECITEM_FreeItem(&item, PR_FALSE);
+  return true;
+}
+
+}  // namespace
+
+namespace crypto {
+
+ECPrivateKey::~ECPrivateKey() {
+  if (key_)
+    SECKEY_DestroyPrivateKey(key_);
+  if (public_key_)
+    SECKEY_DestroyPublicKey(public_key_);
+}
+
+// static
+bool ECPrivateKey::IsSupported() {
+  return g_elliptic_curve_supported.Get().Supported();
+}
+
+// static
+ECPrivateKey* ECPrivateKey::Create() {
+  EnsureNSSInit();
+
+  ScopedPK11Slot slot(GetTempKeySlot());
+  return CreateWithParams(slot.get(),
+                          false /* not permanent */,
+                          false /* not sensitive */);
+}
+
+#if defined(USE_NSS)
+// static
+ECPrivateKey* ECPrivateKey::CreateSensitive(PK11SlotInfo* slot) {
+  return CreateWithParams(
+      slot, true /* permanent */, true /* sensitive */);
+}
+#endif
+
+// static
+ECPrivateKey* ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+    const std::string& password,
+    const std::vector<uint8>& encrypted_private_key_info,
+    const std::vector<uint8>& subject_public_key_info) {
+  EnsureNSSInit();
+
+  ScopedPK11Slot slot(GetTempKeySlot());
+  return CreateFromEncryptedPrivateKeyInfoWithParams(
+      slot.get(),
+      password,
+      encrypted_private_key_info,
+      subject_public_key_info,
+      false /* not permanent */,
+      false /* not sensitive */);
+}
+
+#if defined(USE_NSS)
+// static
+ECPrivateKey* ECPrivateKey::CreateSensitiveFromEncryptedPrivateKeyInfo(
+    PK11SlotInfo* slot,
+    const std::string& password,
+    const std::vector<uint8>& encrypted_private_key_info,
+    const std::vector<uint8>& subject_public_key_info) {
+  return CreateFromEncryptedPrivateKeyInfoWithParams(
+      slot,
+      password,
+      encrypted_private_key_info,
+      subject_public_key_info,
+      true /* permanent */,
+      true /* sensitive */);
+}
+#endif
+
+// static
+bool ECPrivateKey::ImportFromEncryptedPrivateKeyInfo(
+    PK11SlotInfo* slot,
+    const std::string& password,
+    const uint8* encrypted_private_key_info,
+    size_t encrypted_private_key_info_len,
+    CERTSubjectPublicKeyInfo* decoded_spki,
+    bool permanent,
+    bool sensitive,
+    SECKEYPrivateKey** key,
+    SECKEYPublicKey** public_key) {
+  if (!slot)
+    return false;
+
+  *public_key = SECKEY_ExtractPublicKey(decoded_spki);
+
+  if (!*public_key) {
+    DLOG(ERROR) << "SECKEY_ExtractPublicKey: " << PORT_GetError();
+    return false;
+  }
+
+  if (SECKEY_GetPublicKeyType(*public_key) != ecKey) {
+    DLOG(ERROR) << "The public key is not an EC key";
+    SECKEY_DestroyPublicKey(*public_key);
+    *public_key = NULL;
+    return false;
+  }
+
+  SECItem encoded_epki = {
+    siBuffer,
+    const_cast<unsigned char*>(encrypted_private_key_info),
+    static_cast<unsigned>(encrypted_private_key_info_len)
+  };
+  SECKEYEncryptedPrivateKeyInfo epki;
+  memset(&epki, 0, sizeof(epki));
+
+  ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
+
+  SECStatus rv = SEC_QuickDERDecodeItem(
+      arena.get(),
+      &epki,
+      SEC_ASN1_GET(SECKEY_EncryptedPrivateKeyInfoTemplate),
+      &encoded_epki);
+  if (rv != SECSuccess) {
+    DLOG(ERROR) << "SEC_QuickDERDecodeItem: " << PORT_GetError();
+    SECKEY_DestroyPublicKey(*public_key);
+    *public_key = NULL;
+    return false;
+  }
+
+  SECItem password_item = {
+    siBuffer,
+    reinterpret_cast<unsigned char*>(const_cast<char*>(password.data())),
+    static_cast<unsigned>(password.size())
+  };
+
+  rv = ImportEncryptedECPrivateKeyInfoAndReturnKey(
+      slot,
+      &epki,
+      &password_item,
+      NULL,  // nickname
+      &(*public_key)->u.ec.publicValue,
+      permanent,
+      sensitive,
+      key,
+      NULL);  // wincx
+  if (rv != SECSuccess) {
+    DLOG(ERROR) << "ImportEncryptedECPrivateKeyInfoAndReturnKey: "
+                << PORT_GetError();
+    SECKEY_DestroyPublicKey(*public_key);
+    *public_key = NULL;
+    return false;
+  }
+
+  return true;
+}
+
+ECPrivateKey* ECPrivateKey::Copy() const {
+  scoped_ptr<ECPrivateKey> copy(new ECPrivateKey);
+  if (key_) {
+    copy->key_ = SECKEY_CopyPrivateKey(key_);
+    if (!copy->key_)
+      return NULL;
+  }
+  if (public_key_) {
+    copy->public_key_ = SECKEY_CopyPublicKey(public_key_);
+    if (!copy->public_key_)
+      return NULL;
+  }
+  return copy.release();
+}
+
+bool ECPrivateKey::ExportEncryptedPrivateKey(
+    const std::string& password,
+    int iterations,
+    std::vector<uint8>* output) {
+  // We export as an EncryptedPrivateKeyInfo bundle instead of a plain PKCS #8
+  // PrivateKeyInfo because PK11_ImportDERPrivateKeyInfoAndReturnKey doesn't
+  // support EC keys.
+  // https://bugzilla.mozilla.org/show_bug.cgi?id=327773
+  SECItem password_item = {
+    siBuffer,
+    reinterpret_cast<unsigned char*>(const_cast<char*>(password.data())),
+    static_cast<unsigned>(password.size())
+  };
+
+  SECKEYEncryptedPrivateKeyInfo* encrypted = PK11_ExportEncryptedPrivKeyInfo(
+      NULL,  // Slot, optional.
+      SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_3KEY_TRIPLE_DES_CBC,
+      &password_item,
+      key_,
+      iterations,
+      NULL);  // wincx.
+
+  if (!encrypted) {
+    DLOG(ERROR) << "PK11_ExportEncryptedPrivKeyInfo: " << PORT_GetError();
+    return false;
+  }
+
+  ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
+  SECItem der_key = {siBuffer, NULL, 0};
+  SECItem* encoded_item = SEC_ASN1EncodeItem(
+      arena.get(),
+      &der_key,
+      encrypted,
+      SEC_ASN1_GET(SECKEY_EncryptedPrivateKeyInfoTemplate));
+  SECKEY_DestroyEncryptedPrivateKeyInfo(encrypted, PR_TRUE);
+  if (!encoded_item) {
+    DLOG(ERROR) << "SEC_ASN1EncodeItem: " << PORT_GetError();
+    return false;
+  }
+
+  output->assign(der_key.data, der_key.data + der_key.len);
+
+  return true;
+}
+
+bool ECPrivateKey::ExportPublicKey(std::vector<uint8>* output) {
+  ScopedSECItem der_pubkey(
+      SECKEY_EncodeDERSubjectPublicKeyInfo(public_key_));
+  if (!der_pubkey.get()) {
+    return false;
+  }
+
+  output->assign(der_pubkey->data, der_pubkey->data + der_pubkey->len);
+  return true;
+}
+
+bool ECPrivateKey::ExportRawPublicKey(std::string* output) {
+  // public_key_->u.ec.publicValue is an ANSI X9.62 public key which, for
+  // a P-256 key, is 0x04 (meaning uncompressed) followed by the x and y field
+  // elements as 32-byte, big-endian numbers.
+  static const unsigned int kExpectedKeyLength = 65;
+
+  CHECK_EQ(ecKey, SECKEY_GetPublicKeyType(public_key_));
+  const unsigned char* const data = public_key_->u.ec.publicValue.data;
+  const unsigned int len = public_key_->u.ec.publicValue.len;
+  if (len != kExpectedKeyLength || data[0] != 0x04)
+    return false;
+
+  output->assign(reinterpret_cast<const char*>(data + 1),
+                 kExpectedKeyLength - 1);
+  return true;
+}
+
+bool ECPrivateKey::ExportValue(std::vector<uint8>* output) {
+  return ReadAttribute(key_, CKA_VALUE, output);
+}
+
+bool ECPrivateKey::ExportECParams(std::vector<uint8>* output) {
+  return ReadAttribute(key_, CKA_EC_PARAMS, output);
+}
+
+ECPrivateKey::ECPrivateKey() : key_(NULL), public_key_(NULL) {}
+
+// static
+ECPrivateKey* ECPrivateKey::CreateWithParams(PK11SlotInfo* slot,
+                                             bool permanent,
+                                             bool sensitive) {
+  if (!slot)
+    return NULL;
+
+  scoped_ptr<ECPrivateKey> result(new ECPrivateKey);
+
+  SECOidData* oid_data = SECOID_FindOIDByTag(SEC_OID_SECG_EC_SECP256R1);
+  if (!oid_data) {
+    DLOG(ERROR) << "SECOID_FindOIDByTag: " << PORT_GetError();
+    return NULL;
+  }
+
+  // SECKEYECParams is a SECItem containing the DER encoded ASN.1 ECParameters
+  // value.  For a named curve, that is just the OBJECT IDENTIFIER of the curve.
+  // In addition to the oid data, the encoding requires one byte for the ASN.1
+  // tag and one byte for the length (assuming the length is <= 127).
+  DCHECK_LE(oid_data->oid.len, 127U);
+  std::vector<unsigned char> parameters_buf(2 + oid_data->oid.len);
+  SECKEYECParams ec_parameters = {
+    siDEROID, &parameters_buf[0],
+    static_cast<unsigned>(parameters_buf.size())
+  };
+
+  ec_parameters.data[0] = SEC_ASN1_OBJECT_ID;
+  ec_parameters.data[1] = oid_data->oid.len;
+  memcpy(ec_parameters.data + 2, oid_data->oid.data, oid_data->oid.len);
+
+  result->key_ = PK11_GenerateKeyPair(slot,
+                                      CKM_EC_KEY_PAIR_GEN,
+                                      &ec_parameters,
+                                      &result->public_key_,
+                                      permanent,
+                                      sensitive,
+                                      NULL);
+  if (!result->key_) {
+    DLOG(ERROR) << "PK11_GenerateKeyPair: " << PORT_GetError();
+    return NULL;
+  }
+  CHECK_EQ(ecKey, SECKEY_GetPublicKeyType(result->public_key_));
+
+  return result.release();
+}
+
+// static
+ECPrivateKey* ECPrivateKey::CreateFromEncryptedPrivateKeyInfoWithParams(
+    PK11SlotInfo* slot,
+    const std::string& password,
+    const std::vector<uint8>& encrypted_private_key_info,
+    const std::vector<uint8>& subject_public_key_info,
+    bool permanent,
+    bool sensitive) {
+  scoped_ptr<ECPrivateKey> result(new ECPrivateKey);
+
+  SECItem encoded_spki = {
+    siBuffer,
+    const_cast<unsigned char*>(&subject_public_key_info[0]),
+    static_cast<unsigned>(subject_public_key_info.size())
+  };
+  CERTSubjectPublicKeyInfo* decoded_spki = SECKEY_DecodeDERSubjectPublicKeyInfo(
+      &encoded_spki);
+  if (!decoded_spki) {
+    DLOG(ERROR) << "SECKEY_DecodeDERSubjectPublicKeyInfo: " << PORT_GetError();
+    return NULL;
+  }
+
+  bool success = ImportFromEncryptedPrivateKeyInfo(
+      slot,
+      password,
+      &encrypted_private_key_info[0],
+      encrypted_private_key_info.size(),
+      decoded_spki,
+      permanent,
+      sensitive,
+      &result->key_,
+      &result->public_key_);
+
+  SECKEY_DestroySubjectPublicKeyInfo(decoded_spki);
+
+  if (success) {
+    CHECK_EQ(ecKey, SECKEY_GetPublicKeyType(result->public_key_));
+    return result.release();
+  }
+
+  return NULL;
+}
+
+}  // namespace crypto
diff --git a/crypto/ec_private_key_openssl.cc b/crypto/ec_private_key_openssl.cc
new file mode 100644
index 0000000..2d44759
--- /dev/null
+++ b/crypto/ec_private_key_openssl.cc
@@ -0,0 +1,231 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_private_key.h"
+
+#include <openssl/ec.h>
+#include <openssl/evp.h>
+#include <openssl/pkcs12.h>
+#include <openssl/x509.h>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/openssl_util.h"
+#include "crypto/scoped_openssl_types.h"
+
+namespace crypto {
+
+namespace {
+
+// Function pointer definition, for injecting the required key export function
+// into ExportKeyWithBio, below. |bio| is a temporary memory BIO object, and
+// |key| is a handle to the input key object. Return 1 on success, 0 otherwise.
+// NOTE: Used with OpenSSL functions, which do not comply with the Chromium
+//       style guide, hence the unusual parameter placement / types.
+typedef int (*ExportBioFunction)(BIO* bio, const void* key);
+
+typedef ScopedOpenSSL<PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_free>::Type
+    ScopedPKCS8_PRIV_KEY_INFO;
+typedef ScopedOpenSSL<X509_SIG, X509_SIG_free>::Type ScopedX509_SIG;
+
+// Helper to export |key| into |output| via the specified ExportBioFunction.
+bool ExportKeyWithBio(const void* key,
+                      ExportBioFunction export_fn,
+                      std::vector<uint8>* output) {
+  if (!key)
+    return false;
+
+  ScopedBIO bio(BIO_new(BIO_s_mem()));
+  if (!bio.get())
+    return false;
+
+  if (!export_fn(bio.get(), key))
+    return false;
+
+  char* data = NULL;
+  long len = BIO_get_mem_data(bio.get(), &data);
+  if (!data || len < 0)
+    return false;
+
+  output->assign(data, data + len);
+  return true;
+}
+
+// Function pointer definition, for injecting the required key export function
+// into ExportKey below. |key| is a pointer to the input key object,
+// and |data| is either NULL, or the address of an 'unsigned char*' pointer
+// that points to the start of the output buffer. The function must return
+// the number of bytes required to export the data, or -1 in case of error.
+typedef int (*ExportDataFunction)(const void* key, unsigned char** data);
+
+// Helper to export |key| into |output| via the specified export function.
+bool ExportKey(const void* key,
+               ExportDataFunction export_fn,
+               std::vector<uint8>* output) {
+  if (!key)
+    return false;
+
+  int data_len = export_fn(key, NULL);
+  if (data_len < 0)
+    return false;
+
+  output->resize(static_cast<size_t>(data_len));
+  unsigned char* data = &(*output)[0];
+  if (export_fn(key, &data) < 0)
+    return false;
+
+  return true;
+}
+
+}  // namespace
+
+ECPrivateKey::~ECPrivateKey() {
+  if (key_)
+    EVP_PKEY_free(key_);
+}
+
+// static
+bool ECPrivateKey::IsSupported() { return true; }
+
+// static
+ECPrivateKey* ECPrivateKey::Create() {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+
+  ScopedEC_KEY ec_key(EC_KEY_new_by_curve_name(NID_X9_62_prime256v1));
+  if (!ec_key.get() || !EC_KEY_generate_key(ec_key.get()))
+    return NULL;
+
+  scoped_ptr<ECPrivateKey> result(new ECPrivateKey());
+  result->key_ = EVP_PKEY_new();
+  if (!result->key_ || !EVP_PKEY_set1_EC_KEY(result->key_, ec_key.get()))
+    return NULL;
+
+  CHECK_EQ(EVP_PKEY_EC, EVP_PKEY_type(result->key_->type));
+  return result.release();
+}
+
+// static
+ECPrivateKey* ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+    const std::string& password,
+    const std::vector<uint8>& encrypted_private_key_info,
+    const std::vector<uint8>& subject_public_key_info) {
+  // NOTE: The |subject_public_key_info| can be ignored here, it is only
+  // useful for the NSS implementation (which uses the public key's SHA1
+  // as a lookup key when storing the private one in its store).
+  if (encrypted_private_key_info.empty())
+    return NULL;
+
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+
+  const uint8_t* data = &encrypted_private_key_info[0];
+  const uint8_t* ptr = data;
+  ScopedX509_SIG p8_encrypted(
+      d2i_X509_SIG(NULL, &ptr, encrypted_private_key_info.size()));
+  if (!p8_encrypted || ptr != data + encrypted_private_key_info.size())
+    return NULL;
+
+  ScopedPKCS8_PRIV_KEY_INFO p8_decrypted;
+  if (password.empty()) {
+    // Hack for reading keys generated by an older version of the OpenSSL
+    // code. OpenSSL used to use "\0\0" rather than the empty string because it
+    // would treat the password as an ASCII string to be converted to UCS-2
+    // while NSS used a byte string.
+    p8_decrypted.reset(PKCS8_decrypt_pbe(
+        p8_encrypted.get(), reinterpret_cast<const uint8_t*>("\0\0"), 2));
+  }
+  if (!p8_decrypted) {
+    p8_decrypted.reset(PKCS8_decrypt_pbe(
+        p8_encrypted.get(),
+        reinterpret_cast<const uint8_t*>(password.data()),
+        password.size()));
+  }
+
+  if (!p8_decrypted)
+    return NULL;
+
+  // Create a new EVP_PKEY for it.
+  scoped_ptr<ECPrivateKey> result(new ECPrivateKey);
+  result->key_ = EVP_PKCS82PKEY(p8_decrypted.get());
+  if (!result->key_ || EVP_PKEY_type(result->key_->type) != EVP_PKEY_EC)
+    return NULL;
+
+  return result.release();
+}
+
+bool ECPrivateKey::ExportEncryptedPrivateKey(
+    const std::string& password,
+    int iterations,
+    std::vector<uint8>* output) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  // Convert into a PKCS#8 object.
+  ScopedPKCS8_PRIV_KEY_INFO pkcs8(EVP_PKEY2PKCS8(key_));
+  if (!pkcs8.get())
+    return false;
+
+  // Encrypt the object.
+  // NOTE: NSS uses SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_3KEY_TRIPLE_DES_CBC
+  // so use NID_pbe_WithSHA1And3_Key_TripleDES_CBC which should be the OpenSSL
+  // equivalent.
+  ScopedX509_SIG encrypted(PKCS8_encrypt_pbe(
+      NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
+      reinterpret_cast<const uint8_t*>(password.data()),
+      password.size(),
+      NULL,
+      0,
+      iterations,
+      pkcs8.get()));
+  if (!encrypted.get())
+    return false;
+
+  // Write it into |*output|
+  return ExportKeyWithBio(encrypted.get(),
+                          reinterpret_cast<ExportBioFunction>(i2d_PKCS8_bio),
+                          output);
+}
+
+bool ECPrivateKey::ExportPublicKey(std::vector<uint8>* output) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  return ExportKeyWithBio(
+      key_, reinterpret_cast<ExportBioFunction>(i2d_PUBKEY_bio), output);
+}
+
+bool ECPrivateKey::ExportRawPublicKey(std::string* output) {
+  // i2d_PublicKey will produce an ANSI X9.62 public key which, for a P-256
+  // key, is 0x04 (meaning uncompressed) followed by the x and y field
+  // elements as 32-byte, big-endian numbers.
+  static const int kExpectedKeyLength = 65;
+
+  int len = i2d_PublicKey(key_, NULL);
+  if (len != kExpectedKeyLength)
+    return false;
+
+  uint8 buf[kExpectedKeyLength];
+  uint8* derp = buf;
+  len = i2d_PublicKey(key_, &derp);
+  if (len != kExpectedKeyLength)
+    return false;
+
+  output->assign(reinterpret_cast<char*>(buf + 1), kExpectedKeyLength - 1);
+  return true;
+}
+
+bool ECPrivateKey::ExportValue(std::vector<uint8>* output) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  ScopedEC_KEY ec_key(EVP_PKEY_get1_EC_KEY(key_));
+  return ExportKey(ec_key.get(),
+                   reinterpret_cast<ExportDataFunction>(i2d_ECPrivateKey),
+                   output);
+}
+
+bool ECPrivateKey::ExportECParams(std::vector<uint8>* output) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  ScopedEC_KEY ec_key(EVP_PKEY_get1_EC_KEY(key_));
+  return ExportKey(ec_key.get(),
+                   reinterpret_cast<ExportDataFunction>(i2d_ECParameters),
+                   output);
+}
+
+ECPrivateKey::ECPrivateKey() : key_(NULL) {}
+
+}  // namespace crypto
diff --git a/crypto/ec_private_key_unittest.cc b/crypto/ec_private_key_unittest.cc
new file mode 100644
index 0000000..6993a20
--- /dev/null
+++ b/crypto/ec_private_key_unittest.cc
@@ -0,0 +1,296 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_private_key.h"
+
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// Generate random private keys. Export, then re-import. We should get
+// back the same exact public key, and the private key should have the same
+// value and elliptic curve params.
+TEST(ECPrivateKeyUnitTest, InitRandomTest) {
+  const std::string password1;
+  const std::string password2 = "test";
+
+  scoped_ptr<crypto::ECPrivateKey> keypair1(crypto::ECPrivateKey::Create());
+  scoped_ptr<crypto::ECPrivateKey> keypair2(crypto::ECPrivateKey::Create());
+  ASSERT_TRUE(keypair1.get());
+  ASSERT_TRUE(keypair2.get());
+
+  std::vector<uint8> key1value;
+  std::vector<uint8> key2value;
+  std::vector<uint8> key1params;
+  std::vector<uint8> key2params;
+  EXPECT_TRUE(keypair1->ExportValue(&key1value));
+  EXPECT_TRUE(keypair2->ExportValue(&key2value));
+  EXPECT_TRUE(keypair1->ExportECParams(&key1params));
+  EXPECT_TRUE(keypair2->ExportECParams(&key2params));
+
+  std::vector<uint8> privkey1;
+  std::vector<uint8> privkey2;
+  std::vector<uint8> pubkey1;
+  std::vector<uint8> pubkey2;
+  std::string raw_pubkey1;
+  std::string raw_pubkey2;
+  ASSERT_TRUE(keypair1->ExportEncryptedPrivateKey(password1, 1, &privkey1));
+  ASSERT_TRUE(keypair2->ExportEncryptedPrivateKey(password2, 1, &privkey2));
+  EXPECT_TRUE(keypair1->ExportPublicKey(&pubkey1));
+  EXPECT_TRUE(keypair2->ExportPublicKey(&pubkey2));
+  EXPECT_TRUE(keypair1->ExportRawPublicKey(&raw_pubkey1));
+  EXPECT_TRUE(keypair2->ExportRawPublicKey(&raw_pubkey2));
+
+  scoped_ptr<crypto::ECPrivateKey> keypair3(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          password1, privkey1, pubkey1));
+  scoped_ptr<crypto::ECPrivateKey> keypair4(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          password2, privkey2, pubkey2));
+  ASSERT_TRUE(keypair3.get());
+  ASSERT_TRUE(keypair4.get());
+
+  std::vector<uint8> key3value;
+  std::vector<uint8> key4value;
+  std::vector<uint8> key3params;
+  std::vector<uint8> key4params;
+  EXPECT_TRUE(keypair3->ExportValue(&key3value));
+  EXPECT_TRUE(keypair4->ExportValue(&key4value));
+  EXPECT_TRUE(keypair3->ExportECParams(&key3params));
+  EXPECT_TRUE(keypair4->ExportECParams(&key4params));
+
+  EXPECT_EQ(key1value, key3value);
+  EXPECT_EQ(key2value, key4value);
+  EXPECT_EQ(key1params, key3params);
+  EXPECT_EQ(key2params, key4params);
+
+  std::vector<uint8> pubkey3;
+  std::vector<uint8> pubkey4;
+  std::string raw_pubkey3;
+  std::string raw_pubkey4;
+  EXPECT_TRUE(keypair3->ExportPublicKey(&pubkey3));
+  EXPECT_TRUE(keypair4->ExportPublicKey(&pubkey4));
+  EXPECT_TRUE(keypair3->ExportRawPublicKey(&raw_pubkey3));
+  EXPECT_TRUE(keypair4->ExportRawPublicKey(&raw_pubkey4));
+
+  EXPECT_EQ(pubkey1, pubkey3);
+  EXPECT_EQ(pubkey2, pubkey4);
+  EXPECT_EQ(raw_pubkey1, raw_pubkey3);
+  EXPECT_EQ(raw_pubkey2, raw_pubkey4);
+}
+
+#if !defined(USE_OPENSSL)
+TEST(ECPrivateKeyUnitTest, Copy) {
+  scoped_ptr<crypto::ECPrivateKey> keypair1(crypto::ECPrivateKey::Create());
+  scoped_ptr<crypto::ECPrivateKey> keypair2(keypair1->Copy());
+  ASSERT_TRUE(keypair1.get());
+  ASSERT_TRUE(keypair2.get());
+
+  std::vector<uint8> key1value;
+  std::vector<uint8> key2value;
+  EXPECT_TRUE(keypair1->ExportValue(&key1value));
+  EXPECT_TRUE(keypair2->ExportValue(&key2value));
+  EXPECT_EQ(key1value, key2value);
+
+  std::vector<uint8> key1params;
+  std::vector<uint8> key2params;
+  EXPECT_TRUE(keypair1->ExportECParams(&key1params));
+  EXPECT_TRUE(keypair2->ExportECParams(&key2params));
+  EXPECT_EQ(key1params, key2params);
+
+  std::vector<uint8> pubkey1;
+  std::vector<uint8> pubkey2;
+  EXPECT_TRUE(keypair1->ExportPublicKey(&pubkey1));
+  EXPECT_TRUE(keypair2->ExportPublicKey(&pubkey2));
+  EXPECT_EQ(pubkey1, pubkey2);
+
+  std::string raw_pubkey1;
+  std::string raw_pubkey2;
+  EXPECT_TRUE(keypair1->ExportRawPublicKey(&raw_pubkey1));
+  EXPECT_TRUE(keypair2->ExportRawPublicKey(&raw_pubkey2));
+  EXPECT_EQ(raw_pubkey1, raw_pubkey2);
+}
+#endif  // !defined(USE_OPENSSL)
+
+TEST(ECPrivateKeyUnitTest, BadPasswordTest) {
+  const std::string password1;
+  const std::string password2 = "test";
+
+  scoped_ptr<crypto::ECPrivateKey> keypair1(
+      crypto::ECPrivateKey::Create());
+  ASSERT_TRUE(keypair1.get());
+
+  std::vector<uint8> privkey1;
+  std::vector<uint8> pubkey1;
+  ASSERT_TRUE(keypair1->ExportEncryptedPrivateKey(
+      password1, 1, &privkey1));
+  ASSERT_TRUE(keypair1->ExportPublicKey(&pubkey1));
+
+  scoped_ptr<crypto::ECPrivateKey> keypair2(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          password2, privkey1, pubkey1));
+  ASSERT_FALSE(keypair2.get());
+}
+
+TEST(ECPrivateKeyUnitTest, LoadNSSKeyTest) {
+  static const unsigned char nss_key[] = {
+      0x30, 0x81, 0xb8, 0x30, 0x23, 0x06, 0x0a, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+      0x0d, 0x01, 0x0c, 0x01, 0x03, 0x30, 0x15, 0x04, 0x10, 0x3f, 0xac, 0xe9,
+      0x38, 0xdb, 0x40, 0x6b, 0x26, 0x89, 0x09, 0x73, 0x18, 0x8d, 0x7f, 0x1c,
+      0x82, 0x02, 0x01, 0x01, 0x04, 0x81, 0x90, 0x5e, 0x5e, 0x11, 0xef, 0xbb,
+      0x7c, 0x4d, 0xec, 0xc0, 0xdc, 0xc7, 0x23, 0xd2, 0xc4, 0x77, 0xbc, 0xf4,
+      0x5d, 0x59, 0x4c, 0x07, 0xc2, 0x8a, 0x26, 0xfa, 0x25, 0x1c, 0xaa, 0x42,
+      0xed, 0xd0, 0xed, 0xbb, 0x5c, 0xe9, 0x13, 0x07, 0xaa, 0xdd, 0x52, 0x3c,
+      0x65, 0x25, 0xbf, 0x94, 0x02, 0xaf, 0xd6, 0x97, 0xe9, 0x33, 0x00, 0x76,
+      0x64, 0x4a, 0x73, 0xab, 0xfb, 0x99, 0x6e, 0x83, 0x12, 0x05, 0x86, 0x72,
+      0x6c, 0xd5, 0xa4, 0xcf, 0xb1, 0xd5, 0x4d, 0x54, 0x87, 0x8b, 0x4b, 0x95,
+      0x1d, 0xcd, 0xf3, 0xfe, 0xa8, 0xda, 0xe0, 0xb6, 0x72, 0x13, 0x3f, 0x2e,
+      0x66, 0xe0, 0xb9, 0x2e, 0xfa, 0x69, 0x40, 0xbe, 0xd7, 0x67, 0x6e, 0x53,
+      0x2b, 0x3f, 0x53, 0xe5, 0x39, 0x54, 0x77, 0xe1, 0x1d, 0xe6, 0x81, 0x92,
+      0x58, 0x82, 0x14, 0xfb, 0x47, 0x85, 0x3c, 0xc3, 0xdf, 0xdd, 0xcc, 0x79,
+      0x9f, 0x41, 0x83, 0x72, 0xf2, 0x0a, 0xe9, 0xe1, 0x2c, 0x12, 0xb0, 0xb0,
+      0x0a, 0xb2, 0x1d, 0xca, 0x15, 0xb2, 0xca};
+  static const unsigned char nss_pub_key[] = {
+      0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
+      0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03,
+      0x42, 0x00, 0x04, 0x85, 0x92, 0x9e, 0x95, 0x5c, 0x6b, 0x9e, 0xd6, 0x1e,
+      0xb8, 0x64, 0xea, 0xc2, 0xb3, 0xef, 0x18, 0xed, 0x3a, 0x5e, 0xc4, 0x5c,
+      0x15, 0x37, 0x6a, 0xe9, 0xaa, 0x0b, 0x34, 0x03, 0xfd, 0xca, 0x83, 0x0f,
+      0xd7, 0x5c, 0x5d, 0xc5, 0x53, 0x6e, 0xe5, 0xa9, 0x33, 0xd5, 0xcc, 0xab,
+      0x53, 0x78, 0xdd, 0xd6, 0x12, 0x3a, 0x5e, 0xeb, 0xbf, 0xdf, 0x16, 0xd3,
+      0x2c, 0x3b, 0xe8, 0xdb, 0x19, 0xfc, 0x5e};
+
+  scoped_ptr<crypto::ECPrivateKey> keypair_nss(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          "",
+          std::vector<uint8>(nss_key, nss_key + arraysize(nss_key)),
+          std::vector<uint8>(nss_pub_key,
+                             nss_pub_key + arraysize(nss_pub_key))));
+
+  EXPECT_TRUE(keypair_nss.get());
+}
+
+// Although the plan is to transition from OpenSSL to NSS, ensure NSS can import
+// OpenSSL's format so that it is possible to rollback.
+TEST(ECPrivateKeyUnitTest, LoadOpenSSLKeyTest) {
+  static const unsigned char openssl_key[] = {
+      0x30, 0x81, 0xb0, 0x30, 0x1b, 0x06, 0x0a, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+      0x0d, 0x01, 0x0c, 0x01, 0x03, 0x30, 0x0d, 0x04, 0x08, 0xb2, 0xfe, 0x68,
+      0xc2, 0xea, 0x0f, 0x10, 0x9c, 0x02, 0x01, 0x01, 0x04, 0x81, 0x90, 0xe2,
+      0xf6, 0x1c, 0xca, 0xad, 0x64, 0x30, 0xbf, 0x88, 0x04, 0x35, 0xe5, 0x0f,
+      0x11, 0x49, 0x06, 0x01, 0x14, 0x33, 0x80, 0xa2, 0x78, 0x44, 0x5b, 0xaa,
+      0x0d, 0xd7, 0x00, 0x36, 0x9d, 0x91, 0x97, 0x37, 0x20, 0x7b, 0x27, 0xc1,
+      0xa0, 0xa2, 0x73, 0x06, 0x15, 0xdf, 0xc8, 0x13, 0x9b, 0xc9, 0x8c, 0x9c,
+      0xce, 0x00, 0xd0, 0xc8, 0x42, 0xc1, 0xda, 0x2b, 0x07, 0x2b, 0x12, 0xa3,
+      0xce, 0x10, 0x39, 0x7a, 0xf1, 0x55, 0x69, 0x8d, 0xa5, 0xc4, 0x2a, 0x00,
+      0x0d, 0x94, 0xc6, 0xde, 0x6a, 0x3d, 0xb7, 0xe5, 0x6d, 0x59, 0x3e, 0x09,
+      0xb5, 0xe3, 0x3e, 0xfc, 0x50, 0x56, 0xe9, 0x50, 0x42, 0x7c, 0xe7, 0xf0,
+      0x19, 0xbd, 0x31, 0xa7, 0x85, 0x47, 0xb3, 0xe9, 0xb3, 0x50, 0x3c, 0xc9,
+      0x32, 0x37, 0x1a, 0x93, 0x78, 0x48, 0x78, 0x82, 0xde, 0xad, 0x5c, 0xf2,
+      0xcf, 0xf2, 0xbb, 0x2c, 0x44, 0x05, 0x7f, 0x4a, 0xf9, 0xb1, 0x2b, 0xdd,
+      0x49, 0xf6, 0x7e, 0xd0, 0x42, 0xaa, 0x14, 0x3c, 0x24, 0x77, 0xb4};
+  static const unsigned char openssl_pub_key[] = {
+      0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
+      0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03,
+      0x42, 0x00, 0x04, 0xb9, 0xda, 0x0d, 0x71, 0x60, 0xb3, 0x63, 0x28, 0x22,
+      0x67, 0xe7, 0xe0, 0xa3, 0xf8, 0x00, 0x8e, 0x4c, 0x89, 0xed, 0x31, 0x34,
+      0xf6, 0xdb, 0xc4, 0xfe, 0x0b, 0x5d, 0xe1, 0x11, 0x39, 0x49, 0xa6, 0x50,
+      0xa8, 0xe3, 0x4a, 0xc0, 0x40, 0x88, 0xb8, 0x38, 0x3f, 0x56, 0xfb, 0x33,
+      0x8d, 0xd4, 0x64, 0x91, 0xd6, 0x15, 0x77, 0x42, 0x27, 0xc5, 0xaa, 0x44,
+      0xff, 0xab, 0x4d, 0xb5, 0x7e, 0x25, 0x3d};
+
+  scoped_ptr<crypto::ECPrivateKey> keypair_openssl(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          "",
+          std::vector<uint8>(openssl_key, openssl_key + arraysize(openssl_key)),
+          std::vector<uint8>(openssl_pub_key,
+                             openssl_pub_key + arraysize(openssl_pub_key))));
+
+  EXPECT_TRUE(keypair_openssl.get());
+}
+
+// The Android code writes out Channel IDs differently from the NSS
+// implementation; the empty password is converted to "\0\0". The OpenSSL port
+// should support either.
+#if defined(USE_OPENSSL)
+TEST(ECPrivateKeyUnitTest, LoadOldOpenSSLKeyTest) {
+  static const unsigned char openssl_key[] = {
+      0x30, 0x82, 0x01, 0xa1, 0x30, 0x1b, 0x06, 0x0a, 0x2a, 0x86, 0x48, 0x86,
+      0xf7, 0x0d, 0x01, 0x0c, 0x01, 0x03, 0x30, 0x0d, 0x04, 0x08, 0x86, 0xaa,
+      0xd7, 0xdf, 0x3b, 0x91, 0x97, 0x60, 0x02, 0x01, 0x01, 0x04, 0x82, 0x01,
+      0x80, 0xcb, 0x2a, 0x14, 0xaa, 0x4f, 0x38, 0x4c, 0xe1, 0x49, 0x00, 0xe2,
+      0x1a, 0x3a, 0x75, 0x87, 0x7e, 0x3d, 0xea, 0x4d, 0x53, 0xd4, 0x46, 0x47,
+      0x23, 0x8f, 0xa1, 0x72, 0x51, 0x92, 0x86, 0x8b, 0xeb, 0x53, 0xe6, 0x6a,
+      0x0a, 0x6b, 0xb6, 0xa0, 0xdc, 0x0f, 0xdc, 0x20, 0xc3, 0x45, 0x85, 0xf1,
+      0x95, 0x90, 0x5c, 0xf4, 0xfa, 0xee, 0x47, 0xaf, 0x35, 0xd0, 0xd0, 0xd3,
+      0x14, 0xde, 0x0d, 0xca, 0x1b, 0xd3, 0xbb, 0x20, 0xec, 0x9d, 0x6a, 0xd4,
+      0xc1, 0xce, 0x60, 0x81, 0xab, 0x0c, 0x72, 0x10, 0xfa, 0x28, 0x3c, 0xac,
+      0x87, 0x7b, 0x82, 0x85, 0x00, 0xb8, 0x58, 0x9c, 0x07, 0xc4, 0x7d, 0xa9,
+      0xc5, 0x94, 0x95, 0xf7, 0x23, 0x93, 0x3f, 0xed, 0xef, 0x92, 0x55, 0x25,
+      0x74, 0xbb, 0xd3, 0xd1, 0x67, 0x3b, 0x3d, 0x5a, 0xfe, 0x84, 0xf8, 0x97,
+      0x7d, 0x7c, 0x01, 0xc7, 0xd7, 0x0d, 0xf8, 0xc3, 0x6d, 0xd6, 0xf1, 0xaa,
+      0x9d, 0x1f, 0x69, 0x97, 0x45, 0x06, 0xc4, 0x1c, 0x95, 0x3c, 0xe0, 0xef,
+      0x11, 0xb2, 0xb3, 0x72, 0x91, 0x9e, 0x7d, 0x0f, 0x7f, 0xc8, 0xf6, 0x64,
+      0x49, 0x5e, 0x3c, 0x53, 0x37, 0x79, 0x03, 0x1c, 0x3f, 0x29, 0x6c, 0x6b,
+      0xea, 0x4c, 0x35, 0x9b, 0x6d, 0x1b, 0x59, 0x43, 0x4c, 0x14, 0x47, 0x2a,
+      0x36, 0x39, 0x2a, 0xd8, 0x96, 0x90, 0xdc, 0xfc, 0xd2, 0xdd, 0x23, 0x0e,
+      0x2c, 0xb3, 0x83, 0xf9, 0xf2, 0xe3, 0xe6, 0x99, 0x53, 0x57, 0x33, 0xc5,
+      0x5f, 0xf9, 0xfd, 0x56, 0x0b, 0x32, 0xd4, 0xf3, 0x9d, 0x5b, 0x34, 0xe5,
+      0x94, 0xbf, 0xb6, 0xc0, 0xce, 0xe1, 0x73, 0x5c, 0x02, 0x7a, 0x4c, 0xed,
+      0xde, 0x23, 0x38, 0x89, 0x9f, 0xcd, 0x51, 0xf3, 0x90, 0x80, 0xd3, 0x4b,
+      0x83, 0xd3, 0xee, 0xf2, 0x9e, 0x35, 0x91, 0xa5, 0xa3, 0xc0, 0x5c, 0xce,
+      0xdb, 0xaa, 0x70, 0x1e, 0x1d, 0xc1, 0x44, 0xea, 0x3b, 0xa7, 0x5a, 0x11,
+      0xd1, 0xf3, 0xf3, 0xd0, 0xf4, 0x5a, 0xc4, 0x99, 0xaf, 0x8d, 0xe2, 0xbc,
+      0xa2, 0xb9, 0x3d, 0x86, 0x5e, 0xba, 0xa0, 0xdf, 0x78, 0x81, 0x7c, 0x54,
+      0x31, 0xe3, 0x98, 0xb5, 0x46, 0xcb, 0x4d, 0x26, 0x4b, 0xf8, 0xac, 0x3a,
+      0x54, 0x1b, 0x77, 0x5a, 0x18, 0xa5, 0x43, 0x0e, 0x14, 0xde, 0x7b, 0xb7,
+      0x4e, 0x45, 0x99, 0x03, 0xd1, 0x3d, 0x18, 0xb2, 0x36, 0x00, 0x48, 0x07,
+      0x72, 0xbb, 0x4f, 0x21, 0x25, 0x3e, 0xda, 0x25, 0x24, 0x5b, 0xc8, 0xa0,
+      0x28, 0xd5, 0x9b, 0x96, 0x87, 0x07, 0x77, 0x84, 0xff, 0xd7, 0xac, 0x71,
+      0xf6, 0x61, 0x63, 0x0b, 0xfb, 0x42, 0xfd, 0x52, 0xf4, 0xc4, 0x35, 0x0c,
+      0xc2, 0xc1, 0x55, 0x22, 0x42, 0x2f, 0x13, 0x7d, 0x93, 0x27, 0xc8, 0x11,
+      0x35, 0xc5, 0xe3, 0xc5, 0xaa, 0x15, 0x3c, 0xac, 0x30, 0xbc, 0x45, 0x16,
+      0xed};
+  static const unsigned char openssl_pub_key[] = {
+      0x30, 0x82, 0x01, 0x4b, 0x30, 0x82, 0x01, 0x03, 0x06, 0x07, 0x2a, 0x86,
+      0x48, 0xce, 0x3d, 0x02, 0x01, 0x30, 0x81, 0xf7, 0x02, 0x01, 0x01, 0x30,
+      0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01, 0x01, 0x02, 0x21,
+      0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x30, 0x5b, 0x04,
+      0x20, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0x04, 0x20, 0x5a,
+      0xc6, 0x35, 0xd8, 0xaa, 0x3a, 0x93, 0xe7, 0xb3, 0xeb, 0xbd, 0x55, 0x76,
+      0x98, 0x86, 0xbc, 0x65, 0x1d, 0x06, 0xb0, 0xcc, 0x53, 0xb0, 0xf6, 0x3b,
+      0xce, 0x3c, 0x3e, 0x27, 0xd2, 0x60, 0x4b, 0x03, 0x15, 0x00, 0xc4, 0x9d,
+      0x36, 0x08, 0x86, 0xe7, 0x04, 0x93, 0x6a, 0x66, 0x78, 0xe1, 0x13, 0x9d,
+      0x26, 0xb7, 0x81, 0x9f, 0x7e, 0x90, 0x04, 0x41, 0x04, 0x6b, 0x17, 0xd1,
+      0xf2, 0xe1, 0x2c, 0x42, 0x47, 0xf8, 0xbc, 0xe6, 0xe5, 0x63, 0xa4, 0x40,
+      0xf2, 0x77, 0x03, 0x7d, 0x81, 0x2d, 0xeb, 0x33, 0xa0, 0xf4, 0xa1, 0x39,
+      0x45, 0xd8, 0x98, 0xc2, 0x96, 0x4f, 0xe3, 0x42, 0xe2, 0xfe, 0x1a, 0x7f,
+      0x9b, 0x8e, 0xe7, 0xeb, 0x4a, 0x7c, 0x0f, 0x9e, 0x16, 0x2b, 0xce, 0x33,
+      0x57, 0x6b, 0x31, 0x5e, 0xce, 0xcb, 0xb6, 0x40, 0x68, 0x37, 0xbf, 0x51,
+      0xf5, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xbc, 0xe6, 0xfa, 0xad,
+      0xa7, 0x17, 0x9e, 0x84, 0xf3, 0xb9, 0xca, 0xc2, 0xfc, 0x63, 0x25, 0x51,
+      0x02, 0x01, 0x01, 0x03, 0x42, 0x00, 0x04, 0xde, 0x09, 0x08, 0x07, 0x03,
+      0x2e, 0x8f, 0x37, 0x9a, 0xd5, 0xad, 0xe5, 0xc6, 0x9d, 0xd4, 0x63, 0xc7,
+      0x4a, 0xe7, 0x20, 0xcb, 0x90, 0xa0, 0x1f, 0x18, 0x18, 0x72, 0xb5, 0x21,
+      0x88, 0x38, 0xc0, 0xdb, 0xba, 0xf6, 0x99, 0xd8, 0xa5, 0x3b, 0x83, 0xe9,
+      0xe3, 0xd5, 0x61, 0x99, 0x73, 0x42, 0xc6, 0x6c, 0xe8, 0x0a, 0x95, 0x40,
+      0x41, 0x3b, 0x0d, 0x10, 0xa7, 0x4a, 0x93, 0xdb, 0x5a, 0xe7, 0xec};
+
+  scoped_ptr<crypto::ECPrivateKey> keypair_openssl(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          "",
+          std::vector<uint8>(openssl_key, openssl_key + arraysize(openssl_key)),
+          std::vector<uint8>(openssl_pub_key,
+                             openssl_pub_key + arraysize(openssl_pub_key))));
+
+  EXPECT_TRUE(keypair_openssl.get());
+}
+#endif  // defined(USE_OPENSSL)
diff --git a/crypto/ec_signature_creator.cc b/crypto/ec_signature_creator.cc
new file mode 100644
index 0000000..a6887bc
--- /dev/null
+++ b/crypto/ec_signature_creator.cc
@@ -0,0 +1,34 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_signature_creator.h"
+
+#include "base/logging.h"
+#include "crypto/ec_signature_creator_impl.h"
+
+namespace crypto {
+
+namespace {
+
+ECSignatureCreatorFactory* g_factory_ = NULL;
+
+}  // namespace
+
+// static
+ECSignatureCreator* ECSignatureCreator::Create(ECPrivateKey* key) {
+  if (g_factory_)
+    return g_factory_->Create(key);
+  return new ECSignatureCreatorImpl(key);
+}
+
+// static
+void ECSignatureCreator::SetFactoryForTesting(
+    ECSignatureCreatorFactory* factory) {
+  // We should always clear the factory after each test to avoid
+  // use-after-free problems.
+  DCHECK(!g_factory_ || !factory);
+  g_factory_ = factory;
+}
+
+}  // namespace crypto
diff --git a/crypto/ec_signature_creator.h b/crypto/ec_signature_creator.h
new file mode 100644
index 0000000..16e64f5
--- /dev/null
+++ b/crypto/ec_signature_creator.h
@@ -0,0 +1,66 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_EC_SIGNATURE_CREATOR_H_
+#define CRYPTO_EC_SIGNATURE_CREATOR_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+class ECPrivateKey;
+class ECSignatureCreator;
+
+class CRYPTO_EXPORT ECSignatureCreatorFactory {
+ public:
+  virtual ~ECSignatureCreatorFactory() {}
+
+  virtual ECSignatureCreator* Create(ECPrivateKey* key) = 0;
+};
+
+// Signs data using a bare private key (as opposed to a full certificate).
+// We need this class because SignatureCreator is hardcoded to use
+// RSAPrivateKey.
+class CRYPTO_EXPORT ECSignatureCreator {
+ public:
+  virtual ~ECSignatureCreator() {}
+
+  // Create an instance. The caller must ensure that the provided PrivateKey
+  // instance outlives the created ECSignatureCreator.
+  // TODO(rch):  This is currently hard coded to use SHA256. Ideally, we should
+  // pass in the hash algorithm identifier.
+  static ECSignatureCreator* Create(ECPrivateKey* key);
+
+  // Set a factory to make the Create function return non-standard
+  // ECSignatureCreator objects.  Because the ECDSA algorithm involves
+  // randomness, this is useful for higher-level tests that want to have
+  // deterministic mocked output to compare.
+  static void SetFactoryForTesting(ECSignatureCreatorFactory* factory);
+
+  // Signs |data_len| bytes from |data| and writes the results into
+  // |signature| as a DER encoded ECDSA-Sig-Value from RFC 3279.
+  //
+  //  ECDSA-Sig-Value ::= SEQUENCE {
+  //    r     INTEGER,
+  //    s     INTEGER }
+  virtual bool Sign(const uint8* data,
+                    int data_len,
+                    std::vector<uint8>* signature) = 0;
+
+  // DecodeSignature converts from a DER encoded ECDSA-Sig-Value (as produced
+  // by Sign) to a `raw' ECDSA signature which consists of a pair of
+  // big-endian, zero-padded, 256-bit integers, r and s. On success it returns
+  // true and puts the raw signature into |out_raw_sig|.
+  // (Only P-256 signatures are supported.)
+  virtual bool DecodeSignature(const std::vector<uint8>& signature,
+                               std::vector<uint8>* out_raw_sig) = 0;
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_EC_SIGNATURE_CREATOR_H_
diff --git a/crypto/ec_signature_creator_impl.h b/crypto/ec_signature_creator_impl.h
new file mode 100644
index 0000000..8ef67cd
--- /dev/null
+++ b/crypto/ec_signature_creator_impl.h
@@ -0,0 +1,34 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_EC_SIGNATURE_CREATOR_IMPL_H_
+#define CRYPTO_EC_SIGNATURE_CREATOR_IMPL_H_
+
+#include "base/compiler_specific.h"
+#include "crypto/ec_signature_creator.h"
+
+namespace crypto {
+
+class ECSignatureCreatorImpl : public ECSignatureCreator {
+ public:
+  explicit ECSignatureCreatorImpl(ECPrivateKey* key);
+  virtual ~ECSignatureCreatorImpl();
+
+  virtual bool Sign(const uint8* data,
+                    int data_len,
+                    std::vector<uint8>* signature) OVERRIDE;
+
+  virtual bool DecodeSignature(const std::vector<uint8>& der_sig,
+                               std::vector<uint8>* out_raw_sig) OVERRIDE;
+
+ private:
+  ECPrivateKey* key_;
+  size_t signature_len_;
+
+  DISALLOW_COPY_AND_ASSIGN(ECSignatureCreatorImpl);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_EC_SIGNATURE_CREATOR_IMPL_H_
diff --git a/crypto/ec_signature_creator_nss.cc b/crypto/ec_signature_creator_nss.cc
new file mode 100644
index 0000000..3e3626f
--- /dev/null
+++ b/crypto/ec_signature_creator_nss.cc
@@ -0,0 +1,114 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_signature_creator_impl.h"
+
+#include <cryptohi.h>
+#include <pk11pub.h>
+#include <secerr.h>
+#include <sechash.h>
+#if defined(OS_POSIX)
+#include <unistd.h>
+#endif
+
+#include "base/logging.h"
+#include "crypto/ec_private_key.h"
+#include "crypto/nss_util.h"
+#include "crypto/scoped_nss_types.h"
+
+namespace crypto {
+
+namespace {
+
+SECStatus SignData(SECItem* result,
+                   SECItem* input,
+                   SECKEYPrivateKey* key,
+                   HASH_HashType hash_type,
+                   size_t* out_signature_len) {
+  if (key->keyType != ecKey) {
+    DLOG(FATAL) << "Should be using an EC key.";
+    PORT_SetError(SEC_ERROR_INVALID_ARGS);
+    return SECFailure;
+  }
+
+  // Hash the input.
+  std::vector<uint8> hash_data(HASH_ResultLen(hash_type));
+  SECStatus rv = HASH_HashBuf(
+      hash_type, &hash_data[0], input->data, input->len);
+  if (rv != SECSuccess)
+    return rv;
+  SECItem hash = {siBuffer, &hash_data[0],
+                  static_cast<unsigned int>(hash_data.size())};
+
+  // Compute signature of hash.
+  int signature_len = PK11_SignatureLen(key);
+  std::vector<uint8> signature_data(signature_len);
+  SECItem sig = {siBuffer, &signature_data[0],
+                 static_cast<unsigned int>(signature_len)};
+  rv = PK11_Sign(key, &sig, &hash);
+  if (rv != SECSuccess)
+    return rv;
+
+  *out_signature_len = sig.len;
+
+  // DER encode the signature.
+  return DSAU_EncodeDerSigWithLen(result, &sig, sig.len);
+}
+
+}  // namespace
+
+ECSignatureCreatorImpl::ECSignatureCreatorImpl(ECPrivateKey* key)
+    : key_(key),
+      signature_len_(0) {
+  EnsureNSSInit();
+}
+
+ECSignatureCreatorImpl::~ECSignatureCreatorImpl() {}
+
+bool ECSignatureCreatorImpl::Sign(const uint8* data,
+                                  int data_len,
+                                  std::vector<uint8>* signature) {
+  // Data to be signed
+  SECItem secret;
+  secret.type = siBuffer;
+  secret.len = data_len;
+  secret.data = const_cast<unsigned char*>(data);
+
+  // SECItem to receive the output buffer.
+  SECItem result;
+  result.type = siBuffer;
+  result.len = 0;
+  result.data = NULL;
+
+  // Sign the secret data and save it to |result|.
+  SECStatus rv =
+      SignData(&result, &secret, key_->key(), HASH_AlgSHA256, &signature_len_);
+  if (rv != SECSuccess) {
+    DLOG(ERROR) << "DerSignData: " << PORT_GetError();
+    return false;
+  }
+
+  // Copy the signed data into the output vector.
+  signature->assign(result.data, result.data + result.len);
+  SECITEM_FreeItem(&result, PR_FALSE /* only free |result.data| */);
+  return true;
+}
+
+bool ECSignatureCreatorImpl::DecodeSignature(
+    const std::vector<uint8>& der_sig,
+    std::vector<uint8>* out_raw_sig) {
+  SECItem der_sig_item;
+  der_sig_item.type = siBuffer;
+  der_sig_item.len = der_sig.size();
+  der_sig_item.data = const_cast<uint8*>(&der_sig[0]);
+
+  SECItem* raw_sig = DSAU_DecodeDerSigToLen(&der_sig_item, signature_len_);
+  if (!raw_sig)
+    return false;
+  out_raw_sig->assign(raw_sig->data, raw_sig->data + raw_sig->len);
+  SECITEM_FreeItem(raw_sig, PR_TRUE /* free SECItem structure itself. */);
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/ec_signature_creator_openssl.cc b/crypto/ec_signature_creator_openssl.cc
new file mode 100644
index 0000000..91e8a6a
--- /dev/null
+++ b/crypto/ec_signature_creator_openssl.cc
@@ -0,0 +1,85 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_signature_creator_impl.h"
+
+#include <openssl/bn.h>
+#include <openssl/ec.h>
+#include <openssl/ecdsa.h>
+#include <openssl/evp.h>
+#include <openssl/sha.h>
+
+#include "base/logging.h"
+#include "crypto/ec_private_key.h"
+#include "crypto/openssl_util.h"
+#include "crypto/scoped_openssl_types.h"
+
+namespace crypto {
+
+ECSignatureCreatorImpl::ECSignatureCreatorImpl(ECPrivateKey* key)
+    : key_(key), signature_len_(0) {
+  EnsureOpenSSLInit();
+}
+
+ECSignatureCreatorImpl::~ECSignatureCreatorImpl() {}
+
+bool ECSignatureCreatorImpl::Sign(const uint8* data,
+                                  int data_len,
+                                  std::vector<uint8>* signature) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  ScopedEVP_MD_CTX ctx(EVP_MD_CTX_create());
+  size_t sig_len = 0;
+  if (!ctx.get() ||
+      !EVP_DigestSignInit(ctx.get(), NULL, EVP_sha256(), NULL, key_->key()) ||
+      !EVP_DigestSignUpdate(ctx.get(), data, data_len) ||
+      !EVP_DigestSignFinal(ctx.get(), NULL, &sig_len)) {
+    return false;
+  }
+
+  signature->resize(sig_len);
+  if (!EVP_DigestSignFinal(ctx.get(), &signature->front(), &sig_len))
+    return false;
+
+  // NOTE: A call to EVP_DigestSignFinal() with a NULL second parameter returns
+  // a maximum allocation size, while the call without a NULL returns the real
+  // one, which may be smaller.
+  signature->resize(sig_len);
+  return true;
+}
+
+bool ECSignatureCreatorImpl::DecodeSignature(const std::vector<uint8>& der_sig,
+                                             std::vector<uint8>* out_raw_sig) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  // Create ECDSA_SIG object from DER-encoded data.
+  const unsigned char* der_data = &der_sig.front();
+  ScopedECDSA_SIG ecdsa_sig(
+      d2i_ECDSA_SIG(NULL, &der_data, static_cast<long>(der_sig.size())));
+  if (!ecdsa_sig.get())
+    return false;
+
+  // The result is made of two 32-byte vectors.
+  const size_t kMaxBytesPerBN = 32;
+  std::vector<uint8> result;
+  result.resize(2 * kMaxBytesPerBN);
+  memset(&result[0], 0, result.size());
+
+  BIGNUM* r = ecdsa_sig.get()->r;
+  BIGNUM* s = ecdsa_sig.get()->s;
+  int r_bytes = BN_num_bytes(r);
+  int s_bytes = BN_num_bytes(s);
+  // NOTE: Can't really check for equality here since sometimes the value
+  // returned by BN_num_bytes() will be slightly smaller than kMaxBytesPerBN.
+  if (r_bytes > static_cast<int>(kMaxBytesPerBN) ||
+      s_bytes > static_cast<int>(kMaxBytesPerBN)) {
+    DLOG(ERROR) << "Invalid key sizes r(" << r_bytes << ") s(" << s_bytes
+                << ")";
+    return false;
+  }
+  BN_bn2bin(ecdsa_sig.get()->r, &result[kMaxBytesPerBN - r_bytes]);
+  BN_bn2bin(ecdsa_sig.get()->s, &result[2 * kMaxBytesPerBN - s_bytes]);
+  out_raw_sig->swap(result);
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/ec_signature_creator_unittest.cc b/crypto/ec_signature_creator_unittest.cc
new file mode 100644
index 0000000..2a40cfe
--- /dev/null
+++ b/crypto/ec_signature_creator_unittest.cc
@@ -0,0 +1,75 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ec_signature_creator.h"
+
+#include <string>
+#include <vector>
+
+#include "base/memory/scoped_ptr.h"
+#include "crypto/ec_private_key.h"
+#include "crypto/signature_verifier.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// TODO(rch): Add some exported keys from each to
+// test interop between NSS and OpenSSL.
+
+TEST(ECSignatureCreatorTest, BasicTest) {
+  // Do a verify round trip.
+  scoped_ptr<crypto::ECPrivateKey> key_original(
+      crypto::ECPrivateKey::Create());
+  ASSERT_TRUE(key_original.get());
+
+  std::vector<uint8> key_info;
+  ASSERT_TRUE(
+      key_original->ExportEncryptedPrivateKey(std::string(), 1000, &key_info));
+  std::vector<uint8> pubkey_info;
+  ASSERT_TRUE(key_original->ExportPublicKey(&pubkey_info));
+
+  scoped_ptr<crypto::ECPrivateKey> key(
+      crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
+          std::string(), key_info, pubkey_info));
+  ASSERT_TRUE(key.get());
+  ASSERT_TRUE(key->key() != NULL);
+
+  scoped_ptr<crypto::ECSignatureCreator> signer(
+      crypto::ECSignatureCreator::Create(key.get()));
+  ASSERT_TRUE(signer.get());
+
+  std::string data("Hello, World!");
+  std::vector<uint8> signature;
+  ASSERT_TRUE(signer->Sign(reinterpret_cast<const uint8*>(data.c_str()),
+                           data.size(),
+                           &signature));
+
+  std::vector<uint8> public_key_info;
+  ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
+
+  // This is the algorithm ID for ECDSA with SHA-256. Parameters are ABSENT.
+  // RFC 5758:
+  //   ecdsa-with-SHA256 OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+  //        us(840) ansi-X9-62(10045) signatures(4) ecdsa-with-SHA2(3) 2 }
+  //   ...
+  //   When the ecdsa-with-SHA224, ecdsa-with-SHA256, ecdsa-with-SHA384, or
+  //   ecdsa-with-SHA512 algorithm identifier appears in the algorithm field
+  //   as an AlgorithmIdentifier, the encoding MUST omit the parameters
+  //   field.  That is, the AlgorithmIdentifier SHALL be a SEQUENCE of one
+  //   component, the OID ecdsa-with-SHA224, ecdsa-with-SHA256, ecdsa-with-
+  //   SHA384, or ecdsa-with-SHA512.
+  // See also RFC 5480, Appendix A.
+  const uint8 kECDSAWithSHA256AlgorithmID[] = {
+    0x30, 0x0a,
+      0x06, 0x08,
+        0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
+  };
+  crypto::SignatureVerifier verifier;
+  ASSERT_TRUE(verifier.VerifyInit(
+      kECDSAWithSHA256AlgorithmID, sizeof(kECDSAWithSHA256AlgorithmID),
+      &signature[0], signature.size(),
+      &public_key_info.front(), public_key_info.size()));
+
+  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
+                        data.size());
+  ASSERT_TRUE(verifier.VerifyFinal());
+}
diff --git a/crypto/encryptor.cc b/crypto/encryptor.cc
new file mode 100644
index 0000000..a673f81
--- /dev/null
+++ b/crypto/encryptor.cc
@@ -0,0 +1,97 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/encryptor.h"
+
+#include "base/logging.h"
+#include "base/sys_byteorder.h"
+
+namespace crypto {
+
+/////////////////////////////////////////////////////////////////////////////
+// Encyptor::Counter Implementation.
+Encryptor::Counter::Counter(const base::StringPiece& counter) {
+  CHECK(sizeof(counter_) == counter.length());
+
+  memcpy(&counter_, counter.data(), sizeof(counter_));
+}
+
+Encryptor::Counter::~Counter() {
+}
+
+bool Encryptor::Counter::Increment() {
+  uint64 low_num = base::NetToHost64(counter_.components64[1]);
+  uint64 new_low_num = low_num + 1;
+  counter_.components64[1] = base::HostToNet64(new_low_num);
+
+  // If overflow occured then increment the most significant component.
+  if (new_low_num < low_num) {
+    counter_.components64[0] =
+        base::HostToNet64(base::NetToHost64(counter_.components64[0]) + 1);
+  }
+
+  // TODO(hclam): Return false if counter value overflows.
+  return true;
+}
+
+void Encryptor::Counter::Write(void* buf) {
+  uint8* buf_ptr = reinterpret_cast<uint8*>(buf);
+  memcpy(buf_ptr, &counter_, sizeof(counter_));
+}
+
+size_t Encryptor::Counter::GetLengthInBytes() const {
+  return sizeof(counter_);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Partial Encryptor Implementation.
+
+bool Encryptor::SetCounter(const base::StringPiece& counter) {
+  if (mode_ != CTR)
+    return false;
+  if (counter.length() != 16u)
+    return false;
+
+  counter_.reset(new Counter(counter));
+  return true;
+}
+
+bool Encryptor::GenerateCounterMask(size_t plaintext_len,
+                                    uint8* mask,
+                                    size_t* mask_len) {
+  DCHECK_EQ(CTR, mode_);
+  CHECK(mask);
+  CHECK(mask_len);
+
+  const size_t kBlockLength = counter_->GetLengthInBytes();
+  size_t blocks = (plaintext_len + kBlockLength - 1) / kBlockLength;
+  CHECK(blocks);
+
+  *mask_len = blocks * kBlockLength;
+
+  for (size_t i = 0; i < blocks; ++i) {
+    counter_->Write(mask);
+    mask += kBlockLength;
+
+    bool ret = counter_->Increment();
+    if (!ret)
+      return false;
+  }
+  return true;
+}
+
+void Encryptor::MaskMessage(const void* plaintext,
+                            size_t plaintext_len,
+                            const void* mask,
+                            void* ciphertext) const {
+  DCHECK_EQ(CTR, mode_);
+  const uint8* plaintext_ptr = reinterpret_cast<const uint8*>(plaintext);
+  const uint8* mask_ptr = reinterpret_cast<const uint8*>(mask);
+  uint8* ciphertext_ptr = reinterpret_cast<uint8*>(ciphertext);
+
+  for (size_t i = 0; i < plaintext_len; ++i)
+    ciphertext_ptr[i] = plaintext_ptr[i] ^ mask_ptr[i];
+}
+
+}  // namespace crypto
diff --git a/crypto/encryptor.h b/crypto/encryptor.h
new file mode 100644
index 0000000..ec1498b
--- /dev/null
+++ b/crypto/encryptor.h
@@ -0,0 +1,138 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_ENCRYPTOR_H_
+#define CRYPTO_ENCRYPTOR_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_piece.h"
+#include "build/build_config.h"
+#include "crypto/crypto_export.h"
+
+#if defined(USE_NSS) || \
+    (!defined(USE_OPENSSL) && (defined(OS_WIN) || defined(OS_MACOSX)))
+#include "crypto/scoped_nss_types.h"
+#endif
+
+namespace crypto {
+
+class SymmetricKey;
+
+class CRYPTO_EXPORT Encryptor {
+ public:
+  enum Mode {
+    CBC,
+    CTR,
+  };
+
+  // This class implements a 128-bits counter to be used in AES-CTR encryption.
+  // Only 128-bits counter is supported in this class.
+  class CRYPTO_EXPORT Counter {
+   public:
+    explicit Counter(const base::StringPiece& counter);
+    ~Counter();
+
+    // Increment the counter value.
+    bool Increment();
+
+    // Write the content of the counter to |buf|. |buf| should have enough
+    // space for |GetLengthInBytes()|.
+    void Write(void* buf);
+
+    // Return the length of this counter.
+    size_t GetLengthInBytes() const;
+
+   private:
+    union {
+      uint32 components32[4];
+      uint64 components64[2];
+    } counter_;
+  };
+
+  Encryptor();
+  virtual ~Encryptor();
+
+  // Initializes the encryptor using |key| and |iv|. Returns false if either the
+  // key or the initialization vector cannot be used.
+  //
+  // If |mode| is CBC, |iv| must not be empty; if it is CTR, then |iv| must be
+  // empty.
+  bool Init(SymmetricKey* key, Mode mode, const base::StringPiece& iv);
+
+  // Encrypts |plaintext| into |ciphertext|.  |plaintext| may only be empty if
+  // the mode is CBC.
+  bool Encrypt(const base::StringPiece& plaintext, std::string* ciphertext);
+
+  // Decrypts |ciphertext| into |plaintext|.  |ciphertext| must not be empty.
+  //
+  // WARNING: In CBC mode, Decrypt() returns false if it detects the padding
+  // in the decrypted plaintext is wrong. Padding errors can result from
+  // tampered ciphertext or a wrong decryption key. But successful decryption
+  // does not imply the authenticity of the data. The caller of Decrypt()
+  // must either authenticate the ciphertext before decrypting it, or take
+  // care to not report decryption failure. Otherwise it could inadvertently
+  // be used as a padding oracle to attack the cryptosystem.
+  bool Decrypt(const base::StringPiece& ciphertext, std::string* plaintext);
+
+  // Sets the counter value when in CTR mode. Currently only 128-bits
+  // counter value is supported.
+  //
+  // Returns true only if update was successful.
+  bool SetCounter(const base::StringPiece& counter);
+
+  // TODO(albertb): Support streaming encryption.
+
+ private:
+  // Generates a mask using |counter_| to be used for encryption in CTR mode.
+  // Resulting mask will be written to |mask| with |mask_len| bytes.
+  //
+  // Make sure there's enough space in mask when calling this method.
+  // Reserve at least |plaintext_len| + 16 bytes for |mask|.
+  //
+  // The generated mask will always have at least |plaintext_len| bytes and
+  // will be a multiple of the counter length.
+  //
+  // This method is used only in CTR mode.
+  //
+  // Returns false if this call failed.
+  bool GenerateCounterMask(size_t plaintext_len,
+                           uint8* mask,
+                           size_t* mask_len);
+
+  // Mask the |plaintext| message using |mask|. The output will be written to
+  // |ciphertext|. |ciphertext| must have at least |plaintext_len| bytes.
+  void MaskMessage(const void* plaintext,
+                   size_t plaintext_len,
+                   const void* mask,
+                   void* ciphertext) const;
+
+  SymmetricKey* key_;
+  Mode mode_;
+  scoped_ptr<Counter> counter_;
+
+#if defined(USE_OPENSSL)
+  bool Crypt(bool do_encrypt,  // Pass true to encrypt, false to decrypt.
+             const base::StringPiece& input,
+             std::string* output);
+  bool CryptCTR(bool do_encrypt,
+                const base::StringPiece& input,
+                std::string* output);
+  std::string iv_;
+#elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
+  bool Crypt(PK11Context* context,
+             const base::StringPiece& input,
+             std::string* output);
+  bool CryptCTR(PK11Context* context,
+                const base::StringPiece& input,
+                std::string* output);
+  ScopedSECItem param_;
+#endif
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_ENCRYPTOR_H_
diff --git a/crypto/encryptor_nss.cc b/crypto/encryptor_nss.cc
new file mode 100644
index 0000000..ca5d523
--- /dev/null
+++ b/crypto/encryptor_nss.cc
@@ -0,0 +1,202 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/encryptor.h"
+
+#include <cryptohi.h>
+#include <vector>
+
+#include "base/logging.h"
+#include "crypto/nss_util.h"
+#include "crypto/symmetric_key.h"
+
+namespace crypto {
+
+namespace {
+
+inline CK_MECHANISM_TYPE GetMechanism(Encryptor::Mode mode) {
+  switch (mode) {
+    case Encryptor::CBC:
+      return CKM_AES_CBC_PAD;
+    case Encryptor::CTR:
+      // AES-CTR encryption uses ECB encryptor as a building block since
+      // NSS doesn't support CTR encryption mode.
+      return CKM_AES_ECB;
+    default:
+      NOTREACHED() << "Unsupported mode of operation";
+      break;
+  }
+  return static_cast<CK_MECHANISM_TYPE>(-1);
+}
+
+}  // namespace
+
+Encryptor::Encryptor()
+    : key_(NULL),
+      mode_(CBC) {
+  EnsureNSSInit();
+}
+
+Encryptor::~Encryptor() {
+}
+
+bool Encryptor::Init(SymmetricKey* key,
+                     Mode mode,
+                     const base::StringPiece& iv) {
+  DCHECK(key);
+  DCHECK(CBC == mode || CTR == mode) << "Unsupported mode of operation";
+
+  key_ = key;
+  mode_ = mode;
+
+  if (mode == CBC && iv.size() != AES_BLOCK_SIZE)
+    return false;
+
+  switch (mode) {
+    case CBC:
+      SECItem iv_item;
+      iv_item.type = siBuffer;
+      iv_item.data = reinterpret_cast<unsigned char*>(
+          const_cast<char *>(iv.data()));
+      iv_item.len = iv.size();
+
+      param_.reset(PK11_ParamFromIV(GetMechanism(mode), &iv_item));
+      break;
+    case CTR:
+      param_.reset(PK11_ParamFromIV(GetMechanism(mode), NULL));
+      break;
+  }
+
+  return param_ != NULL;
+}
+
+bool Encryptor::Encrypt(const base::StringPiece& plaintext,
+                        std::string* ciphertext) {
+  CHECK(!plaintext.empty() || (mode_ == CBC));
+  ScopedPK11Context context(PK11_CreateContextBySymKey(GetMechanism(mode_),
+                                                       CKA_ENCRYPT,
+                                                       key_->key(),
+                                                       param_.get()));
+  if (!context.get())
+    return false;
+
+  return (mode_ == CTR) ?
+      CryptCTR(context.get(), plaintext, ciphertext) :
+      Crypt(context.get(), plaintext, ciphertext);
+}
+
+bool Encryptor::Decrypt(const base::StringPiece& ciphertext,
+                        std::string* plaintext) {
+  CHECK(!ciphertext.empty());
+  ScopedPK11Context context(PK11_CreateContextBySymKey(
+      GetMechanism(mode_), (mode_ == CTR ? CKA_ENCRYPT : CKA_DECRYPT),
+      key_->key(), param_.get()));
+  if (!context.get())
+    return false;
+
+  if (mode_ == CTR)
+    return CryptCTR(context.get(), ciphertext, plaintext);
+
+  if (ciphertext.size() % AES_BLOCK_SIZE != 0) {
+    // Decryption will fail if the input is not a multiple of the block size.
+    // PK11_CipherOp has a bug where it will do an invalid memory access before
+    // the start of the input, so avoid calling it. (NSS bug 922780).
+    plaintext->clear();
+    return false;
+  }
+
+  return Crypt(context.get(), ciphertext, plaintext);
+}
+
+bool Encryptor::Crypt(PK11Context* context,
+                      const base::StringPiece& input,
+                      std::string* output) {
+  size_t output_len = input.size() + AES_BLOCK_SIZE;
+  CHECK_GT(output_len, input.size());
+
+  output->resize(output_len);
+  uint8* output_data =
+      reinterpret_cast<uint8*>(const_cast<char*>(output->data()));
+
+  int input_len = input.size();
+  uint8* input_data =
+      reinterpret_cast<uint8*>(const_cast<char*>(input.data()));
+
+  int op_len;
+  SECStatus rv = PK11_CipherOp(context,
+                               output_data,
+                               &op_len,
+                               output_len,
+                               input_data,
+                               input_len);
+
+  if (SECSuccess != rv) {
+    output->clear();
+    return false;
+  }
+
+  unsigned int digest_len;
+  rv = PK11_DigestFinal(context,
+                        output_data + op_len,
+                        &digest_len,
+                        output_len - op_len);
+  if (SECSuccess != rv) {
+    output->clear();
+    return false;
+  }
+
+  output->resize(op_len + digest_len);
+  return true;
+}
+
+bool Encryptor::CryptCTR(PK11Context* context,
+                         const base::StringPiece& input,
+                         std::string* output) {
+  if (!counter_.get()) {
+    LOG(ERROR) << "Counter value not set in CTR mode.";
+    return false;
+  }
+
+  size_t output_len = ((input.size() + AES_BLOCK_SIZE - 1) / AES_BLOCK_SIZE) *
+      AES_BLOCK_SIZE;
+  CHECK_GE(output_len, input.size());
+  output->resize(output_len);
+  uint8* output_data =
+      reinterpret_cast<uint8*>(const_cast<char*>(output->data()));
+
+  size_t mask_len;
+  bool ret = GenerateCounterMask(input.size(), output_data, &mask_len);
+  if (!ret)
+    return false;
+
+  CHECK_EQ(mask_len, output_len);
+  int op_len;
+  SECStatus rv = PK11_CipherOp(context,
+                               output_data,
+                               &op_len,
+                               output_len,
+                               output_data,
+                               mask_len);
+  if (SECSuccess != rv)
+    return false;
+  CHECK_EQ(static_cast<int>(mask_len), op_len);
+
+  unsigned int digest_len;
+  rv = PK11_DigestFinal(context,
+                        NULL,
+                        &digest_len,
+                        0);
+  if (SECSuccess != rv)
+    return false;
+  CHECK(!digest_len);
+
+  // Use |output_data| to mask |input|.
+  MaskMessage(
+      reinterpret_cast<uint8*>(const_cast<char*>(input.data())),
+      input.length(), output_data, output_data);
+  output->resize(input.length());
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/encryptor_openssl.cc b/crypto/encryptor_openssl.cc
new file mode 100644
index 0000000..0504adb
--- /dev/null
+++ b/crypto/encryptor_openssl.cc
@@ -0,0 +1,176 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/encryptor.h"
+
+#include <openssl/aes.h>
+#include <openssl/evp.h>
+
+#include "base/logging.h"
+#include "base/strings/string_util.h"
+#include "crypto/openssl_util.h"
+#include "crypto/symmetric_key.h"
+
+namespace crypto {
+
+namespace {
+
+const EVP_CIPHER* GetCipherForKey(SymmetricKey* key) {
+  switch (key->key().length()) {
+    case 16: return EVP_aes_128_cbc();
+    case 32: return EVP_aes_256_cbc();
+    default: return NULL;
+  }
+}
+
+// On destruction this class will cleanup the ctx, and also clear the OpenSSL
+// ERR stack as a convenience.
+class ScopedCipherCTX {
+ public:
+  explicit ScopedCipherCTX() {
+    EVP_CIPHER_CTX_init(&ctx_);
+  }
+  ~ScopedCipherCTX() {
+    EVP_CIPHER_CTX_cleanup(&ctx_);
+    ClearOpenSSLERRStack(FROM_HERE);
+  }
+  EVP_CIPHER_CTX* get() { return &ctx_; }
+
+ private:
+  EVP_CIPHER_CTX ctx_;
+};
+
+}  // namespace
+
+Encryptor::Encryptor()
+    : key_(NULL),
+      mode_(CBC) {
+}
+
+Encryptor::~Encryptor() {
+}
+
+bool Encryptor::Init(SymmetricKey* key,
+                     Mode mode,
+                     const base::StringPiece& iv) {
+  DCHECK(key);
+  DCHECK(mode == CBC || mode == CTR);
+
+  EnsureOpenSSLInit();
+  if (mode == CBC && iv.size() != AES_BLOCK_SIZE)
+    return false;
+
+  if (GetCipherForKey(key) == NULL)
+    return false;
+
+  key_ = key;
+  mode_ = mode;
+  iv.CopyToString(&iv_);
+  return true;
+}
+
+bool Encryptor::Encrypt(const base::StringPiece& plaintext,
+                        std::string* ciphertext) {
+  CHECK(!plaintext.empty() || (mode_ == CBC));
+  return (mode_ == CTR) ?
+      CryptCTR(true, plaintext, ciphertext) :
+      Crypt(true, plaintext, ciphertext);
+}
+
+bool Encryptor::Decrypt(const base::StringPiece& ciphertext,
+                        std::string* plaintext) {
+  CHECK(!ciphertext.empty());
+  return (mode_ == CTR) ?
+      CryptCTR(false, ciphertext, plaintext) :
+      Crypt(false, ciphertext, plaintext);
+}
+
+bool Encryptor::Crypt(bool do_encrypt,
+                      const base::StringPiece& input,
+                      std::string* output) {
+  DCHECK(key_);  // Must call Init() before En/De-crypt.
+  // Work on the result in a local variable, and then only transfer it to
+  // |output| on success to ensure no partial data is returned.
+  std::string result;
+  output->clear();
+
+  const EVP_CIPHER* cipher = GetCipherForKey(key_);
+  DCHECK(cipher);  // Already handled in Init();
+
+  const std::string& key = key_->key();
+  DCHECK_EQ(EVP_CIPHER_iv_length(cipher), iv_.length());
+  DCHECK_EQ(EVP_CIPHER_key_length(cipher), key.length());
+
+  ScopedCipherCTX ctx;
+  if (!EVP_CipherInit_ex(ctx.get(), cipher, NULL,
+                         reinterpret_cast<const uint8*>(key.data()),
+                         reinterpret_cast<const uint8*>(iv_.data()),
+                         do_encrypt))
+    return false;
+
+  // When encrypting, add another block size of space to allow for any padding.
+  const size_t output_size = input.size() + (do_encrypt ? iv_.size() : 0);
+  CHECK_GT(output_size, 0u);
+  CHECK_GT(output_size + 1, input.size());
+  uint8* out_ptr = reinterpret_cast<uint8*>(WriteInto(&result,
+                                                      output_size + 1));
+  int out_len;
+  if (!EVP_CipherUpdate(ctx.get(), out_ptr, &out_len,
+                        reinterpret_cast<const uint8*>(input.data()),
+                        input.length()))
+    return false;
+
+  // Write out the final block plus padding (if any) to the end of the data
+  // just written.
+  int tail_len;
+  if (!EVP_CipherFinal_ex(ctx.get(), out_ptr + out_len, &tail_len))
+    return false;
+
+  out_len += tail_len;
+  DCHECK_LE(out_len, static_cast<int>(output_size));
+  result.resize(out_len);
+
+  output->swap(result);
+  return true;
+}
+
+bool Encryptor::CryptCTR(bool do_encrypt,
+                         const base::StringPiece& input,
+                         std::string* output) {
+  if (!counter_.get()) {
+    LOG(ERROR) << "Counter value not set in CTR mode.";
+    return false;
+  }
+
+  AES_KEY aes_key;
+  if (AES_set_encrypt_key(reinterpret_cast<const uint8*>(key_->key().data()),
+                          key_->key().size() * 8, &aes_key) != 0) {
+    return false;
+  }
+
+  const size_t out_size = input.size();
+  CHECK_GT(out_size, 0u);
+  CHECK_GT(out_size + 1, input.size());
+
+  std::string result;
+  uint8* out_ptr = reinterpret_cast<uint8*>(WriteInto(&result, out_size + 1));
+
+  uint8_t ivec[AES_BLOCK_SIZE] = { 0 };
+  uint8_t ecount_buf[AES_BLOCK_SIZE] = { 0 };
+  unsigned int block_offset = 0;
+
+  counter_->Write(ivec);
+
+  AES_ctr128_encrypt(reinterpret_cast<const uint8*>(input.data()), out_ptr,
+                     input.size(), &aes_key, ivec, ecount_buf, &block_offset);
+
+  // AES_ctr128_encrypt() updates |ivec|. Update the |counter_| here.
+  SetCounter(base::StringPiece(reinterpret_cast<const char*>(ivec),
+                               AES_BLOCK_SIZE));
+
+  output->swap(result);
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/encryptor_unittest.cc b/crypto/encryptor_unittest.cc
new file mode 100644
index 0000000..1a99783
--- /dev/null
+++ b/crypto/encryptor_unittest.cc
@@ -0,0 +1,531 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/encryptor.h"
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_number_conversions.h"
+#include "crypto/symmetric_key.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(EncryptorTest, EncryptDecrypt) {
+  scoped_ptr<crypto::SymmetricKey> key(
+      crypto::SymmetricKey::DeriveKeyFromPassword(
+          crypto::SymmetricKey::AES, "password", "saltiest", 1000, 256));
+  EXPECT_TRUE(key.get());
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long as the cipher block size.
+  std::string iv("the iv: 16 bytes");
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_TRUE(encryptor.Init(key.get(), crypto::Encryptor::CBC, iv));
+
+  std::string plaintext("this is the plaintext");
+  std::string ciphertext;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+
+  EXPECT_LT(0U, ciphertext.size());
+
+  std::string decrypted;
+  EXPECT_TRUE(encryptor.Decrypt(ciphertext, &decrypted));
+
+  EXPECT_EQ(plaintext, decrypted);
+}
+
+TEST(EncryptorTest, DecryptWrongKey) {
+  scoped_ptr<crypto::SymmetricKey> key(
+      crypto::SymmetricKey::DeriveKeyFromPassword(
+          crypto::SymmetricKey::AES, "password", "saltiest", 1000, 256));
+  EXPECT_TRUE(key.get());
+
+  // A wrong key that can be detected by implementations that validate every
+  // byte in the padding.
+  scoped_ptr<crypto::SymmetricKey> wrong_key(
+        crypto::SymmetricKey::DeriveKeyFromPassword(
+            crypto::SymmetricKey::AES, "wrongword", "sweetest", 1000, 256));
+  EXPECT_TRUE(wrong_key.get());
+
+  // A wrong key that can't be detected by any implementation.  The password
+  // "wrongword;" would also work.
+  scoped_ptr<crypto::SymmetricKey> wrong_key2(
+        crypto::SymmetricKey::DeriveKeyFromPassword(
+            crypto::SymmetricKey::AES, "wrongword+", "sweetest", 1000, 256));
+  EXPECT_TRUE(wrong_key2.get());
+
+  // A wrong key that can be detected by all implementations.
+  scoped_ptr<crypto::SymmetricKey> wrong_key3(
+        crypto::SymmetricKey::DeriveKeyFromPassword(
+            crypto::SymmetricKey::AES, "wrongwordx", "sweetest", 1000, 256));
+  EXPECT_TRUE(wrong_key3.get());
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long as the cipher block size.
+  std::string iv("the iv: 16 bytes");
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_TRUE(encryptor.Init(key.get(), crypto::Encryptor::CBC, iv));
+
+  std::string plaintext("this is the plaintext");
+  std::string ciphertext;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+
+  static const unsigned char expected_ciphertext[] = {
+    0x7D, 0x67, 0x5B, 0x53, 0xE6, 0xD8, 0x0F, 0x27,
+    0x74, 0xB1, 0x90, 0xFE, 0x6E, 0x58, 0x4A, 0xA0,
+    0x0E, 0x35, 0xE3, 0x01, 0xC0, 0xFE, 0x9A, 0xD8,
+    0x48, 0x1D, 0x42, 0xB0, 0xBA, 0x21, 0xB2, 0x0C
+  };
+
+  ASSERT_EQ(arraysize(expected_ciphertext), ciphertext.size());
+  for (size_t i = 0; i < ciphertext.size(); ++i) {
+    ASSERT_EQ(expected_ciphertext[i],
+              static_cast<unsigned char>(ciphertext[i]));
+  }
+
+  std::string decrypted;
+
+  // This wrong key causes the last padding byte to be 5, which is a valid
+  // padding length, and the second to last padding byte to be 137, which is
+  // invalid.  If an implementation simply uses the last padding byte to
+  // determine the padding length without checking every padding byte,
+  // Encryptor::Decrypt() will still return true.  This is the case for NSS
+  // (crbug.com/124434).
+#if !defined(USE_NSS) && !defined(OS_WIN) && !defined(OS_MACOSX)
+  crypto::Encryptor decryptor;
+  EXPECT_TRUE(decryptor.Init(wrong_key.get(), crypto::Encryptor::CBC, iv));
+  EXPECT_FALSE(decryptor.Decrypt(ciphertext, &decrypted));
+#endif
+
+  // This demonstrates that not all wrong keys can be detected by padding
+  // error. This wrong key causes the last padding byte to be 1, which is
+  // a valid padding block of length 1.
+  crypto::Encryptor decryptor2;
+  EXPECT_TRUE(decryptor2.Init(wrong_key2.get(), crypto::Encryptor::CBC, iv));
+  EXPECT_TRUE(decryptor2.Decrypt(ciphertext, &decrypted));
+
+  // This wrong key causes the last padding byte to be 253, which should be
+  // rejected by all implementations.
+  crypto::Encryptor decryptor3;
+  EXPECT_TRUE(decryptor3.Init(wrong_key3.get(), crypto::Encryptor::CBC, iv));
+  EXPECT_FALSE(decryptor3.Decrypt(ciphertext, &decrypted));
+}
+
+namespace {
+
+// From NIST SP 800-38a test cast:
+// - F.5.1 CTR-AES128.Encrypt
+// - F.5.6 CTR-AES256.Encrypt
+// http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
+const unsigned char kAES128CTRKey[] = {
+  0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+  0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+};
+
+const unsigned char kAES256CTRKey[] = {
+  0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe,
+  0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
+  0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7,
+  0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4
+};
+
+const unsigned char kAESCTRInitCounter[] = {
+  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+};
+
+const unsigned char kAESCTRPlaintext[] = {
+  // Block #1
+  0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+  0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+  // Block #2
+  0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+  0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+  // Block #3
+  0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+  0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+  // Block #4
+  0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+  0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+};
+
+const unsigned char kAES128CTRCiphertext[] = {
+  // Block #1
+  0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+  0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+  // Block #2
+  0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+  0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+  // Block #3
+  0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+  0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+  // Block #4
+  0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+  0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+};
+
+const unsigned char kAES256CTRCiphertext[] = {
+  // Block #1
+  0x60, 0x1e, 0xc3, 0x13, 0x77, 0x57, 0x89, 0xa5,
+  0xb7, 0xa7, 0xf5, 0x04, 0xbb, 0xf3, 0xd2, 0x28,
+  // Block #2
+  0xf4, 0x43, 0xe3, 0xca, 0x4d, 0x62, 0xb5, 0x9a,
+  0xca, 0x84, 0xe9, 0x90, 0xca, 0xca, 0xf5, 0xc5,
+  // Block #3
+  0x2b, 0x09, 0x30, 0xda, 0xa2, 0x3d, 0xe9, 0x4c,
+  0xe8, 0x70, 0x17, 0xba, 0x2d, 0x84, 0x98, 0x8d,
+  // Block #4
+  0xdf, 0xc9, 0xc5, 0x8d, 0xb6, 0x7a, 0xad, 0xa6,
+  0x13, 0xc2, 0xdd, 0x08, 0x45, 0x79, 0x41, 0xa6
+};
+
+void TestAESCTREncrypt(
+    const unsigned char* key, size_t key_size,
+    const unsigned char* init_counter, size_t init_counter_size,
+    const unsigned char* plaintext, size_t plaintext_size,
+    const unsigned char* ciphertext, size_t ciphertext_size) {
+  std::string key_str(reinterpret_cast<const char*>(key), key_size);
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key_str));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  EXPECT_TRUE(encryptor.Init(sym_key.get(), crypto::Encryptor::CTR, ""));
+
+  base::StringPiece init_counter_str(
+      reinterpret_cast<const char*>(init_counter), init_counter_size);
+  base::StringPiece plaintext_str(
+      reinterpret_cast<const char*>(plaintext), plaintext_size);
+
+  EXPECT_TRUE(encryptor.SetCounter(init_counter_str));
+  std::string encrypted;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext_str, &encrypted));
+
+  EXPECT_EQ(ciphertext_size, encrypted.size());
+  EXPECT_EQ(0, memcmp(encrypted.data(), ciphertext, encrypted.size()));
+
+  std::string decrypted;
+  EXPECT_TRUE(encryptor.SetCounter(init_counter_str));
+  EXPECT_TRUE(encryptor.Decrypt(encrypted, &decrypted));
+
+  EXPECT_EQ(plaintext_str, decrypted);
+}
+
+void TestAESCTRMultipleDecrypt(
+    const unsigned char* key, size_t key_size,
+    const unsigned char* init_counter, size_t init_counter_size,
+    const unsigned char* plaintext, size_t plaintext_size,
+    const unsigned char* ciphertext, size_t ciphertext_size) {
+  std::string key_str(reinterpret_cast<const char*>(key), key_size);
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key_str));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  EXPECT_TRUE(encryptor.Init(sym_key.get(), crypto::Encryptor::CTR, ""));
+
+  // Counter is set only once.
+  EXPECT_TRUE(encryptor.SetCounter(base::StringPiece(
+      reinterpret_cast<const char*>(init_counter), init_counter_size)));
+
+  std::string ciphertext_str(reinterpret_cast<const char*>(ciphertext),
+                             ciphertext_size);
+
+  int kTestDecryptSizes[] = { 32, 16, 8 };
+
+  int offset = 0;
+  for (size_t i = 0; i < arraysize(kTestDecryptSizes); ++i) {
+    std::string decrypted;
+    size_t len = kTestDecryptSizes[i];
+    EXPECT_TRUE(
+        encryptor.Decrypt(ciphertext_str.substr(offset, len), &decrypted));
+    EXPECT_EQ(len, decrypted.size());
+    EXPECT_EQ(0, memcmp(decrypted.data(), plaintext + offset, len));
+    offset += len;
+  }
+}
+
+}  // namespace
+
+TEST(EncryptorTest, EncryptAES128CTR) {
+  TestAESCTREncrypt(
+      kAES128CTRKey, arraysize(kAES128CTRKey),
+      kAESCTRInitCounter, arraysize(kAESCTRInitCounter),
+      kAESCTRPlaintext, arraysize(kAESCTRPlaintext),
+      kAES128CTRCiphertext, arraysize(kAES128CTRCiphertext));
+}
+
+TEST(EncryptorTest, EncryptAES256CTR) {
+  TestAESCTREncrypt(
+      kAES256CTRKey, arraysize(kAES256CTRKey),
+      kAESCTRInitCounter, arraysize(kAESCTRInitCounter),
+      kAESCTRPlaintext, arraysize(kAESCTRPlaintext),
+      kAES256CTRCiphertext, arraysize(kAES256CTRCiphertext));
+}
+
+TEST(EncryptorTest, EncryptAES128CTR_MultipleDecrypt) {
+  TestAESCTRMultipleDecrypt(
+      kAES128CTRKey, arraysize(kAES128CTRKey),
+      kAESCTRInitCounter, arraysize(kAESCTRInitCounter),
+      kAESCTRPlaintext, arraysize(kAESCTRPlaintext),
+      kAES128CTRCiphertext, arraysize(kAES128CTRCiphertext));
+}
+
+TEST(EncryptorTest, EncryptAES256CTR_MultipleDecrypt) {
+  TestAESCTRMultipleDecrypt(
+      kAES256CTRKey, arraysize(kAES256CTRKey),
+      kAESCTRInitCounter, arraysize(kAESCTRInitCounter),
+      kAESCTRPlaintext, arraysize(kAESCTRPlaintext),
+      kAES256CTRCiphertext, arraysize(kAES256CTRCiphertext));
+}
+
+TEST(EncryptorTest, EncryptDecryptCTR) {
+  scoped_ptr<crypto::SymmetricKey> key(
+      crypto::SymmetricKey::GenerateRandomKey(crypto::SymmetricKey::AES, 128));
+
+  EXPECT_TRUE(key.get());
+  const std::string kInitialCounter = "0000000000000000";
+
+  crypto::Encryptor encryptor;
+  EXPECT_TRUE(encryptor.Init(key.get(), crypto::Encryptor::CTR, ""));
+  EXPECT_TRUE(encryptor.SetCounter(kInitialCounter));
+
+  std::string plaintext("normal plaintext of random length");
+  std::string ciphertext;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+  EXPECT_LT(0U, ciphertext.size());
+
+  std::string decrypted;
+  EXPECT_TRUE(encryptor.SetCounter(kInitialCounter));
+  EXPECT_TRUE(encryptor.Decrypt(ciphertext, &decrypted));
+  EXPECT_EQ(plaintext, decrypted);
+
+  plaintext = "0123456789012345";
+  EXPECT_TRUE(encryptor.SetCounter(kInitialCounter));
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+  EXPECT_LT(0U, ciphertext.size());
+
+  EXPECT_TRUE(encryptor.SetCounter(kInitialCounter));
+  EXPECT_TRUE(encryptor.Decrypt(ciphertext, &decrypted));
+  EXPECT_EQ(plaintext, decrypted);
+}
+
+TEST(EncryptorTest, CTRCounter) {
+  const int kCounterSize = 16;
+  const unsigned char kTest1[] =
+      {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+  unsigned char buf[16];
+
+  // Increment 10 times.
+  crypto::Encryptor::Counter counter1(
+      std::string(reinterpret_cast<const char*>(kTest1), kCounterSize));
+  for (int i = 0; i < 10; ++i)
+    counter1.Increment();
+  counter1.Write(buf);
+  EXPECT_EQ(0, memcmp(buf, kTest1, 15));
+  EXPECT_TRUE(buf[15] == 10);
+
+  // Check corner cases.
+  const unsigned char kTest2[] = {
+      0, 0, 0, 0, 0, 0, 0, 0,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+  };
+  const unsigned char kExpect2[] =
+      {0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0};
+  crypto::Encryptor::Counter counter2(
+      std::string(reinterpret_cast<const char*>(kTest2), kCounterSize));
+  counter2.Increment();
+  counter2.Write(buf);
+  EXPECT_EQ(0, memcmp(buf, kExpect2, kCounterSize));
+
+  const unsigned char kTest3[] = {
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+  };
+  const unsigned char kExpect3[] =
+      {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+  crypto::Encryptor::Counter counter3(
+      std::string(reinterpret_cast<const char*>(kTest3), kCounterSize));
+  counter3.Increment();
+  counter3.Write(buf);
+  EXPECT_EQ(0, memcmp(buf, kExpect3, kCounterSize));
+}
+
+// TODO(wtc): add more known-answer tests.  Test vectors are available from
+// http://www.ietf.org/rfc/rfc3602
+// http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
+// http://gladman.plushost.co.uk/oldsite/AES/index.php
+// http://csrc.nist.gov/groups/STM/cavp/documents/aes/KAT_AES.zip
+
+// NIST SP 800-38A test vector F.2.5 CBC-AES256.Encrypt.
+TEST(EncryptorTest, EncryptAES256CBC) {
+  // From NIST SP 800-38a test cast F.2.5 CBC-AES256.Encrypt.
+  static const unsigned char kRawKey[] = {
+    0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe,
+    0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
+    0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7,
+    0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4
+  };
+  static const unsigned char kRawIv[] = {
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+  };
+  static const unsigned char kRawPlaintext[] = {
+    // Block #1
+    0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+    0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+    // Block #2
+    0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+    0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+    // Block #3
+    0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+    0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+    // Block #4
+    0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+    0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10,
+  };
+  static const unsigned char kRawCiphertext[] = {
+    // Block #1
+    0xf5, 0x8c, 0x4c, 0x04, 0xd6, 0xe5, 0xf1, 0xba,
+    0x77, 0x9e, 0xab, 0xfb, 0x5f, 0x7b, 0xfb, 0xd6,
+    // Block #2
+    0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d,
+    0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d,
+    // Block #3
+    0x39, 0xf2, 0x33, 0x69, 0xa9, 0xd9, 0xba, 0xcf,
+    0xa5, 0x30, 0xe2, 0x63, 0x04, 0x23, 0x14, 0x61,
+    // Block #4
+    0xb2, 0xeb, 0x05, 0xe2, 0xc3, 0x9b, 0xe9, 0xfc,
+    0xda, 0x6c, 0x19, 0x07, 0x8c, 0x6a, 0x9d, 0x1b,
+    // PKCS #5 padding, encrypted.
+    0x3f, 0x46, 0x17, 0x96, 0xd6, 0xb0, 0xd6, 0xb2,
+    0xe0, 0xc2, 0xa7, 0x2b, 0x4d, 0x80, 0xe6, 0x44
+  };
+
+  std::string key(reinterpret_cast<const char*>(kRawKey), sizeof(kRawKey));
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long a the cipher block size.
+  std::string iv(reinterpret_cast<const char*>(kRawIv), sizeof(kRawIv));
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_TRUE(encryptor.Init(sym_key.get(), crypto::Encryptor::CBC, iv));
+
+  std::string plaintext(reinterpret_cast<const char*>(kRawPlaintext),
+                        sizeof(kRawPlaintext));
+  std::string ciphertext;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+
+  EXPECT_EQ(sizeof(kRawCiphertext), ciphertext.size());
+  EXPECT_EQ(0, memcmp(ciphertext.data(), kRawCiphertext, ciphertext.size()));
+
+  std::string decrypted;
+  EXPECT_TRUE(encryptor.Decrypt(ciphertext, &decrypted));
+
+  EXPECT_EQ(plaintext, decrypted);
+}
+
+// Expected output derived from the NSS implementation.
+TEST(EncryptorTest, EncryptAES128CBCRegression) {
+  std::string key = "128=SixteenBytes";
+  std::string iv = "Sweet Sixteen IV";
+  std::string plaintext = "Plain text with a g-clef U+1D11E \360\235\204\236";
+  std::string expected_ciphertext_hex =
+      "D4A67A0BA33C30F207344D81D1E944BBE65587C3D7D9939A"
+      "C070C62B9C15A3EA312EA4AD1BC7929F4D3C16B03AD5ADA8";
+
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long a the cipher block size.
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_TRUE(encryptor.Init(sym_key.get(), crypto::Encryptor::CBC, iv));
+
+  std::string ciphertext;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+  EXPECT_EQ(expected_ciphertext_hex, base::HexEncode(ciphertext.data(),
+                                                     ciphertext.size()));
+
+  std::string decrypted;
+  EXPECT_TRUE(encryptor.Decrypt(ciphertext, &decrypted));
+  EXPECT_EQ(plaintext, decrypted);
+}
+
+// Symmetric keys with an unsupported size should be rejected. Whether they are
+// rejected by SymmetricKey::Import or Encryptor::Init depends on the platform.
+TEST(EncryptorTest, UnsupportedKeySize) {
+  std::string key = "7 = bad";
+  std::string iv = "Sweet Sixteen IV";
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key));
+  if (!sym_key.get())
+    return;
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long as the cipher block size.
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_FALSE(encryptor.Init(sym_key.get(), crypto::Encryptor::CBC, iv));
+}
+
+TEST(EncryptorTest, UnsupportedIV) {
+  std::string key = "128=SixteenBytes";
+  std::string iv = "OnlyForteen :(";
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  EXPECT_FALSE(encryptor.Init(sym_key.get(), crypto::Encryptor::CBC, iv));
+}
+
+TEST(EncryptorTest, EmptyEncrypt) {
+  std::string key = "128=SixteenBytes";
+  std::string iv = "Sweet Sixteen IV";
+  std::string plaintext;
+  std::string expected_ciphertext_hex = "8518B8878D34E7185E300D0FCC426396";
+
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long a the cipher block size.
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_TRUE(encryptor.Init(sym_key.get(), crypto::Encryptor::CBC, iv));
+
+  std::string ciphertext;
+  EXPECT_TRUE(encryptor.Encrypt(plaintext, &ciphertext));
+  EXPECT_EQ(expected_ciphertext_hex, base::HexEncode(ciphertext.data(),
+                                                     ciphertext.size()));
+}
+
+TEST(EncryptorTest, CipherTextNotMultipleOfBlockSize) {
+  std::string key = "128=SixteenBytes";
+  std::string iv = "Sweet Sixteen IV";
+
+  scoped_ptr<crypto::SymmetricKey> sym_key(crypto::SymmetricKey::Import(
+      crypto::SymmetricKey::AES, key));
+  ASSERT_TRUE(sym_key.get());
+
+  crypto::Encryptor encryptor;
+  // The IV must be exactly as long a the cipher block size.
+  EXPECT_EQ(16U, iv.size());
+  EXPECT_TRUE(encryptor.Init(sym_key.get(), crypto::Encryptor::CBC, iv));
+
+  // Use a separately allocated array to improve the odds of the memory tools
+  // catching invalid accesses.
+  //
+  // Otherwise when using std::string as the other tests do, accesses several
+  // bytes off the end of the buffer may fall inside the reservation of
+  // the string and not be detected.
+  scoped_ptr<char[]> ciphertext(new char[1]);
+
+  std::string plaintext;
+  EXPECT_FALSE(
+      encryptor.Decrypt(base::StringPiece(ciphertext.get(), 1), &plaintext));
+}
diff --git a/crypto/ghash.cc b/crypto/ghash.cc
new file mode 100644
index 0000000..1acd474
--- /dev/null
+++ b/crypto/ghash.cc
@@ -0,0 +1,259 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/ghash.h"
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "base/sys_byteorder.h"
+
+namespace crypto {
+
+// GaloisHash is a polynomial authenticator that works in GF(2^128).
+//
+// Elements of the field are represented in `little-endian' order (which
+// matches the description in the paper[1]), thus the most significant bit is
+// the right-most bit. (This is backwards from the way that everybody else does
+// it.)
+//
+// We store field elements in a pair of such `little-endian' uint64s. So the
+// value one is represented by {low = 2**63, high = 0} and doubling a value
+// involves a *right* shift.
+//
+// [1] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
+
+namespace {
+
+// Get64 reads a 64-bit, big-endian number from |bytes|.
+uint64 Get64(const uint8 bytes[8]) {
+  uint64 t;
+  memcpy(&t, bytes, sizeof(t));
+  return base::NetToHost64(t);
+}
+
+// Put64 writes |x| to |bytes| as a 64-bit, big-endian number.
+void Put64(uint8 bytes[8], uint64 x) {
+  x = base::HostToNet64(x);
+  memcpy(bytes, &x, sizeof(x));
+}
+
+// Reverse reverses the order of the bits of 4-bit number in |i|.
+int Reverse(int i) {
+  i = ((i << 2) & 0xc) | ((i >> 2) & 0x3);
+  i = ((i << 1) & 0xa) | ((i >> 1) & 0x5);
+  return i;
+}
+
+}  // namespace
+
+GaloisHash::GaloisHash(const uint8 key[16]) {
+  Reset();
+
+  // We precompute 16 multiples of |key|. However, when we do lookups into this
+  // table we'll be using bits from a field element and therefore the bits will
+  // be in the reverse order. So normally one would expect, say, 4*key to be in
+  // index 4 of the table but due to this bit ordering it will actually be in
+  // index 0010 (base 2) = 2.
+  FieldElement x = {Get64(key), Get64(key+8)};
+  product_table_[0].low = 0;
+  product_table_[0].hi = 0;
+  product_table_[Reverse(1)] = x;
+
+  for (int i = 0; i < 16; i += 2) {
+    product_table_[Reverse(i)] = Double(product_table_[Reverse(i/2)]);
+    product_table_[Reverse(i+1)] = Add(product_table_[Reverse(i)], x);
+  }
+}
+
+void GaloisHash::Reset() {
+  state_ = kHashingAdditionalData;
+  additional_bytes_ = 0;
+  ciphertext_bytes_ = 0;
+  buf_used_ = 0;
+  y_.low = 0;
+  y_.hi = 0;
+}
+
+void GaloisHash::UpdateAdditional(const uint8* data, size_t length) {
+  DCHECK_EQ(state_, kHashingAdditionalData);
+  additional_bytes_ += length;
+  Update(data, length);
+}
+
+void GaloisHash::UpdateCiphertext(const uint8* data, size_t length) {
+  if (state_ == kHashingAdditionalData) {
+    // If there's any remaining additional data it's zero padded to the next
+    // full block.
+    if (buf_used_ > 0) {
+      memset(&buf_[buf_used_], 0, sizeof(buf_)-buf_used_);
+      UpdateBlocks(buf_, 1);
+      buf_used_ = 0;
+    }
+    state_ = kHashingCiphertext;
+  }
+
+  DCHECK_EQ(state_, kHashingCiphertext);
+  ciphertext_bytes_ += length;
+  Update(data, length);
+}
+
+void GaloisHash::Finish(void* output, size_t len) {
+  DCHECK(state_ != kComplete);
+
+  if (buf_used_ > 0) {
+    // If there's any remaining data (additional data or ciphertext), it's zero
+    // padded to the next full block.
+    memset(&buf_[buf_used_], 0, sizeof(buf_)-buf_used_);
+    UpdateBlocks(buf_, 1);
+    buf_used_ = 0;
+  }
+
+  state_ = kComplete;
+
+  // The lengths of the additional data and ciphertext are included as the last
+  // block. The lengths are the number of bits.
+  y_.low ^= additional_bytes_*8;
+  y_.hi ^= ciphertext_bytes_*8;
+  MulAfterPrecomputation(product_table_, &y_);
+
+  uint8 *result, result_tmp[16];
+  if (len >= 16) {
+    result = reinterpret_cast<uint8*>(output);
+  } else {
+    result = result_tmp;
+  }
+
+  Put64(result, y_.low);
+  Put64(result + 8, y_.hi);
+
+  if (len < 16)
+    memcpy(output, result_tmp, len);
+}
+
+// static
+GaloisHash::FieldElement GaloisHash::Add(
+    const FieldElement& x,
+    const FieldElement& y) {
+  // Addition in a characteristic 2 field is just XOR.
+  FieldElement z = {x.low^y.low, x.hi^y.hi};
+  return z;
+}
+
+// static
+GaloisHash::FieldElement GaloisHash::Double(const FieldElement& x) {
+  const bool msb_set = x.hi & 1;
+
+  FieldElement xx;
+  // Because of the bit-ordering, doubling is actually a right shift.
+  xx.hi = x.hi >> 1;
+  xx.hi |= x.low << 63;
+  xx.low = x.low >> 1;
+
+  // If the most-significant bit was set before shifting then it, conceptually,
+  // becomes a term of x^128. This is greater than the irreducible polynomial
+  // so the result has to be reduced. The irreducible polynomial is
+  // 1+x+x^2+x^7+x^128. We can subtract that to eliminate the term at x^128
+  // which also means subtracting the other four terms. In characteristic 2
+  // fields, subtraction == addition == XOR.
+  if (msb_set)
+    xx.low ^= 0xe100000000000000ULL;
+
+  return xx;
+}
+
+void GaloisHash::MulAfterPrecomputation(const FieldElement* table,
+                                        FieldElement* x) {
+  FieldElement z = {0, 0};
+
+  // In order to efficiently multiply, we use the precomputed table of i*key,
+  // for i in 0..15, to handle four bits at a time. We could obviously use
+  // larger tables for greater speedups but the next convenient table size is
+  // 4K, which is a little large.
+  //
+  // In other fields one would use bit positions spread out across the field in
+  // order to reduce the number of doublings required. However, in
+  // characteristic 2 fields, repeated doublings are exceptionally cheap and
+  // it's not worth spending more precomputation time to eliminate them.
+  for (unsigned i = 0; i < 2; i++) {
+    uint64 word;
+    if (i == 0) {
+      word = x->hi;
+    } else {
+      word = x->low;
+    }
+
+    for (unsigned j = 0; j < 64; j += 4) {
+      Mul16(&z);
+      // the values in |table| are ordered for little-endian bit positions. See
+      // the comment in the constructor.
+      const FieldElement& t = table[word & 0xf];
+      z.low ^= t.low;
+      z.hi ^= t.hi;
+      word >>= 4;
+    }
+  }
+
+  *x = z;
+}
+
+// kReductionTable allows for rapid multiplications by 16. A multiplication by
+// 16 is a right shift by four bits, which results in four bits at 2**128.
+// These terms have to be eliminated by dividing by the irreducible polynomial.
+// In GHASH, the polynomial is such that all the terms occur in the
+// least-significant 8 bits, save for the term at x^128. Therefore we can
+// precompute the value to be added to the field element for each of the 16 bit
+// patterns at 2**128 and the values fit within 12 bits.
+static const uint16 kReductionTable[16] = {
+  0x0000, 0x1c20, 0x3840, 0x2460, 0x7080, 0x6ca0, 0x48c0, 0x54e0,
+  0xe100, 0xfd20, 0xd940, 0xc560, 0x9180, 0x8da0, 0xa9c0, 0xb5e0,
+};
+
+// static
+void GaloisHash::Mul16(FieldElement* x) {
+  const unsigned msw = x->hi & 0xf;
+  x->hi >>= 4;
+  x->hi |= x->low << 60;
+  x->low >>= 4;
+  x->low ^= static_cast<uint64>(kReductionTable[msw]) << 48;
+}
+
+void GaloisHash::UpdateBlocks(const uint8* bytes, size_t num_blocks) {
+  for (size_t i = 0; i < num_blocks; i++) {
+    y_.low ^= Get64(bytes);
+    bytes += 8;
+    y_.hi ^= Get64(bytes);
+    bytes += 8;
+    MulAfterPrecomputation(product_table_, &y_);
+  }
+}
+
+void GaloisHash::Update(const uint8* data, size_t length) {
+  if (buf_used_ > 0) {
+    const size_t n = std::min(length, sizeof(buf_) - buf_used_);
+    memcpy(&buf_[buf_used_], data, n);
+    buf_used_ += n;
+    length -= n;
+    data += n;
+
+    if (buf_used_ == sizeof(buf_)) {
+      UpdateBlocks(buf_, 1);
+      buf_used_ = 0;
+    }
+  }
+
+  if (length >= 16) {
+    const size_t n = length / 16;
+    UpdateBlocks(data, n);
+    length -= n*16;
+    data += n*16;
+  }
+
+  if (length > 0) {
+    memcpy(buf_, data, length);
+    buf_used_ = length;
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/ghash.h b/crypto/ghash.h
new file mode 100644
index 0000000..6dc247b
--- /dev/null
+++ b/crypto/ghash.h
@@ -0,0 +1,86 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// GaloisHash implements the polynomial authenticator part of GCM as specified
+// in http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
+// Specifically it implements the GHASH function, defined in section 2.3 of
+// that document.
+//
+// In SP-800-38D, GHASH is defined differently and takes only a single data
+// argument. But it is always called with an argument of a certain form:
+//   GHASH_H (A || 0^v || C || 0^u || [len(A)]_64 || [len(C)]_64)
+// This mirrors how the gcm-revised-spec.pdf version of GHASH handles its two
+// data arguments. The two GHASH functions therefore differ only in whether the
+// data is formatted inside or outside of the function.
+//
+// WARNING: do not use this as a generic authenticator. Polynomial
+// authenticators must be used in the correct manner and any use outside of GCM
+// requires careful consideration.
+//
+// WARNING: this code is not constant time. However, in all likelihood, nor is
+// the implementation of AES that is used.
+class CRYPTO_EXPORT_PRIVATE GaloisHash {
+ public:
+  explicit GaloisHash(const uint8 key[16]);
+
+  // Reset prepares to digest a fresh message with the same key. This is more
+  // efficient than creating a fresh object.
+  void Reset();
+
+  // UpdateAdditional hashes in `additional' data. This is data that is not
+  // encrypted, but is covered by the authenticator. All additional data must
+  // be written before any ciphertext is written.
+  void UpdateAdditional(const uint8* data, size_t length);
+
+  // UpdateCiphertext hashes in ciphertext to be authenticated.
+  void UpdateCiphertext(const uint8* data, size_t length);
+
+  // Finish completes the hash computation and writes at most |len| bytes of
+  // the result to |output|.
+  void Finish(void* output, size_t len);
+
+ private:
+  enum State {
+    kHashingAdditionalData,
+    kHashingCiphertext,
+    kComplete,
+  };
+
+  struct FieldElement {
+    uint64 low, hi;
+  };
+
+  // Add returns |x|+|y|.
+  static FieldElement Add(const FieldElement& x, const FieldElement& y);
+  // Double returns 2*|x|.
+  static FieldElement Double(const FieldElement& x);
+  // MulAfterPrecomputation sets |x| = |x|*h where h is |table[1]| and
+  // table[i] = i*h for i=0..15.
+  static void MulAfterPrecomputation(const FieldElement* table,
+                                     FieldElement* x);
+  // Mul16 sets |x| = 16*|x|.
+  static void Mul16(FieldElement* x);
+
+  // UpdateBlocks processes |num_blocks| 16-bytes blocks from |bytes|.
+  void UpdateBlocks(const uint8* bytes, size_t num_blocks);
+  // Update processes |length| bytes from |bytes| and calls UpdateBlocks on as
+  // much data as possible. It uses |buf_| to buffer any remaining data and
+  // always consumes all of |bytes|.
+  void Update(const uint8* bytes, size_t length);
+
+  FieldElement y_;
+  State state_;
+  size_t additional_bytes_;
+  size_t ciphertext_bytes_;
+  uint8 buf_[16];
+  size_t buf_used_;
+  FieldElement product_table_[16];
+};
+
+}  // namespace crypto
diff --git a/crypto/ghash_unittest.cc b/crypto/ghash_unittest.cc
new file mode 100644
index 0000000..5dd88ed
--- /dev/null
+++ b/crypto/ghash_unittest.cc
@@ -0,0 +1,148 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <algorithm>
+
+#include "crypto/ghash.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+namespace {
+
+// Test vectors are taken from Appendix B of
+// http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
+
+static const uint8 kKey1[16] = {
+  0x66, 0xe9, 0x4b, 0xd4, 0xef, 0x8a, 0x2c, 0x3b,
+  0x88, 0x4c, 0xfa, 0x59, 0xca, 0x34, 0x2b, 0x2e,
+};
+
+static const uint8 kCiphertext2[] = {
+  0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
+  0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78,
+};
+
+static const uint8 kKey3[16] = {
+  0xb8, 0x3b, 0x53, 0x37, 0x08, 0xbf, 0x53, 0x5d,
+  0x0a, 0xa6, 0xe5, 0x29, 0x80, 0xd5, 0x3b, 0x78,
+};
+
+static const uint8 kCiphertext3[] = {
+  0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
+  0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
+  0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
+  0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
+  0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
+  0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
+  0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
+  0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85,
+};
+
+static const uint8 kAdditional4[] = {
+  0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
+  0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
+  0xab, 0xad, 0xda, 0xd2,
+};
+
+struct TestCase {
+  const uint8* key;
+  const uint8* additional;
+  unsigned additional_length;
+  const uint8* ciphertext;
+  unsigned ciphertext_length;
+  const uint8 expected[16];
+};
+
+static const TestCase kTestCases[] = {
+  {
+    kKey1,
+    NULL,
+    0,
+    NULL,
+    0,
+    {
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    },
+  },
+  {
+    kKey1,
+    NULL,
+    0,
+    kCiphertext2,
+    sizeof(kCiphertext2),
+    {
+      0xf3, 0x8c, 0xbb, 0x1a, 0xd6, 0x92, 0x23, 0xdc,
+      0xc3, 0x45, 0x7a, 0xe5, 0xb6, 0xb0, 0xf8, 0x85,
+    },
+  },
+  {
+    kKey3,
+    NULL,
+    0,
+    kCiphertext3,
+    sizeof(kCiphertext3),
+    {
+      0x7f, 0x1b, 0x32, 0xb8, 0x1b, 0x82, 0x0d, 0x02,
+      0x61, 0x4f, 0x88, 0x95, 0xac, 0x1d, 0x4e, 0xac,
+    },
+  },
+  {
+    kKey3,
+    kAdditional4,
+    sizeof(kAdditional4),
+    kCiphertext3,
+    sizeof(kCiphertext3) - 4,
+    {
+      0x69, 0x8e, 0x57, 0xf7, 0x0e, 0x6e, 0xcc, 0x7f,
+      0xd9, 0x46, 0x3b, 0x72, 0x60, 0xa9, 0xae, 0x5f,
+    },
+  },
+};
+
+TEST(GaloisHash, TestCases) {
+  uint8 out[16];
+
+  for (size_t i = 0; i < arraysize(kTestCases); ++i) {
+    const TestCase& test = kTestCases[i];
+
+    GaloisHash hash(test.key);
+    if (test.additional_length)
+      hash.UpdateAdditional(test.additional, test.additional_length);
+    if (test.ciphertext_length)
+      hash.UpdateCiphertext(test.ciphertext, test.ciphertext_length);
+    hash.Finish(out, sizeof(out));
+    EXPECT_TRUE(0 == memcmp(out, test.expected, 16));
+  }
+}
+
+TEST(GaloisHash, VaryLengths) {
+  uint8 out[16];
+
+  for (size_t chunk_size = 1; chunk_size < 16; chunk_size++) {
+    for (size_t i = 0; i < arraysize(kTestCases); ++i) {
+      const TestCase& test = kTestCases[i];
+
+      GaloisHash hash(test.key);
+      for (size_t i = 0; i < test.additional_length;) {
+        size_t n = std::min(test.additional_length - i, chunk_size);
+        hash.UpdateAdditional(test.additional + i, n);
+        i += n;
+      }
+      for (size_t i = 0; i < test.ciphertext_length;) {
+        size_t n = std::min(test.ciphertext_length - i, chunk_size);
+        hash.UpdateCiphertext(test.ciphertext + i, n);
+        i += n;
+      }
+      hash.Finish(out, sizeof(out));
+      EXPECT_TRUE(0 == memcmp(out, test.expected, 16));
+    }
+  }
+}
+
+}  // namespace
+
+}  // namespace crypto
diff --git a/crypto/hkdf.cc b/crypto/hkdf.cc
new file mode 100644
index 0000000..82aae24
--- /dev/null
+++ b/crypto/hkdf.cc
@@ -0,0 +1,107 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/hkdf.h"
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/hmac.h"
+
+namespace crypto {
+
+const size_t kSHA256HashLength = 32;
+
+HKDF::HKDF(const base::StringPiece& secret,
+           const base::StringPiece& salt,
+           const base::StringPiece& info,
+           size_t key_bytes_to_generate,
+           size_t iv_bytes_to_generate,
+           size_t subkey_secret_bytes_to_generate) {
+  // https://tools.ietf.org/html/rfc5869#section-2.2
+  base::StringPiece actual_salt = salt;
+  char zeros[kSHA256HashLength];
+  if (actual_salt.empty()) {
+    // If salt is not given, HashLength zeros are used.
+    memset(zeros, 0, sizeof(zeros));
+    actual_salt.set(zeros, sizeof(zeros));
+  }
+
+  // Perform the Extract step to transform the input key and
+  // salt into the pseudorandom key (PRK) used for Expand.
+  HMAC prk_hmac(HMAC::SHA256);
+  bool result = prk_hmac.Init(actual_salt);
+  DCHECK(result);
+
+  // |prk| is a pseudorandom key (of kSHA256HashLength octets).
+  uint8 prk[kSHA256HashLength];
+  DCHECK_EQ(sizeof(prk), prk_hmac.DigestLength());
+  result = prk_hmac.Sign(secret, prk, sizeof(prk));
+  DCHECK(result);
+
+  // https://tools.ietf.org/html/rfc5869#section-2.3
+  // Perform the Expand phase to turn the pseudorandom key
+  // and info into the output keying material.
+  const size_t material_length = 2 * key_bytes_to_generate +
+                                 2 * iv_bytes_to_generate +
+                                 subkey_secret_bytes_to_generate;
+  const size_t n = (material_length + kSHA256HashLength-1) /
+                   kSHA256HashLength;
+  DCHECK_LT(n, 256u);
+
+  output_.resize(n * kSHA256HashLength);
+  base::StringPiece previous;
+
+  scoped_ptr<char[]> buf(new char[kSHA256HashLength + info.size() + 1]);
+  uint8 digest[kSHA256HashLength];
+
+  HMAC hmac(HMAC::SHA256);
+  result = hmac.Init(prk, sizeof(prk));
+  DCHECK(result);
+
+  for (size_t i = 0; i < n; i++) {
+    memcpy(buf.get(), previous.data(), previous.size());
+    size_t j = previous.size();
+    memcpy(buf.get() + j, info.data(), info.size());
+    j += info.size();
+    buf[j++] = static_cast<char>(i + 1);
+
+    result = hmac.Sign(base::StringPiece(buf.get(), j), digest, sizeof(digest));
+    DCHECK(result);
+
+    memcpy(&output_[i*sizeof(digest)], digest, sizeof(digest));
+    previous = base::StringPiece(reinterpret_cast<char*>(digest),
+                                 sizeof(digest));
+  }
+
+  size_t j = 0;
+  // On Windows, when the size of output_ is zero, dereference of 0'th element
+  // results in a crash. C++11 solves this problem by adding a data() getter
+  // method to std::vector.
+  if (key_bytes_to_generate) {
+    client_write_key_ = base::StringPiece(reinterpret_cast<char*>(&output_[j]),
+                                          key_bytes_to_generate);
+    j += key_bytes_to_generate;
+    server_write_key_ = base::StringPiece(reinterpret_cast<char*>(&output_[j]),
+                                          key_bytes_to_generate);
+    j += key_bytes_to_generate;
+  }
+
+  if (iv_bytes_to_generate) {
+    client_write_iv_ = base::StringPiece(reinterpret_cast<char*>(&output_[j]),
+                                         iv_bytes_to_generate);
+    j += iv_bytes_to_generate;
+    server_write_iv_ = base::StringPiece(reinterpret_cast<char*>(&output_[j]),
+                                         iv_bytes_to_generate);
+    j += iv_bytes_to_generate;
+  }
+  if (subkey_secret_bytes_to_generate) {
+    subkey_secret_ = base::StringPiece(reinterpret_cast<char*>(&output_[j]),
+                                       subkey_secret_bytes_to_generate);
+  }
+}
+
+HKDF::~HKDF() {
+}
+
+}  // namespace crypto
diff --git a/crypto/hkdf.h b/crypto/hkdf.h
new file mode 100644
index 0000000..e91bccf
--- /dev/null
+++ b/crypto/hkdf.h
@@ -0,0 +1,71 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_HKDF_H_
+#define CRYPTO_HKDF_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/strings/string_piece.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// HKDF implements the key derivation function specified in RFC 5869 (using
+// SHA-256) and outputs key material, as needed by QUIC.
+// See https://tools.ietf.org/html/rfc5869 for details.
+class CRYPTO_EXPORT HKDF {
+ public:
+  // |secret|: the input shared secret (or, from RFC 5869, the IKM).
+  // |salt|: an (optional) public salt / non-secret random value. While
+  // optional, callers are strongly recommended to provide a salt. There is no
+  // added security value in making this larger than the SHA-256 block size of
+  // 64 bytes.
+  // |info|: an (optional) label to distinguish different uses of HKDF. It is
+  // optional context and application specific information (can be a zero-length
+  // string).
+  // |key_bytes_to_generate|: the number of bytes of key material to generate
+  // for both client and server.
+  // |iv_bytes_to_generate|: the number of bytes of IV to generate for both
+  // client and server.
+  // |subkey_secret_bytes_to_generate|: the number of bytes of subkey secret to
+  // generate, shared between client and server.
+  HKDF(const base::StringPiece& secret,
+       const base::StringPiece& salt,
+       const base::StringPiece& info,
+       size_t key_bytes_to_generate,
+       size_t iv_bytes_to_generate,
+       size_t subkey_secret_bytes_to_generate);
+  ~HKDF();
+
+  base::StringPiece client_write_key() const {
+    return client_write_key_;
+  }
+  base::StringPiece client_write_iv() const {
+    return client_write_iv_;
+  }
+  base::StringPiece server_write_key() const {
+    return server_write_key_;
+  }
+  base::StringPiece server_write_iv() const {
+    return server_write_iv_;
+  }
+  base::StringPiece subkey_secret() const {
+    return subkey_secret_;
+  }
+
+ private:
+  std::vector<uint8> output_;
+
+  base::StringPiece client_write_key_;
+  base::StringPiece server_write_key_;
+  base::StringPiece client_write_iv_;
+  base::StringPiece server_write_iv_;
+  base::StringPiece subkey_secret_;
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_HKDF_H_
diff --git a/crypto/hkdf_unittest.cc b/crypto/hkdf_unittest.cc
new file mode 100644
index 0000000..bcb19c5
--- /dev/null
+++ b/crypto/hkdf_unittest.cc
@@ -0,0 +1,94 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/hkdf.h"
+
+#include <string>
+
+#include "base/strings/string_number_conversions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using crypto::HKDF;
+
+namespace test {
+namespace {
+
+struct HKDFTest {
+  const char* key_hex;
+  const char* salt_hex;
+  const char* info_hex;
+  const char* output_hex;
+};
+
+// These test cases are taken from
+// https://tools.ietf.org/html/rfc5869#appendix-A.
+static const HKDFTest kHKDFTests[] = {{
+    "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
+    "000102030405060708090a0b0c",
+    "f0f1f2f3f4f5f6f7f8f9",
+    "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5"
+    "b887185865",
+  }, {
+    "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2021222324"
+    "25262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f40414243444546474849"
+    "4a4b4c4d4e4f",
+    "606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f8081828384"
+    "85868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9"
+    "aaabacadaeaf",
+    "b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4"
+    "d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9"
+    "fafbfcfdfeff",
+    "b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c59045a99ca"
+    "c7827271cb41c65e590e09da3275600c2f09b8367793a9aca3db71cc30c58179ec3e87c14c"
+    "01d5c1f3434f1d87",
+  }, {
+    "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
+    "",
+    "",
+    "8da4e775a563c18f715f802a063c5a31b8a11f5c5ee1879ec3454e5f3c738d2d9d201395fa"
+    "a4b61a96c8",
+  },
+};
+
+TEST(HKDFTest, HKDF) {
+  for (size_t i = 0; i < arraysize(kHKDFTests); i++) {
+    const HKDFTest& test(kHKDFTests[i]);
+    SCOPED_TRACE(i);
+
+    std::vector<uint8> data;
+    ASSERT_TRUE(base::HexStringToBytes(test.key_hex, &data));
+    const std::string key(reinterpret_cast<char*>(&data[0]), data.size());
+
+    data.clear();
+    // |salt_hex| is optional and may be empty.
+    std::string salt(test.salt_hex);
+    if (!salt.empty()) {
+      ASSERT_TRUE(base::HexStringToBytes(salt, &data));
+      salt.assign(reinterpret_cast<char*>(&data[0]), data.size());
+    }
+
+    data.clear();
+    // |info_hex| is optional and may be empty.
+    std::string info(test.info_hex);
+    if (!info.empty()) {
+      ASSERT_TRUE(base::HexStringToBytes(info, &data));
+      info.assign(reinterpret_cast<char*>(&data[0]), data.size());
+    }
+
+    data.clear();
+    ASSERT_TRUE(base::HexStringToBytes(test.output_hex, &data));
+    const std::string expected(reinterpret_cast<char*>(&data[0]), data.size());
+
+    // We set the key_length to the length of the expected output and then take
+    // the result from the first key, which is the client write key.
+    HKDF hkdf(key, salt, info, expected.size(), 0, 0);
+
+    ASSERT_EQ(expected.size(), hkdf.client_write_key().size());
+    EXPECT_EQ(0, memcmp(expected.data(), hkdf.client_write_key().data(),
+                        expected.size()));
+  }
+}
+
+}  // namespace
+}  // namespace test
diff --git a/crypto/hmac.cc b/crypto/hmac.cc
new file mode 100644
index 0000000..c9a2b74
--- /dev/null
+++ b/crypto/hmac.cc
@@ -0,0 +1,57 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/hmac.h"
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "crypto/secure_util.h"
+#include "crypto/symmetric_key.h"
+
+namespace crypto {
+
+bool HMAC::Init(SymmetricKey* key) {
+  std::string raw_key;
+  bool result = key->GetRawKey(&raw_key) && Init(raw_key);
+  // Zero out key copy.  This might get optimized away, but one can hope.
+  // Using std::string to store key info at all is a larger problem.
+  std::fill(raw_key.begin(), raw_key.end(), 0);
+  return result;
+}
+
+size_t HMAC::DigestLength() const {
+  switch (hash_alg_) {
+    case SHA1:
+      return 20;
+    case SHA256:
+      return 32;
+    default:
+      NOTREACHED();
+      return 0;
+  }
+}
+
+bool HMAC::Verify(const base::StringPiece& data,
+                  const base::StringPiece& digest) const {
+  if (digest.size() != DigestLength())
+    return false;
+  return VerifyTruncated(data, digest);
+}
+
+bool HMAC::VerifyTruncated(const base::StringPiece& data,
+                           const base::StringPiece& digest) const {
+  if (digest.empty())
+    return false;
+  size_t digest_length = DigestLength();
+  scoped_ptr<unsigned char[]> computed_digest(
+      new unsigned char[digest_length]);
+  if (!Sign(data, computed_digest.get(), digest_length))
+    return false;
+
+  return SecureMemEqual(digest.data(), computed_digest.get(),
+                        std::min(digest.size(), digest_length));
+}
+
+}  // namespace crypto
diff --git a/crypto/hmac.h b/crypto/hmac.h
new file mode 100644
index 0000000..c7b22fa
--- /dev/null
+++ b/crypto/hmac.h
@@ -0,0 +1,93 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Utility class for calculating the HMAC for a given message. We currently
+// only support SHA1 for the hash algorithm, but this can be extended easily.
+
+#ifndef CRYPTO_HMAC_H_
+#define CRYPTO_HMAC_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_piece.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Simplify the interface and reduce includes by abstracting out the internals.
+struct HMACPlatformData;
+class SymmetricKey;
+
+class CRYPTO_EXPORT HMAC {
+ public:
+  // The set of supported hash functions. Extend as required.
+  enum HashAlgorithm {
+    SHA1,
+    SHA256,
+  };
+
+  explicit HMAC(HashAlgorithm hash_alg);
+  ~HMAC();
+
+  // Returns the length of digest that this HMAC will create.
+  size_t DigestLength() const;
+
+  // TODO(abarth): Add a PreferredKeyLength() member function.
+
+  // Initializes this instance using |key| of the length |key_length|. Call Init
+  // only once. It returns false on the second or later calls.
+  //
+  // NOTE: the US Federal crypto standard FIPS 198, Section 3 says:
+  //   The size of the key, K, shall be equal to or greater than L/2, where L
+  //   is the size of the hash function output.
+  // In FIPS 198-1 (and SP-800-107, which describes key size recommendations),
+  // this requirement is gone.  But a system crypto library may still enforce
+  // this old requirement.  If the key is shorter than this recommended value,
+  // Init() may fail.
+  bool Init(const unsigned char* key, size_t key_length) WARN_UNUSED_RESULT;
+
+  // Initializes this instance using |key|. Call Init
+  // only once. It returns false on the second or later calls.
+  bool Init(SymmetricKey* key) WARN_UNUSED_RESULT;
+
+  // Initializes this instance using |key|. Call Init only once. It returns
+  // false on the second or later calls.
+  bool Init(const base::StringPiece& key) WARN_UNUSED_RESULT {
+    return Init(reinterpret_cast<const unsigned char*>(key.data()),
+                key.size());
+  }
+
+  // Calculates the HMAC for the message in |data| using the algorithm supplied
+  // to the constructor and the key supplied to the Init method. The HMAC is
+  // returned in |digest|, which has |digest_length| bytes of storage available.
+  bool Sign(const base::StringPiece& data, unsigned char* digest,
+            size_t digest_length) const WARN_UNUSED_RESULT;
+
+  // Verifies that the HMAC for the message in |data| equals the HMAC provided
+  // in |digest|, using the algorithm supplied to the constructor and the key
+  // supplied to the Init method. Use of this method is strongly recommended
+  // over using Sign() with a manual comparison (such as memcmp), as such
+  // comparisons may result in side-channel disclosures, such as timing, that
+  // undermine the cryptographic integrity. |digest| must be exactly
+  // |DigestLength()| bytes long.
+  bool Verify(const base::StringPiece& data,
+              const base::StringPiece& digest) const WARN_UNUSED_RESULT;
+
+  // Verifies a truncated HMAC, behaving identical to Verify(), except
+  // that |digest| is allowed to be smaller than |DigestLength()|.
+  bool VerifyTruncated(
+      const base::StringPiece& data,
+      const base::StringPiece& digest) const WARN_UNUSED_RESULT;
+
+ private:
+  HashAlgorithm hash_alg_;
+  scoped_ptr<HMACPlatformData> plat_;
+
+  DISALLOW_COPY_AND_ASSIGN(HMAC);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_HMAC_H_
diff --git a/crypto/hmac_nss.cc b/crypto/hmac_nss.cc
new file mode 100644
index 0000000..e14282c
--- /dev/null
+++ b/crypto/hmac_nss.cc
@@ -0,0 +1,117 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/hmac.h"
+
+#include <nss.h>
+#include <pk11pub.h>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/nss_util.h"
+#include "crypto/scoped_nss_types.h"
+
+namespace crypto {
+
+struct HMACPlatformData {
+  CK_MECHANISM_TYPE mechanism_;
+  ScopedPK11Slot slot_;
+  ScopedPK11SymKey sym_key_;
+};
+
+HMAC::HMAC(HashAlgorithm hash_alg)
+    : hash_alg_(hash_alg), plat_(new HMACPlatformData()) {
+  // Only SHA-1 and SHA-256 hash algorithms are supported.
+  switch (hash_alg_) {
+    case SHA1:
+      plat_->mechanism_ = CKM_SHA_1_HMAC;
+      break;
+    case SHA256:
+      plat_->mechanism_ = CKM_SHA256_HMAC;
+      break;
+    default:
+      NOTREACHED() << "Unsupported hash algorithm";
+      break;
+  }
+}
+
+HMAC::~HMAC() {
+}
+
+bool HMAC::Init(const unsigned char *key, size_t key_length) {
+  EnsureNSSInit();
+
+  if (plat_->slot_.get()) {
+    // Init must not be called more than twice on the same HMAC object.
+    NOTREACHED();
+    return false;
+  }
+
+  plat_->slot_.reset(PK11_GetInternalSlot());
+  if (!plat_->slot_.get()) {
+    NOTREACHED();
+    return false;
+  }
+
+  SECItem key_item;
+  key_item.type = siBuffer;
+  key_item.data = const_cast<unsigned char*>(key);  // NSS API isn't const.
+  key_item.len = key_length;
+
+  plat_->sym_key_.reset(PK11_ImportSymKey(plat_->slot_.get(),
+                                          plat_->mechanism_,
+                                          PK11_OriginUnwrap,
+                                          CKA_SIGN,
+                                          &key_item,
+                                          NULL));
+  if (!plat_->sym_key_.get()) {
+    NOTREACHED();
+    return false;
+  }
+
+  return true;
+}
+
+bool HMAC::Sign(const base::StringPiece& data,
+                unsigned char* digest,
+                size_t digest_length) const {
+  if (!plat_->sym_key_.get()) {
+    // Init has not been called before Sign.
+    NOTREACHED();
+    return false;
+  }
+
+  SECItem param = { siBuffer, NULL, 0 };
+  ScopedPK11Context context(PK11_CreateContextBySymKey(plat_->mechanism_,
+                                                       CKA_SIGN,
+                                                       plat_->sym_key_.get(),
+                                                       &param));
+  if (!context.get()) {
+    NOTREACHED();
+    return false;
+  }
+
+  if (PK11_DigestBegin(context.get()) != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+
+  if (PK11_DigestOp(context.get(),
+                    reinterpret_cast<const unsigned char*>(data.data()),
+                    data.length()) != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+
+  unsigned int len = 0;
+  if (PK11_DigestFinal(context.get(),
+                       digest, &len, digest_length) != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/hmac_openssl.cc b/crypto/hmac_openssl.cc
new file mode 100644
index 0000000..92eea19
--- /dev/null
+++ b/crypto/hmac_openssl.cc
@@ -0,0 +1,64 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/hmac.h"
+
+#include <openssl/hmac.h>
+
+#include <algorithm>
+#include <vector>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/stl_util.h"
+#include "crypto/openssl_util.h"
+
+namespace crypto {
+
+struct HMACPlatformData {
+  std::vector<unsigned char> key;
+};
+
+HMAC::HMAC(HashAlgorithm hash_alg)
+    : hash_alg_(hash_alg), plat_(new HMACPlatformData()) {
+  // Only SHA-1 and SHA-256 hash algorithms are supported now.
+  DCHECK(hash_alg_ == SHA1 || hash_alg_ == SHA256);
+}
+
+bool HMAC::Init(const unsigned char* key, size_t key_length) {
+  // Init must not be called more than once on the same HMAC object.
+  DCHECK(plat_->key.empty());
+
+  plat_->key.assign(key, key + key_length);
+  if (key_length == 0) {
+    // Special-case: if the key is empty, use a key with one zero
+    // byte. OpenSSL's HMAC function breaks when passed a NULL key. (It calls
+    // HMAC_Init_ex which treats a NULL key as having already been initialized
+    // with a key previously.) HMAC pads keys with zeros, so this key is
+    // equivalent.
+    plat_->key.push_back(0);
+  }
+  return true;
+}
+
+HMAC::~HMAC() {
+  // Zero out key copy.
+  plat_->key.assign(plat_->key.size(), 0);
+  STLClearObject(&plat_->key);
+}
+
+bool HMAC::Sign(const base::StringPiece& data,
+                unsigned char* digest,
+                size_t digest_length) const {
+  DCHECK(!plat_->key.empty());  // Init must be called before Sign.
+
+  ScopedOpenSSLSafeSizeBuffer<EVP_MAX_MD_SIZE> result(digest, digest_length);
+  return !!::HMAC(hash_alg_ == SHA1 ? EVP_sha1() : EVP_sha256(),
+                &plat_->key[0], plat_->key.size(),
+                reinterpret_cast<const unsigned char*>(data.data()),
+                data.size(),
+                result.safe_buffer(), NULL);
+}
+
+}  // namespace crypto
diff --git a/crypto/hmac_unittest.cc b/crypto/hmac_unittest.cc
new file mode 100644
index 0000000..174c323
--- /dev/null
+++ b/crypto/hmac_unittest.cc
@@ -0,0 +1,295 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+
+#include "crypto/hmac.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+static const size_t kSHA1DigestSize = 20;
+static const size_t kSHA256DigestSize = 32;
+
+static const char* kSimpleKey =
+    "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+    "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+    "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+    "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+    "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA";
+static const size_t kSimpleKeyLength = 80;
+
+static const struct {
+  const char *data;
+  const int data_len;
+  const char *digest;
+} kSimpleHmacCases[] = {
+  { "Test Using Larger Than Block-Size Key - Hash Key First", 54,
+    "\xAA\x4A\xE5\xE1\x52\x72\xD0\x0E\x95\x70\x56\x37\xCE\x8A\x3B\x55"
+        "\xED\x40\x21\x12" },
+  { "Test Using Larger Than Block-Size Key and Larger "
+        "Than One Block-Size Data", 73,
+    "\xE8\xE9\x9D\x0F\x45\x23\x7D\x78\x6D\x6B\xBA\xA7\x96\x5C\x78\x08"
+        "\xBB\xFF\x1A\x91" }
+};
+
+TEST(HMACTest, HmacSafeBrowsingResponseTest) {
+  const int kKeySize = 16;
+
+  // Client key.
+  const unsigned char kClientKey[kKeySize] =
+      { 0xbf, 0xf6, 0x83, 0x4b, 0x3e, 0xa3, 0x23, 0xdd,
+        0x96, 0x78, 0x70, 0x8e, 0xa1, 0x9d, 0x3b, 0x40 };
+
+  // Expected HMAC result using kMessage and kClientKey.
+  const unsigned char kReceivedHmac[kSHA1DigestSize] =
+      { 0xb9, 0x3c, 0xd6, 0xf0, 0x49, 0x47, 0xe2, 0x52,
+        0x59, 0x7a, 0xbd, 0x1f, 0x2b, 0x4c, 0x83, 0xad,
+        0x86, 0xd2, 0x48, 0x85 };
+
+  const char kMessage[] =
+"n:1896\ni:goog-malware-shavar\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shav"
+"ar_s_445-450\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_439-444\nu:s"
+".ytimg.com/safebrowsing/rd/goog-malware-shavar_s_437\nu:s.ytimg.com/safebrowsi"
+"ng/rd/goog-malware-shavar_s_436\nu:s.ytimg.com/safebrowsing/rd/goog-malware-sh"
+"avar_s_433-435\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_431\nu:s.y"
+"timg.com/safebrowsing/rd/goog-malware-shavar_s_430\nu:s.ytimg.com/safebrowsing"
+"/rd/goog-malware-shavar_s_429\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shav"
+"ar_s_428\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_426\nu:s.ytimg.c"
+"om/safebrowsing/rd/goog-malware-shavar_s_424\nu:s.ytimg.com/safebrowsing/rd/go"
+"og-malware-shavar_s_423\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_4"
+"22\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_420\nu:s.ytimg.com/saf"
+"ebrowsing/rd/goog-malware-shavar_s_419\nu:s.ytimg.com/safebrowsing/rd/goog-mal"
+"ware-shavar_s_414\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_409-411"
+"\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_405\nu:s.ytimg.com/safeb"
+"rowsing/rd/goog-malware-shavar_s_404\nu:s.ytimg.com/safebrowsing/rd/goog-malwa"
+"re-shavar_s_402\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_s_401\nu:s."
+"ytimg.com/safebrowsing/rd/goog-malware-shavar_a_973-978\nu:s.ytimg.com/safebro"
+"wsing/rd/goog-malware-shavar_a_937-972\nu:s.ytimg.com/safebrowsing/rd/goog-mal"
+"ware-shavar_a_931-936\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_a_925"
+"-930\nu:s.ytimg.com/safebrowsing/rd/goog-malware-shavar_a_919-924\ni:goog-phis"
+"h-shavar\nu:s.ytimg.com/safebrowsing/rd/goog-phish-shavar_a_2633\nu:s.ytimg.co"
+"m/safebrowsing/rd/goog-phish-shavar_a_2632\nu:s.ytimg.com/safebrowsing/rd/goog"
+"-phish-shavar_a_2629-2631\nu:s.ytimg.com/safebrowsing/rd/goog-phish-shavar_a_2"
+"626-2628\nu:s.ytimg.com/safebrowsing/rd/goog-phish-shavar_a_2625\n";
+
+  std::string message_data(kMessage);
+
+  crypto::HMAC hmac(crypto::HMAC::SHA1);
+  ASSERT_TRUE(hmac.Init(kClientKey, kKeySize));
+  unsigned char calculated_hmac[kSHA1DigestSize];
+
+  EXPECT_TRUE(hmac.Sign(message_data, calculated_hmac, kSHA1DigestSize));
+  EXPECT_EQ(0, memcmp(kReceivedHmac, calculated_hmac, kSHA1DigestSize));
+}
+
+// Test cases from RFC 2202 section 3
+TEST(HMACTest, RFC2202TestCases) {
+  const struct {
+    const char *key;
+    const int key_len;
+    const char *data;
+    const int data_len;
+    const char *digest;
+  } cases[] = {
+    { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B"
+          "\x0B\x0B\x0B\x0B", 20,
+      "Hi There", 8,
+      "\xB6\x17\x31\x86\x55\x05\x72\x64\xE2\x8B\xC0\xB6\xFB\x37\x8C\x8E"
+          "\xF1\x46\xBE\x00" },
+    { "Jefe", 4,
+      "what do ya want for nothing?", 28,
+      "\xEF\xFC\xDF\x6A\xE5\xEB\x2F\xA2\xD2\x74\x16\xD5\xF1\x84\xDF\x9C"
+          "\x25\x9A\x7C\x79" },
+    { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA", 20,
+      "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+          "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+          "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
+          "\xDD\xDD", 50,
+      "\x12\x5D\x73\x42\xB9\xAC\x11\xCD\x91\xA3\x9A\xF4\x8A\xA1\x7B\x4F"
+          "\x63\xF1\x75\xD3" },
+    { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10"
+          "\x11\x12\x13\x14\x15\x16\x17\x18\x19", 25,
+      "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+          "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+          "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
+          "\xCD\xCD", 50,
+      "\x4C\x90\x07\xF4\x02\x62\x50\xC6\xBC\x84\x14\xF9\xBF\x50\xC8\x6C"
+          "\x2D\x72\x35\xDA" },
+    { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C"
+          "\x0C\x0C\x0C\x0C", 20,
+      "Test With Truncation", 20,
+      "\x4C\x1A\x03\x42\x4B\x55\xE0\x7F\xE7\xF2\x7B\xE1\xD5\x8B\xB9\x32"
+          "\x4A\x9A\x5A\x04" },
+    { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA",
+      80,
+      "Test Using Larger Than Block-Size Key - Hash Key First", 54,
+      "\xAA\x4A\xE5\xE1\x52\x72\xD0\x0E\x95\x70\x56\x37\xCE\x8A\x3B\x55"
+          "\xED\x40\x21\x12" },
+    { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
+          "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA",
+      80,
+      "Test Using Larger Than Block-Size Key and Larger "
+          "Than One Block-Size Data", 73,
+      "\xE8\xE9\x9D\x0F\x45\x23\x7D\x78\x6D\x6B\xBA\xA7\x96\x5C\x78\x08"
+          "\xBB\xFF\x1A\x91" }
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
+    crypto::HMAC hmac(crypto::HMAC::SHA1);
+    ASSERT_TRUE(hmac.Init(reinterpret_cast<const unsigned char*>(cases[i].key),
+                          cases[i].key_len));
+    std::string data_string(cases[i].data, cases[i].data_len);
+    unsigned char digest[kSHA1DigestSize];
+    EXPECT_TRUE(hmac.Sign(data_string, digest, kSHA1DigestSize));
+    EXPECT_EQ(0, memcmp(cases[i].digest, digest, kSHA1DigestSize));
+  }
+}
+
+// TODO(wtc): add other test vectors from RFC 4231.
+TEST(HMACTest, RFC4231TestCase6) {
+  unsigned char key[131];
+  for (size_t i = 0; i < sizeof(key); ++i)
+    key[i] = 0xaa;
+
+  std::string data = "Test Using Larger Than Block-Size Key - Hash Key First";
+  ASSERT_EQ(54U, data.size());
+
+  static unsigned char kKnownHMACSHA256[] = {
+    0x60, 0xe4, 0x31, 0x59, 0x1e, 0xe0, 0xb6, 0x7f,
+    0x0d, 0x8a, 0x26, 0xaa, 0xcb, 0xf5, 0xb7, 0x7f,
+    0x8e, 0x0b, 0xc6, 0x21, 0x37, 0x28, 0xc5, 0x14,
+    0x05, 0x46, 0x04, 0x0f, 0x0e, 0xe3, 0x7f, 0x54
+  };
+
+  crypto::HMAC hmac(crypto::HMAC::SHA256);
+  ASSERT_TRUE(hmac.Init(key, sizeof(key)));
+  unsigned char calculated_hmac[kSHA256DigestSize];
+
+  EXPECT_EQ(kSHA256DigestSize, hmac.DigestLength());
+  EXPECT_TRUE(hmac.Sign(data, calculated_hmac, kSHA256DigestSize));
+  EXPECT_EQ(0, memcmp(kKnownHMACSHA256, calculated_hmac, kSHA256DigestSize));
+}
+
+// Based on NSS's FIPS HMAC power-up self-test.
+TEST(HMACTest, NSSFIPSPowerUpSelfTest) {
+  static const char kKnownMessage[] =
+      "The test message for the MD2, MD5, and SHA-1 hashing algorithms.";
+
+  static const unsigned char kKnownSecretKey[] = {
+    0x46, 0x69, 0x72, 0x65, 0x66, 0x6f, 0x78, 0x20,
+    0x61, 0x6e, 0x64, 0x20, 0x54, 0x68, 0x75, 0x6e,
+    0x64, 0x65, 0x72, 0x42, 0x69, 0x72, 0x64, 0x20,
+    0x61, 0x72, 0x65, 0x20, 0x61, 0x77, 0x65, 0x73,
+    0x6f, 0x6d, 0x65, 0x21, 0x00
+  };
+
+  static const size_t kKnownSecretKeySize = sizeof(kKnownSecretKey);
+
+  // HMAC-SHA-1 known answer (20 bytes).
+  static const unsigned char kKnownHMACSHA1[] = {
+    0xd5, 0x85, 0xf6, 0x5b, 0x39, 0xfa, 0xb9, 0x05,
+    0x3b, 0x57, 0x1d, 0x61, 0xe7, 0xb8, 0x84, 0x1e,
+    0x5d, 0x0e, 0x1e, 0x11
+  };
+
+  // HMAC-SHA-256 known answer (32 bytes).
+  static const unsigned char kKnownHMACSHA256[] = {
+    0x05, 0x75, 0x9a, 0x9e, 0x70, 0x5e, 0xe7, 0x44,
+    0xe2, 0x46, 0x4b, 0x92, 0x22, 0x14, 0x22, 0xe0,
+    0x1b, 0x92, 0x8a, 0x0c, 0xfe, 0xf5, 0x49, 0xe9,
+    0xa7, 0x1b, 0x56, 0x7d, 0x1d, 0x29, 0x40, 0x48
+  };
+
+  std::string message_data(kKnownMessage);
+
+  crypto::HMAC hmac(crypto::HMAC::SHA1);
+  ASSERT_TRUE(hmac.Init(kKnownSecretKey, kKnownSecretKeySize));
+  unsigned char calculated_hmac[kSHA1DigestSize];
+
+  EXPECT_EQ(kSHA1DigestSize, hmac.DigestLength());
+  EXPECT_TRUE(hmac.Sign(message_data, calculated_hmac, kSHA1DigestSize));
+  EXPECT_EQ(0, memcmp(kKnownHMACSHA1, calculated_hmac, kSHA1DigestSize));
+  EXPECT_TRUE(hmac.Verify(
+      message_data,
+      base::StringPiece(reinterpret_cast<const char*>(kKnownHMACSHA1),
+                        kSHA1DigestSize)));
+  EXPECT_TRUE(hmac.VerifyTruncated(
+      message_data,
+      base::StringPiece(reinterpret_cast<const char*>(kKnownHMACSHA1),
+                        kSHA1DigestSize / 2)));
+
+  crypto::HMAC hmac2(crypto::HMAC::SHA256);
+  ASSERT_TRUE(hmac2.Init(kKnownSecretKey, kKnownSecretKeySize));
+  unsigned char calculated_hmac2[kSHA256DigestSize];
+
+  EXPECT_TRUE(hmac2.Sign(message_data, calculated_hmac2, kSHA256DigestSize));
+  EXPECT_EQ(0, memcmp(kKnownHMACSHA256, calculated_hmac2, kSHA256DigestSize));
+}
+
+TEST(HMACTest, HMACObjectReuse) {
+  crypto::HMAC hmac(crypto::HMAC::SHA1);
+  ASSERT_TRUE(
+      hmac.Init(reinterpret_cast<const unsigned char*>(kSimpleKey),
+                kSimpleKeyLength));
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSimpleHmacCases); ++i) {
+    std::string data_string(kSimpleHmacCases[i].data,
+                            kSimpleHmacCases[i].data_len);
+    unsigned char digest[kSHA1DigestSize];
+    EXPECT_TRUE(hmac.Sign(data_string, digest, kSHA1DigestSize));
+    EXPECT_EQ(0, memcmp(kSimpleHmacCases[i].digest, digest, kSHA1DigestSize));
+  }
+}
+
+TEST(HMACTest, Verify) {
+  crypto::HMAC hmac(crypto::HMAC::SHA1);
+  ASSERT_TRUE(
+      hmac.Init(reinterpret_cast<const unsigned char*>(kSimpleKey),
+                kSimpleKeyLength));
+  const char empty_digest[kSHA1DigestSize] = { 0 };
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSimpleHmacCases); ++i) {
+    // Expected results
+    EXPECT_TRUE(hmac.Verify(
+        base::StringPiece(kSimpleHmacCases[i].data,
+                          kSimpleHmacCases[i].data_len),
+        base::StringPiece(kSimpleHmacCases[i].digest,
+                          kSHA1DigestSize)));
+    // Mismatched size
+    EXPECT_FALSE(hmac.Verify(
+        base::StringPiece(kSimpleHmacCases[i].data,
+                          kSimpleHmacCases[i].data_len),
+        base::StringPiece(kSimpleHmacCases[i].data,
+                          kSimpleHmacCases[i].data_len)));
+
+    // Expected size, mismatched data
+    EXPECT_FALSE(hmac.Verify(
+        base::StringPiece(kSimpleHmacCases[i].data,
+                          kSimpleHmacCases[i].data_len),
+        base::StringPiece(empty_digest, kSHA1DigestSize)));
+  }
+}
+
+TEST(HMACTest, EmptyKey) {
+  // Test vector from https://en.wikipedia.org/wiki/HMAC
+  const char* kExpectedDigest =
+      "\xFB\xDB\x1D\x1B\x18\xAA\x6C\x08\x32\x4B\x7D\x64\xB7\x1F\xB7\x63"
+      "\x70\x69\x0E\x1D";
+  base::StringPiece data("");
+
+  crypto::HMAC hmac(crypto::HMAC::SHA1);
+  ASSERT_TRUE(hmac.Init(NULL, 0));
+
+  unsigned char digest[kSHA1DigestSize];
+  EXPECT_TRUE(hmac.Sign(data, digest, kSHA1DigestSize));
+  EXPECT_EQ(0, memcmp(kExpectedDigest, digest, kSHA1DigestSize));
+
+  EXPECT_TRUE(hmac.Verify(
+      data, base::StringPiece(kExpectedDigest, kSHA1DigestSize)));
+}
diff --git a/crypto/hmac_win.cc b/crypto/hmac_win.cc
new file mode 100644
index 0000000..ba7d827
--- /dev/null
+++ b/crypto/hmac_win.cc
@@ -0,0 +1,209 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/hmac.h"
+
+#include <windows.h>
+#include <wincrypt.h>
+
+#include <algorithm>
+#include <vector>
+
+#include "base/logging.h"
+#include "crypto/scoped_capi_types.h"
+#include "crypto/third_party/nss/chromium-blapi.h"
+#include "crypto/third_party/nss/chromium-sha256.h"
+
+namespace crypto {
+
+namespace {
+
+// Implementation of HMAC-SHA-256:
+//
+// SHA-256 is supported in Windows XP SP3 or later.  We still need to support
+// Windows XP SP2, so unfortunately we have to implement HMAC-SHA-256 here.
+
+enum {
+  SHA256_BLOCK_SIZE = 64  // Block size (in bytes) of the input to SHA-256.
+};
+
+// NSS doesn't accept size_t for text size, divide the data into smaller
+// chunks as needed.
+void Wrapped_SHA256_Update(SHA256Context* ctx, const unsigned char* text,
+                           size_t text_len) {
+  const unsigned int kChunkSize = 1 << 30;
+  while (text_len > kChunkSize) {
+    SHA256_Update(ctx, text, kChunkSize);
+    text += kChunkSize;
+    text_len -= kChunkSize;
+  }
+  SHA256_Update(ctx, text, (unsigned int)text_len);
+}
+
+// See FIPS 198: The Keyed-Hash Message Authentication Code (HMAC).
+void ComputeHMACSHA256(const unsigned char* key, size_t key_len,
+                       const unsigned char* text, size_t text_len,
+                       unsigned char* output, size_t output_len) {
+  SHA256Context ctx;
+
+  // Pre-process the key, if necessary.
+  unsigned char key0[SHA256_BLOCK_SIZE];
+  if (key_len > SHA256_BLOCK_SIZE) {
+    SHA256_Begin(&ctx);
+    Wrapped_SHA256_Update(&ctx, key, key_len);
+    SHA256_End(&ctx, key0, NULL, SHA256_LENGTH);
+    memset(key0 + SHA256_LENGTH, 0, SHA256_BLOCK_SIZE - SHA256_LENGTH);
+  } else {
+    memcpy(key0, key, key_len);
+    if (key_len < SHA256_BLOCK_SIZE)
+      memset(key0 + key_len, 0, SHA256_BLOCK_SIZE - key_len);
+  }
+
+  unsigned char padded_key[SHA256_BLOCK_SIZE];
+  unsigned char inner_hash[SHA256_LENGTH];
+
+  // XOR key0 with ipad.
+  for (int i = 0; i < SHA256_BLOCK_SIZE; ++i)
+    padded_key[i] = key0[i] ^ 0x36;
+
+  // Compute the inner hash.
+  SHA256_Begin(&ctx);
+  SHA256_Update(&ctx, padded_key, SHA256_BLOCK_SIZE);
+  Wrapped_SHA256_Update(&ctx, text, text_len);
+  SHA256_End(&ctx, inner_hash, NULL, SHA256_LENGTH);
+
+  // XOR key0 with opad.
+  for (int i = 0; i < SHA256_BLOCK_SIZE; ++i)
+    padded_key[i] = key0[i] ^ 0x5c;
+
+  // Compute the outer hash.
+  SHA256_Begin(&ctx);
+  SHA256_Update(&ctx, padded_key, SHA256_BLOCK_SIZE);
+  SHA256_Update(&ctx, inner_hash, SHA256_LENGTH);
+  SHA256_End(&ctx, output, NULL, (unsigned int) output_len);
+}
+
+}  // namespace
+
+struct HMACPlatformData {
+  ~HMACPlatformData() {
+    if (!raw_key_.empty()) {
+      SecureZeroMemory(&raw_key_[0], raw_key_.size());
+    }
+
+    // Destroy the key before releasing the provider.
+    key_.reset();
+  }
+
+  ScopedHCRYPTPROV provider_;
+  ScopedHCRYPTKEY key_;
+
+  // For HMAC-SHA-256 only.
+  std::vector<unsigned char> raw_key_;
+};
+
+HMAC::HMAC(HashAlgorithm hash_alg)
+    : hash_alg_(hash_alg), plat_(new HMACPlatformData()) {
+  // Only SHA-1 and SHA-256 hash algorithms are supported now.
+  DCHECK(hash_alg_ == SHA1 || hash_alg_ == SHA256);
+}
+
+bool HMAC::Init(const unsigned char* key, size_t key_length) {
+  if (plat_->provider_ || plat_->key_ || !plat_->raw_key_.empty()) {
+    // Init must not be called more than once on the same HMAC object.
+    NOTREACHED();
+    return false;
+  }
+
+  if (hash_alg_ == SHA256) {
+    plat_->raw_key_.assign(key, key + key_length);
+    return true;
+  }
+
+  if (!CryptAcquireContext(plat_->provider_.receive(), NULL, NULL,
+                           PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+    NOTREACHED();
+    return false;
+  }
+
+  // This code doesn't work on Win2k because PLAINTEXTKEYBLOB and
+  // CRYPT_IPSEC_HMAC_KEY are not supported on Windows 2000.  PLAINTEXTKEYBLOB
+  // allows the import of an unencrypted key.  For Win2k support, a cubmbersome
+  // exponent-of-one key procedure must be used:
+  //     http://support.microsoft.com/kb/228786/en-us
+  // CRYPT_IPSEC_HMAC_KEY allows keys longer than 16 bytes.
+
+  struct KeyBlob {
+    BLOBHEADER header;
+    DWORD key_size;
+    BYTE key_data[1];
+  };
+  size_t key_blob_size = std::max(offsetof(KeyBlob, key_data) + key_length,
+                                  sizeof(KeyBlob));
+  std::vector<BYTE> key_blob_storage = std::vector<BYTE>(key_blob_size);
+  KeyBlob* key_blob = reinterpret_cast<KeyBlob*>(&key_blob_storage[0]);
+  key_blob->header.bType = PLAINTEXTKEYBLOB;
+  key_blob->header.bVersion = CUR_BLOB_VERSION;
+  key_blob->header.reserved = 0;
+  key_blob->header.aiKeyAlg = CALG_RC2;
+  key_blob->key_size = static_cast<DWORD>(key_length);
+  memcpy(key_blob->key_data, key, key_length);
+
+  if (!CryptImportKey(plat_->provider_, &key_blob_storage[0],
+                      (DWORD)key_blob_storage.size(), 0,
+                      CRYPT_IPSEC_HMAC_KEY, plat_->key_.receive())) {
+    NOTREACHED();
+    return false;
+  }
+
+  // Destroy the copy of the key.
+  SecureZeroMemory(key_blob->key_data, key_length);
+
+  return true;
+}
+
+HMAC::~HMAC() {
+}
+
+bool HMAC::Sign(const base::StringPiece& data,
+                unsigned char* digest,
+                size_t digest_length) const {
+  if (hash_alg_ == SHA256) {
+    if (plat_->raw_key_.empty())
+      return false;
+    ComputeHMACSHA256(&plat_->raw_key_[0], plat_->raw_key_.size(),
+                      reinterpret_cast<const unsigned char*>(data.data()),
+                      data.size(), digest, digest_length);
+    return true;
+  }
+
+  if (!plat_->provider_ || !plat_->key_)
+    return false;
+
+  if (hash_alg_ != SHA1) {
+    NOTREACHED();
+    return false;
+  }
+
+  ScopedHCRYPTHASH hash;
+  if (!CryptCreateHash(plat_->provider_, CALG_HMAC, plat_->key_, 0,
+                       hash.receive()))
+    return false;
+
+  HMAC_INFO hmac_info;
+  memset(&hmac_info, 0, sizeof(hmac_info));
+  hmac_info.HashAlgid = CALG_SHA1;
+  if (!CryptSetHashParam(hash, HP_HMAC_INFO,
+                         reinterpret_cast<BYTE*>(&hmac_info), 0))
+    return false;
+
+  if (!CryptHashData(hash, reinterpret_cast<const BYTE*>(data.data()),
+                     static_cast<DWORD>(data.size()), 0))
+    return false;
+
+  DWORD sha1_size = static_cast<DWORD>(digest_length);
+  return !!CryptGetHashParam(hash, HP_HASHVAL, digest, &sha1_size, 0);
+}
+
+}  // namespace crypto
diff --git a/crypto/mac_security_services_lock.cc b/crypto/mac_security_services_lock.cc
new file mode 100644
index 0000000..c0b8712
--- /dev/null
+++ b/crypto/mac_security_services_lock.cc
@@ -0,0 +1,42 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/mac_security_services_lock.h"
+
+#include "base/memory/singleton.h"
+#include "base/synchronization/lock.h"
+
+namespace {
+
+// This singleton pertains to Apple's wrappers over their own CSSM handles,
+// as opposed to our own CSSM_CSP_HANDLE in cssm_init.cc.
+class SecurityServicesSingleton {
+ public:
+  static SecurityServicesSingleton* GetInstance() {
+    return Singleton<SecurityServicesSingleton,
+                     LeakySingletonTraits<SecurityServicesSingleton> >::get();
+  }
+
+  base::Lock& lock() { return lock_; }
+
+ private:
+  friend struct DefaultSingletonTraits<SecurityServicesSingleton>;
+
+  SecurityServicesSingleton() {}
+  ~SecurityServicesSingleton() {}
+
+  base::Lock lock_;
+
+  DISALLOW_COPY_AND_ASSIGN(SecurityServicesSingleton);
+};
+
+}  // namespace
+
+namespace crypto {
+
+base::Lock& GetMacSecurityServicesLock() {
+  return SecurityServicesSingleton::GetInstance()->lock();
+}
+
+}  // namespace crypto
diff --git a/crypto/mac_security_services_lock.h b/crypto/mac_security_services_lock.h
new file mode 100644
index 0000000..fe56c6f
--- /dev/null
+++ b/crypto/mac_security_services_lock.h
@@ -0,0 +1,25 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
+#define CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
+
+#include "crypto/crypto_export.h"
+
+namespace base {
+class Lock;
+}
+
+namespace crypto {
+
+// The Mac OS X certificate and key management wrappers over CSSM are not
+// thread-safe. In particular, code that accesses the CSSM database is
+// problematic.
+//
+// http://developer.apple.com/mac/library/documentation/Security/Reference/certifkeytrustservices/Reference/reference.html
+CRYPTO_EXPORT base::Lock& GetMacSecurityServicesLock();
+
+}  // namespace crypto
+
+#endif  // CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
diff --git a/crypto/mock_apple_keychain.cc b/crypto/mock_apple_keychain.cc
new file mode 100644
index 0000000..1ddfc86
--- /dev/null
+++ b/crypto/mock_apple_keychain.cc
@@ -0,0 +1,61 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/logging.h"
+#include "base/time/time.h"
+#include "crypto/mock_apple_keychain.h"
+
+namespace crypto {
+
+OSStatus MockAppleKeychain::FindGenericPassword(
+    CFTypeRef keychainOrArray,
+    UInt32 serviceNameLength,
+    const char* serviceName,
+    UInt32 accountNameLength,
+    const char* accountName,
+    UInt32* passwordLength,
+    void** passwordData,
+    SecKeychainItemRef* itemRef) const {
+  // When simulating |noErr|, return canned |passwordData| and
+  // |passwordLength|.  Otherwise, just return given code.
+  if (find_generic_result_ == noErr) {
+    static const char kPassword[] = "my_password";
+    DCHECK(passwordData);
+    // The function to free this data is mocked so the cast is fine.
+    *passwordData = const_cast<char*>(kPassword);
+    DCHECK(passwordLength);
+    *passwordLength = arraysize(kPassword);
+    password_data_count_++;
+  }
+
+  return find_generic_result_;
+}
+
+OSStatus MockAppleKeychain::ItemFreeContent(SecKeychainAttributeList* attrList,
+                                            void* data) const {
+  // No-op.
+  password_data_count_--;
+  return noErr;
+}
+
+OSStatus MockAppleKeychain::AddGenericPassword(
+    SecKeychainRef keychain,
+    UInt32 serviceNameLength,
+    const char* serviceName,
+    UInt32 accountNameLength,
+    const char* accountName,
+    UInt32 passwordLength,
+    const void* passwordData,
+    SecKeychainItemRef* itemRef) const {
+  called_add_generic_ = true;
+
+  DCHECK_GT(passwordLength, 0U);
+  DCHECK(passwordData);
+  add_generic_password_ =
+      std::string(const_cast<char*>(static_cast<const char*>(passwordData)),
+                  passwordLength);
+  return noErr;
+}
+
+}  // namespace crypto
diff --git a/crypto/mock_apple_keychain.h b/crypto/mock_apple_keychain.h
new file mode 100644
index 0000000..73beb09
--- /dev/null
+++ b/crypto/mock_apple_keychain.h
@@ -0,0 +1,250 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_MOCK_KEYCHAIN_MAC_H_
+#define CRYPTO_MOCK_KEYCHAIN_MAC_H_
+
+#include <stdint.h>
+
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+
+#include "base/compiler_specific.h"
+#include "crypto/apple_keychain.h"
+
+namespace crypto {
+
+// Mock Keychain wrapper for testing code that interacts with the OS X
+// Keychain.  Implemented by storing SecKeychainAttributeList and
+// KeychainPasswordData values in separate mutable containers and
+// mapping them to integer keys.
+//
+// Note that "const" is pretty much meaningless for this class; the const-ness
+// of AppleKeychain doesn't apply to the actual keychain data, so all of the
+// Mock data is mutable; don't assume that it won't change over the life of
+// tests.
+class CRYPTO_EXPORT MockAppleKeychain : public AppleKeychain {
+ public:
+  MockAppleKeychain();
+  virtual ~MockAppleKeychain();
+
+  // AppleKeychain implementation.
+  virtual OSStatus FindGenericPassword(
+      CFTypeRef keychainOrArray,
+      UInt32 serviceNameLength,
+      const char* serviceName,
+      UInt32 accountNameLength,
+      const char* accountName,
+      UInt32* passwordLength,
+      void** passwordData,
+      SecKeychainItemRef* itemRef) const OVERRIDE;
+  virtual OSStatus ItemFreeContent(SecKeychainAttributeList* attrList,
+                                   void* data) const OVERRIDE;
+  virtual OSStatus AddGenericPassword(
+      SecKeychainRef keychain,
+      UInt32 serviceNameLength,
+      const char* serviceName,
+      UInt32 accountNameLength,
+      const char* accountName,
+      UInt32 passwordLength,
+      const void* passwordData,
+      SecKeychainItemRef* itemRef) const OVERRIDE;
+
+#if !defined(OS_IOS)
+  virtual OSStatus ItemCopyAttributesAndData(
+      SecKeychainItemRef itemRef,
+      SecKeychainAttributeInfo* info,
+      SecItemClass* itemClass,
+      SecKeychainAttributeList** attrList,
+      UInt32* length,
+      void** outData) const OVERRIDE;
+  // Pass "fail_me" as the data to get errSecAuthFailed.
+  virtual OSStatus ItemModifyAttributesAndData(
+      SecKeychainItemRef itemRef,
+      const SecKeychainAttributeList* attrList,
+      UInt32 length,
+      const void* data) const OVERRIDE;
+  virtual OSStatus ItemFreeAttributesAndData(SecKeychainAttributeList* attrList,
+                                             void* data) const OVERRIDE;
+  virtual OSStatus ItemDelete(SecKeychainItemRef itemRef) const OVERRIDE;
+  virtual OSStatus SearchCreateFromAttributes(
+      CFTypeRef keychainOrArray,
+      SecItemClass itemClass,
+      const SecKeychainAttributeList* attrList,
+      SecKeychainSearchRef* searchRef) const OVERRIDE;
+  virtual OSStatus SearchCopyNext(SecKeychainSearchRef searchRef,
+                                  SecKeychainItemRef* itemRef) const OVERRIDE;
+  // Pass "some.domain.com" as the serverName to get errSecDuplicateItem.
+  virtual OSStatus AddInternetPassword(
+      SecKeychainRef keychain,
+      UInt32 serverNameLength,
+      const char* serverName,
+      UInt32 securityDomainLength,
+      const char* securityDomain,
+      UInt32 accountNameLength,
+      const char* accountName,
+      UInt32 pathLength, const char* path,
+      UInt16 port, SecProtocolType protocol,
+      SecAuthenticationType authenticationType,
+      UInt32 passwordLength,
+      const void* passwordData,
+      SecKeychainItemRef* itemRef) const OVERRIDE;
+  virtual void Free(CFTypeRef ref) const OVERRIDE;
+
+  // Return the counts of objects returned by Create/Copy functions but never
+  // Free'd as they should have been.
+  int UnfreedSearchCount() const;
+  int UnfreedKeychainItemCount() const;
+  int UnfreedAttributeDataCount() const;
+
+  // Returns true if all items added with AddInternetPassword have a creator
+  // code set.
+  bool CreatorCodesSetForAddedItems() const;
+
+  struct KeychainTestData {
+    const SecAuthenticationType auth_type;
+    const char* server;
+    const SecProtocolType protocol;
+    const char* path;
+    const UInt32 port;
+    const char* security_domain;
+    const char* creation_date;
+    const char* username;
+    const char* password;
+    const bool negative_item;
+  };
+  // Adds a keychain item with the given info to the test set.
+  void AddTestItem(const KeychainTestData& item_data);
+#endif  // !defined(OS_IOS)
+
+  // |FindGenericPassword()| can return different results depending on user
+  // interaction with the system Keychain.  For mocking purposes we allow the
+  // user of this class to specify the result code of the
+  // |FindGenericPassword()| call so we can simulate the result of different
+  // user interactions.
+  void set_find_generic_result(OSStatus result) {
+    find_generic_result_ = result;
+  }
+
+  // Returns the true if |AddGenericPassword()| was called.
+  bool called_add_generic() const { return called_add_generic_; }
+
+  // Returns the value of the password set when |AddGenericPassword()| was
+  // called.
+  std::string add_generic_password() const { return add_generic_password_; }
+
+  // Returns the number of allocations - deallocations for password data.
+  int password_data_count() const { return password_data_count_; }
+
+ private:
+  // Type used for the keys in the std::map(s) and MockAppleKeychain items.
+  typedef uintptr_t MockKeychainItemType;
+
+  // Type of the map holding the mock keychain attributes.
+  typedef std::map<MockKeychainItemType, SecKeychainAttributeList>
+      MockKeychainAttributesMap;
+
+#if !defined(OS_IOS)
+  // Returns true if the keychain already contains a password that matches the
+  // attributes provided.
+  bool AlreadyContainsInternetPassword(
+      UInt32 serverNameLength,
+      const char* serverName,
+      UInt32 securityDomainLength,
+      const char* securityDomain,
+      UInt32 accountNameLength,
+      const char* accountName,
+      UInt32 pathLength,
+      const char* path,
+      UInt16 port,
+      SecProtocolType protocol,
+      SecAuthenticationType authenticationType) const;
+  // Initializes storage for keychain data at |key|.
+  void InitializeKeychainData(MockKeychainItemType key) const;
+  // Sets the data and length of |tag| in the item-th test item.
+  void SetTestDataBytes(
+      MockKeychainItemType item,
+      UInt32 tag,
+      const void* data,
+      size_t length);
+  // Sets the data and length of |tag| in the item-th test item based on
+  // |value|. The null-terminator will not be included; the Keychain Services
+  // docs don't indicate whether it is or not, so clients should not assume
+  // that it will be.
+  void SetTestDataString(MockKeychainItemType item,
+                         UInt32 tag,
+                         const char* value);
+  // Sets the data of the corresponding attribute of the item-th test item to
+  // |value|. Assumes that the space has alread been allocated, and the length
+  // set.
+  void SetTestDataPort(MockKeychainItemType item, UInt32 value);
+  void SetTestDataProtocol(MockKeychainItemType item, SecProtocolType value);
+  void SetTestDataAuthType(MockKeychainItemType item,
+                           SecAuthenticationType value);
+  void SetTestDataNegativeItem(MockKeychainItemType item, Boolean value);
+  void SetTestDataCreator(MockKeychainItemType item, OSType value);
+  // Sets the password data and length for the item-th test item.
+  void SetTestDataPasswordBytes(MockKeychainItemType item,
+                                const void* data,
+                                size_t length);
+  // Sets the password for the item-th test item. As with SetTestDataString,
+  // the data will not be null-terminated.
+  void SetTestDataPasswordString(MockKeychainItemType item, const char* value);
+
+  // Returns the address of the attribute in attribute_list with tag |tag|.
+  static SecKeychainAttribute* AttributeWithTag(
+      const SecKeychainAttributeList& attribute_list,
+      UInt32 tag);
+
+  static const SecKeychainSearchRef kDummySearchRef;
+
+  typedef struct KeychainPasswordData {
+    KeychainPasswordData() : data(NULL), length(0) {}
+    void* data;
+    UInt32 length;
+  } KeychainPasswordData;
+
+  // Mutable because the MockAppleKeychain API requires its internal keychain
+  // storage to be modifiable by users of this class.
+  mutable MockKeychainAttributesMap keychain_attr_list_;
+  mutable std::map<MockKeychainItemType,
+                   KeychainPasswordData> keychain_data_;
+  mutable MockKeychainItemType next_item_key_;
+
+  // Tracks the items that should be returned in subsequent calls to
+  // SearchCopyNext, based on the last call to SearchCreateFromAttributes.
+  // We can't handle multiple active searches, since we don't track the search
+  // ref we return, but we don't need to for our mocking.
+  mutable std::vector<MockKeychainItemType> remaining_search_results_;
+
+  // Track copies and releases to make sure they balance. Really these should
+  // be maps to track per item, but this should be good enough to catch
+  // real mistakes.
+  mutable int search_copy_count_;
+  mutable int keychain_item_copy_count_;
+  mutable int attribute_data_copy_count_;
+
+  // Tracks which items (by key) were added with AddInternetPassword.
+  mutable std::set<MockKeychainItemType> added_via_api_;
+#endif  // !defined(OS_IOS)
+
+  // Result code for the |FindGenericPassword()| method.
+  OSStatus find_generic_result_;
+
+  // Records whether |AddGenericPassword()| gets called.
+  mutable bool called_add_generic_;
+
+  // Tracks the allocations and frees of password data in |FindGenericPassword|
+  // and |ItemFreeContent|.
+  mutable int password_data_count_;
+
+  // Records the password being set when |AddGenericPassword()| gets called.
+  mutable std::string add_generic_password_;
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_MOCK_KEYCHAIN_MAC_H_
diff --git a/crypto/mock_apple_keychain_ios.cc b/crypto/mock_apple_keychain_ios.cc
new file mode 100644
index 0000000..9e8a164
--- /dev/null
+++ b/crypto/mock_apple_keychain_ios.cc
@@ -0,0 +1,20 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/logging.h"
+#include "base/time/time.h"
+#include "crypto/mock_apple_keychain.h"
+
+namespace crypto {
+
+MockAppleKeychain::MockAppleKeychain()
+    : find_generic_result_(noErr),
+      called_add_generic_(false),
+      password_data_count_(0) {
+}
+
+MockAppleKeychain::~MockAppleKeychain() {
+}
+
+}  // namespace crypto
diff --git a/crypto/mock_apple_keychain_mac.cc b/crypto/mock_apple_keychain_mac.cc
new file mode 100644
index 0000000..d586f70
--- /dev/null
+++ b/crypto/mock_apple_keychain_mac.cc
@@ -0,0 +1,509 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/logging.h"
+#include "base/time/time.h"
+#include "crypto/mock_apple_keychain.h"
+
+namespace crypto {
+
+// static
+const SecKeychainSearchRef MockAppleKeychain::kDummySearchRef =
+    reinterpret_cast<SecKeychainSearchRef>(1000);
+
+MockAppleKeychain::MockAppleKeychain()
+    : next_item_key_(0),
+      search_copy_count_(0),
+      keychain_item_copy_count_(0),
+      attribute_data_copy_count_(0),
+      find_generic_result_(noErr),
+      called_add_generic_(false),
+      password_data_count_(0) {}
+
+void MockAppleKeychain::InitializeKeychainData(MockKeychainItemType key) const {
+  UInt32 tags[] = { kSecAccountItemAttr,
+                    kSecServerItemAttr,
+                    kSecPortItemAttr,
+                    kSecPathItemAttr,
+                    kSecProtocolItemAttr,
+                    kSecAuthenticationTypeItemAttr,
+                    kSecSecurityDomainItemAttr,
+                    kSecCreationDateItemAttr,
+                    kSecNegativeItemAttr,
+                    kSecCreatorItemAttr };
+  keychain_attr_list_[key] = SecKeychainAttributeList();
+  keychain_data_[key] = KeychainPasswordData();
+  keychain_attr_list_[key].count = arraysize(tags);
+  keychain_attr_list_[key].attr = static_cast<SecKeychainAttribute*>(
+      calloc(keychain_attr_list_[key].count, sizeof(SecKeychainAttribute)));
+  for (unsigned int i = 0; i < keychain_attr_list_[key].count; ++i) {
+    keychain_attr_list_[key].attr[i].tag = tags[i];
+    size_t data_size = 0;
+    switch (tags[i]) {
+      case kSecPortItemAttr:
+        data_size = sizeof(UInt32);
+        break;
+      case kSecProtocolItemAttr:
+        data_size = sizeof(SecProtocolType);
+        break;
+      case kSecAuthenticationTypeItemAttr:
+        data_size = sizeof(SecAuthenticationType);
+        break;
+      case kSecNegativeItemAttr:
+        data_size = sizeof(Boolean);
+        break;
+      case kSecCreatorItemAttr:
+        data_size = sizeof(OSType);
+        break;
+    }
+    if (data_size > 0) {
+      keychain_attr_list_[key].attr[i].length = data_size;
+      keychain_attr_list_[key].attr[i].data = calloc(1, data_size);
+    }
+  }
+}
+
+MockAppleKeychain::~MockAppleKeychain() {
+  for (MockKeychainAttributesMap::iterator it = keychain_attr_list_.begin();
+       it != keychain_attr_list_.end();
+       ++it) {
+    for (unsigned int i = 0; i < it->second.count; ++i) {
+      if (it->second.attr[i].data)
+        free(it->second.attr[i].data);
+    }
+    free(it->second.attr);
+    if (keychain_data_[it->first].data)
+      free(keychain_data_[it->first].data);
+  }
+  keychain_attr_list_.clear();
+  keychain_data_.clear();
+}
+
+SecKeychainAttribute* MockAppleKeychain::AttributeWithTag(
+    const SecKeychainAttributeList& attribute_list,
+    UInt32 tag) {
+  int attribute_index = -1;
+  for (unsigned int i = 0; i < attribute_list.count; ++i) {
+    if (attribute_list.attr[i].tag == tag) {
+      attribute_index = i;
+      break;
+    }
+  }
+  if (attribute_index == -1) {
+    NOTREACHED() << "Unsupported attribute: " << tag;
+    return NULL;
+  }
+  return &(attribute_list.attr[attribute_index]);
+}
+
+void MockAppleKeychain::SetTestDataBytes(MockKeychainItemType item,
+                                         UInt32 tag,
+                                         const void* data,
+                                         size_t length) {
+  SecKeychainAttribute* attribute = AttributeWithTag(keychain_attr_list_[item],
+                                                     tag);
+  attribute->length = length;
+  if (length > 0) {
+    if (attribute->data)
+      free(attribute->data);
+    attribute->data = malloc(length);
+    CHECK(attribute->data);
+    memcpy(attribute->data, data, length);
+  } else {
+    attribute->data = NULL;
+  }
+}
+
+void MockAppleKeychain::SetTestDataString(MockKeychainItemType item,
+                                          UInt32 tag,
+                                          const char* value) {
+  SetTestDataBytes(item, tag, value, value ? strlen(value) : 0);
+}
+
+void MockAppleKeychain::SetTestDataPort(MockKeychainItemType item,
+                                        UInt32 value) {
+  SecKeychainAttribute* attribute = AttributeWithTag(keychain_attr_list_[item],
+                                                     kSecPortItemAttr);
+  UInt32* data = static_cast<UInt32*>(attribute->data);
+  *data = value;
+}
+
+void MockAppleKeychain::SetTestDataProtocol(MockKeychainItemType item,
+                                            SecProtocolType value) {
+  SecKeychainAttribute* attribute = AttributeWithTag(keychain_attr_list_[item],
+                                                     kSecProtocolItemAttr);
+  SecProtocolType* data = static_cast<SecProtocolType*>(attribute->data);
+  *data = value;
+}
+
+void MockAppleKeychain::SetTestDataAuthType(MockKeychainItemType item,
+                                            SecAuthenticationType value) {
+  SecKeychainAttribute* attribute = AttributeWithTag(
+      keychain_attr_list_[item], kSecAuthenticationTypeItemAttr);
+  SecAuthenticationType* data = static_cast<SecAuthenticationType*>(
+      attribute->data);
+  *data = value;
+}
+
+void MockAppleKeychain::SetTestDataNegativeItem(MockKeychainItemType item,
+                                                Boolean value) {
+  SecKeychainAttribute* attribute = AttributeWithTag(keychain_attr_list_[item],
+                                                     kSecNegativeItemAttr);
+  Boolean* data = static_cast<Boolean*>(attribute->data);
+  *data = value;
+}
+
+void MockAppleKeychain::SetTestDataCreator(MockKeychainItemType item,
+                                           OSType value) {
+  SecKeychainAttribute* attribute = AttributeWithTag(keychain_attr_list_[item],
+                                                     kSecCreatorItemAttr);
+  OSType* data = static_cast<OSType*>(attribute->data);
+  *data = value;
+}
+
+void MockAppleKeychain::SetTestDataPasswordBytes(MockKeychainItemType item,
+                                                 const void* data,
+                                                 size_t length) {
+  keychain_data_[item].length = length;
+  if (length > 0) {
+    if (keychain_data_[item].data)
+      free(keychain_data_[item].data);
+    keychain_data_[item].data = malloc(length);
+    memcpy(keychain_data_[item].data, data, length);
+  } else {
+    keychain_data_[item].data = NULL;
+  }
+}
+
+void MockAppleKeychain::SetTestDataPasswordString(MockKeychainItemType item,
+                                                  const char* value) {
+  SetTestDataPasswordBytes(item, value, value ? strlen(value) : 0);
+}
+
+OSStatus MockAppleKeychain::ItemCopyAttributesAndData(
+    SecKeychainItemRef itemRef,
+    SecKeychainAttributeInfo* info,
+    SecItemClass* itemClass,
+    SecKeychainAttributeList** attrList,
+    UInt32* length,
+    void** outData) const {
+  DCHECK(itemRef);
+  MockKeychainItemType key =
+      reinterpret_cast<MockKeychainItemType>(itemRef) - 1;
+  if (keychain_attr_list_.find(key) == keychain_attr_list_.end())
+    return errSecInvalidItemRef;
+
+  DCHECK(!itemClass);  // itemClass not implemented in the Mock.
+  if (attrList)
+    *attrList  = &(keychain_attr_list_[key]);
+  if (outData) {
+    *outData = keychain_data_[key].data;
+    DCHECK(length);
+    *length = keychain_data_[key].length;
+  }
+
+  ++attribute_data_copy_count_;
+  return noErr;
+}
+
+OSStatus MockAppleKeychain::ItemModifyAttributesAndData(
+    SecKeychainItemRef itemRef,
+    const SecKeychainAttributeList* attrList,
+    UInt32 length,
+    const void* data) const {
+  DCHECK(itemRef);
+  const char* fail_trigger = "fail_me";
+  if (length == strlen(fail_trigger) &&
+      memcmp(data, fail_trigger, length) == 0) {
+    return errSecAuthFailed;
+  }
+
+  MockKeychainItemType key =
+      reinterpret_cast<MockKeychainItemType>(itemRef) - 1;
+  if (keychain_attr_list_.find(key) == keychain_attr_list_.end())
+    return errSecInvalidItemRef;
+
+  MockAppleKeychain* mutable_this = const_cast<MockAppleKeychain*>(this);
+  if (attrList) {
+    for (UInt32 change_attr = 0; change_attr < attrList->count; ++change_attr) {
+      if (attrList->attr[change_attr].tag == kSecCreatorItemAttr) {
+        void* data = attrList->attr[change_attr].data;
+        mutable_this->SetTestDataCreator(key, *(static_cast<OSType*>(data)));
+      } else {
+        NOTIMPLEMENTED();
+      }
+    }
+  }
+  if (data)
+    mutable_this->SetTestDataPasswordBytes(key, data, length);
+  return noErr;
+}
+
+OSStatus MockAppleKeychain::ItemFreeAttributesAndData(
+    SecKeychainAttributeList* attrList,
+    void* data) const {
+  --attribute_data_copy_count_;
+  return noErr;
+}
+
+OSStatus MockAppleKeychain::ItemDelete(SecKeychainItemRef itemRef) const {
+  MockKeychainItemType key =
+      reinterpret_cast<MockKeychainItemType>(itemRef) - 1;
+
+  for (unsigned int i = 0; i < keychain_attr_list_[key].count; ++i) {
+    if (keychain_attr_list_[key].attr[i].data)
+      free(keychain_attr_list_[key].attr[i].data);
+  }
+  free(keychain_attr_list_[key].attr);
+  if (keychain_data_[key].data)
+    free(keychain_data_[key].data);
+
+  keychain_attr_list_.erase(key);
+  keychain_data_.erase(key);
+  added_via_api_.erase(key);
+  return noErr;
+}
+
+OSStatus MockAppleKeychain::SearchCreateFromAttributes(
+    CFTypeRef keychainOrArray,
+    SecItemClass itemClass,
+    const SecKeychainAttributeList* attrList,
+    SecKeychainSearchRef* searchRef) const {
+  // Figure out which of our mock items matches, and set up the array we'll use
+  // to generate results out of SearchCopyNext.
+  remaining_search_results_.clear();
+  for (MockKeychainAttributesMap::const_iterator it =
+           keychain_attr_list_.begin();
+       it != keychain_attr_list_.end();
+       ++it) {
+    bool mock_item_matches = true;
+    for (UInt32 search_attr = 0; search_attr < attrList->count; ++search_attr) {
+      SecKeychainAttribute* mock_attribute =
+          AttributeWithTag(it->second, attrList->attr[search_attr].tag);
+      if (mock_attribute->length != attrList->attr[search_attr].length ||
+          memcmp(mock_attribute->data, attrList->attr[search_attr].data,
+                 attrList->attr[search_attr].length) != 0) {
+        mock_item_matches = false;
+        break;
+      }
+    }
+    if (mock_item_matches)
+      remaining_search_results_.push_back(it->first);
+  }
+
+  DCHECK(searchRef);
+  *searchRef = kDummySearchRef;
+  ++search_copy_count_;
+  return noErr;
+}
+
+bool MockAppleKeychain::AlreadyContainsInternetPassword(
+    UInt32 serverNameLength,
+    const char* serverName,
+    UInt32 securityDomainLength,
+    const char* securityDomain,
+    UInt32 accountNameLength,
+    const char* accountName,
+    UInt32 pathLength,
+    const char* path,
+    UInt16 port,
+    SecProtocolType protocol,
+    SecAuthenticationType authenticationType) const {
+  for (MockKeychainAttributesMap::const_iterator it =
+           keychain_attr_list_.begin();
+       it != keychain_attr_list_.end();
+       ++it) {
+    SecKeychainAttribute* attribute;
+    attribute = AttributeWithTag(it->second, kSecServerItemAttr);
+    if ((attribute->length != serverNameLength) ||
+        (attribute->data == NULL && *serverName != '\0') ||
+        (attribute->data != NULL && *serverName == '\0') ||
+        strncmp(serverName,
+                (const char*) attribute->data,
+                serverNameLength) != 0) {
+      continue;
+    }
+    attribute = AttributeWithTag(it->second, kSecSecurityDomainItemAttr);
+    if ((attribute->length != securityDomainLength) ||
+        (attribute->data == NULL && *securityDomain != '\0') ||
+        (attribute->data != NULL && *securityDomain == '\0') ||
+        strncmp(securityDomain,
+                (const char*) attribute->data,
+                securityDomainLength) != 0) {
+      continue;
+    }
+    attribute = AttributeWithTag(it->second, kSecAccountItemAttr);
+    if ((attribute->length != accountNameLength) ||
+        (attribute->data == NULL && *accountName != '\0') ||
+        (attribute->data != NULL && *accountName == '\0') ||
+        strncmp(accountName,
+                (const char*) attribute->data,
+                accountNameLength) != 0) {
+      continue;
+    }
+    attribute = AttributeWithTag(it->second, kSecPathItemAttr);
+    if ((attribute->length != pathLength) ||
+        (attribute->data == NULL && *path != '\0') ||
+        (attribute->data != NULL && *path == '\0') ||
+        strncmp(path,
+                (const char*) attribute->data,
+                pathLength) != 0) {
+      continue;
+    }
+    attribute = AttributeWithTag(it->second, kSecPortItemAttr);
+    if ((attribute->data == NULL) ||
+        (port != *(static_cast<UInt32*>(attribute->data)))) {
+      continue;
+    }
+    attribute = AttributeWithTag(it->second, kSecProtocolItemAttr);
+    if ((attribute->data == NULL) ||
+        (protocol != *(static_cast<SecProtocolType*>(attribute->data)))) {
+      continue;
+    }
+    attribute = AttributeWithTag(it->second, kSecAuthenticationTypeItemAttr);
+    if ((attribute->data == NULL) ||
+        (authenticationType !=
+            *(static_cast<SecAuthenticationType*>(attribute->data)))) {
+      continue;
+    }
+    // The keychain already has this item, since all fields other than the
+    // password match.
+    return true;
+  }
+  return false;
+}
+
+OSStatus MockAppleKeychain::AddInternetPassword(
+    SecKeychainRef keychain,
+    UInt32 serverNameLength,
+    const char* serverName,
+    UInt32 securityDomainLength,
+    const char* securityDomain,
+    UInt32 accountNameLength,
+    const char* accountName,
+    UInt32 pathLength,
+    const char* path,
+    UInt16 port,
+    SecProtocolType protocol,
+    SecAuthenticationType authenticationType,
+    UInt32 passwordLength,
+    const void* passwordData,
+    SecKeychainItemRef* itemRef) const {
+
+  // Check for the magic duplicate item trigger.
+  if (strcmp(serverName, "some.domain.com") == 0)
+    return errSecDuplicateItem;
+
+  // If the account already exists in the keychain, we don't add it.
+  if (AlreadyContainsInternetPassword(serverNameLength, serverName,
+                                      securityDomainLength, securityDomain,
+                                      accountNameLength, accountName,
+                                      pathLength, path,
+                                      port, protocol,
+                                      authenticationType)) {
+    return errSecDuplicateItem;
+  }
+
+  // Pick the next unused slot.
+  MockKeychainItemType key = next_item_key_++;
+
+  // Initialize keychain data storage at the target location.
+  InitializeKeychainData(key);
+
+  MockAppleKeychain* mutable_this = const_cast<MockAppleKeychain*>(this);
+  mutable_this->SetTestDataBytes(key, kSecServerItemAttr, serverName,
+                                 serverNameLength);
+  mutable_this->SetTestDataBytes(key, kSecSecurityDomainItemAttr,
+                                 securityDomain, securityDomainLength);
+  mutable_this->SetTestDataBytes(key, kSecAccountItemAttr, accountName,
+                                 accountNameLength);
+  mutable_this->SetTestDataBytes(key, kSecPathItemAttr, path, pathLength);
+  mutable_this->SetTestDataPort(key, port);
+  mutable_this->SetTestDataProtocol(key, protocol);
+  mutable_this->SetTestDataAuthType(key, authenticationType);
+  mutable_this->SetTestDataPasswordBytes(key, passwordData,
+                                         passwordLength);
+  base::Time::Exploded exploded_time;
+  base::Time::Now().UTCExplode(&exploded_time);
+  char time_string[128];
+  snprintf(time_string, sizeof(time_string), "%04d%02d%02d%02d%02d%02dZ",
+           exploded_time.year, exploded_time.month, exploded_time.day_of_month,
+           exploded_time.hour, exploded_time.minute, exploded_time.second);
+  mutable_this->SetTestDataString(key, kSecCreationDateItemAttr, time_string);
+
+  added_via_api_.insert(key);
+
+  if (itemRef) {
+    *itemRef = reinterpret_cast<SecKeychainItemRef>(key + 1);
+    ++keychain_item_copy_count_;
+  }
+  return noErr;
+}
+
+OSStatus MockAppleKeychain::SearchCopyNext(SecKeychainSearchRef searchRef,
+                                           SecKeychainItemRef* itemRef) const {
+  if (remaining_search_results_.empty())
+    return errSecItemNotFound;
+  MockKeychainItemType key = remaining_search_results_.front();
+  remaining_search_results_.erase(remaining_search_results_.begin());
+  *itemRef = reinterpret_cast<SecKeychainItemRef>(key + 1);
+  ++keychain_item_copy_count_;
+  return noErr;
+}
+
+void MockAppleKeychain::Free(CFTypeRef ref) const {
+  if (!ref)
+    return;
+
+  if (ref == kDummySearchRef) {
+    --search_copy_count_;
+  } else {
+    --keychain_item_copy_count_;
+  }
+}
+
+int MockAppleKeychain::UnfreedSearchCount() const {
+  return search_copy_count_;
+}
+
+int MockAppleKeychain::UnfreedKeychainItemCount() const {
+  return keychain_item_copy_count_;
+}
+
+int MockAppleKeychain::UnfreedAttributeDataCount() const {
+  return attribute_data_copy_count_;
+}
+
+bool MockAppleKeychain::CreatorCodesSetForAddedItems() const {
+  for (std::set<MockKeychainItemType>::const_iterator
+           i = added_via_api_.begin();
+       i != added_via_api_.end();
+       ++i) {
+    SecKeychainAttribute* attribute = AttributeWithTag(keychain_attr_list_[*i],
+                                                       kSecCreatorItemAttr);
+    OSType* data = static_cast<OSType*>(attribute->data);
+    if (*data == 0)
+      return false;
+  }
+  return true;
+}
+
+void MockAppleKeychain::AddTestItem(const KeychainTestData& item_data) {
+  MockKeychainItemType key = next_item_key_++;
+
+  InitializeKeychainData(key);
+  SetTestDataAuthType(key, item_data.auth_type);
+  SetTestDataString(key, kSecServerItemAttr, item_data.server);
+  SetTestDataProtocol(key, item_data.protocol);
+  SetTestDataString(key, kSecPathItemAttr, item_data.path);
+  SetTestDataPort(key, item_data.port);
+  SetTestDataString(key, kSecSecurityDomainItemAttr,
+                    item_data.security_domain);
+  SetTestDataString(key, kSecCreationDateItemAttr, item_data.creation_date);
+  SetTestDataString(key, kSecAccountItemAttr, item_data.username);
+  SetTestDataPasswordString(key, item_data.password);
+  SetTestDataNegativeItem(key, item_data.negative_item);
+}
+
+}  // namespace crypto
diff --git a/crypto/nss_crypto_module_delegate.h b/crypto/nss_crypto_module_delegate.h
new file mode 100644
index 0000000..00b2b75
--- /dev/null
+++ b/crypto/nss_crypto_module_delegate.h
@@ -0,0 +1,53 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_NSS_CRYPTO_MODULE_DELEGATE_H_
+#define CRYPTO_NSS_CRYPTO_MODULE_DELEGATE_H_
+
+#include <string>
+
+#include "base/callback_forward.h"
+#include "crypto/scoped_nss_types.h"
+
+namespace crypto {
+
+// PK11_SetPasswordFunc is a global setting.  An implementation of
+// CryptoModuleBlockingPasswordDelegate should be passed using wincx() as the
+// user data argument (|wincx|) to relevant NSS functions, which the global
+// password handler will call to do the actual work. This delegate should only
+// be used in NSS calls on worker threads due to the blocking nature.
+class CryptoModuleBlockingPasswordDelegate {
+ public:
+  virtual ~CryptoModuleBlockingPasswordDelegate() {}
+
+  // Return a value suitable for passing to the |wincx| argument of relevant NSS
+  // functions. This should be used instead of passing the object pointer
+  // directly to avoid accidentally casting a pointer to a subclass to void* and
+  // then casting back to a pointer of the base class
+  void* wincx() { return this; }
+
+  // Requests a password to unlock |slot_name|. The interface is synchronous
+  // because NSS cannot issue an asynchronous request. |retry| is true if this
+  // is a request for the retry and we previously returned the wrong password.
+  // The implementation should set |*cancelled| to true if the user cancelled
+  // instead of entering a password, otherwise it should return the password the
+  // user entered.
+  virtual std::string RequestPassword(const std::string& slot_name, bool retry,
+                                      bool* cancelled) = 0;
+
+};
+
+// Extends CryptoModuleBlockingPasswordDelegate with the ability to return a
+// slot in which to act. (Eg, which slot to store a generated key in.)
+class NSSCryptoModuleDelegate : public CryptoModuleBlockingPasswordDelegate {
+ public:
+  virtual ~NSSCryptoModuleDelegate() {}
+
+  // Get the slot to store the generated key.
+  virtual ScopedPK11Slot RequestSlot() = 0;
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_NSS_CRYPTO_MODULE_DELEGATE_H_
diff --git a/crypto/nss_util.cc b/crypto/nss_util.cc
new file mode 100644
index 0000000..8f9865a
--- /dev/null
+++ b/crypto/nss_util.cc
@@ -0,0 +1,1104 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/nss_util.h"
+#include "crypto/nss_util_internal.h"
+
+#include <nss.h>
+#include <pk11pub.h>
+#include <plarena.h>
+#include <prerror.h>
+#include <prinit.h>
+#include <prtime.h>
+#include <secmod.h>
+
+#if defined(OS_OPENBSD)
+#include <sys/mount.h>
+#include <sys/param.h>
+#endif
+
+#include <map>
+#include <vector>
+
+#include "base/base_paths.h"
+#include "base/bind.h"
+#include "base/cpu.h"
+#include "base/debug/alias.h"
+#include "base/debug/stack_trace.h"
+#include "base/environment.h"
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/lazy_instance.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/metrics/histogram.h"
+#include "base/native_library.h"
+#include "base/path_service.h"
+#include "base/stl_util.h"
+#include "base/strings/stringprintf.h"
+#include "base/threading/thread_checker.h"
+#include "base/threading/thread_restrictions.h"
+#include "base/threading/worker_pool.h"
+#include "build/build_config.h"
+
+// USE_NSS means we use NSS for everything crypto-related.  If USE_NSS is not
+// defined, such as on Mac and Windows, we use NSS for SSL only -- we don't
+// use NSS for crypto or certificate verification, and we don't use the NSS
+// certificate and key databases.
+#if defined(USE_NSS)
+#include "base/synchronization/lock.h"
+#include "crypto/nss_crypto_module_delegate.h"
+#endif  // defined(USE_NSS)
+
+namespace crypto {
+
+namespace {
+
+#if defined(OS_CHROMEOS)
+const char kUserNSSDatabaseName[] = "UserNSSDB";
+
+// Constants for loading the Chrome OS TPM-backed PKCS #11 library.
+const char kChapsModuleName[] = "Chaps";
+const char kChapsPath[] = "libchaps.so";
+
+// Fake certificate authority database used for testing.
+static const base::FilePath::CharType kReadOnlyCertDB[] =
+    FILE_PATH_LITERAL("/etc/fake_root_ca/nssdb");
+#endif  // defined(OS_CHROMEOS)
+
+std::string GetNSSErrorMessage() {
+  std::string result;
+  if (PR_GetErrorTextLength()) {
+    scoped_ptr<char[]> error_text(new char[PR_GetErrorTextLength() + 1]);
+    PRInt32 copied = PR_GetErrorText(error_text.get());
+    result = std::string(error_text.get(), copied);
+  } else {
+    result = base::StringPrintf("NSS error code: %d", PR_GetError());
+  }
+  return result;
+}
+
+#if defined(USE_NSS)
+#if !defined(OS_CHROMEOS)
+base::FilePath GetDefaultConfigDirectory() {
+  base::FilePath dir;
+  PathService::Get(base::DIR_HOME, &dir);
+  if (dir.empty()) {
+    LOG(ERROR) << "Failed to get home directory.";
+    return dir;
+  }
+  dir = dir.AppendASCII(".pki").AppendASCII("nssdb");
+  if (!base::CreateDirectory(dir)) {
+    LOG(ERROR) << "Failed to create " << dir.value() << " directory.";
+    dir.clear();
+  }
+  DVLOG(2) << "DefaultConfigDirectory: " << dir.value();
+  return dir;
+}
+#endif  // !defined(IS_CHROMEOS)
+
+// On non-Chrome OS platforms, return the default config directory. On Chrome OS
+// test images, return a read-only directory with fake root CA certs (which are
+// used by the local Google Accounts server mock we use when testing our login
+// code). On Chrome OS non-test images (where the read-only directory doesn't
+// exist), return an empty path.
+base::FilePath GetInitialConfigDirectory() {
+#if defined(OS_CHROMEOS)
+  base::FilePath database_dir = base::FilePath(kReadOnlyCertDB);
+  if (!base::PathExists(database_dir))
+    database_dir.clear();
+  return database_dir;
+#else
+  return GetDefaultConfigDirectory();
+#endif  // defined(OS_CHROMEOS)
+}
+
+// This callback for NSS forwards all requests to a caller-specified
+// CryptoModuleBlockingPasswordDelegate object.
+char* PKCS11PasswordFunc(PK11SlotInfo* slot, PRBool retry, void* arg) {
+  crypto::CryptoModuleBlockingPasswordDelegate* delegate =
+      reinterpret_cast<crypto::CryptoModuleBlockingPasswordDelegate*>(arg);
+  if (delegate) {
+    bool cancelled = false;
+    std::string password = delegate->RequestPassword(PK11_GetTokenName(slot),
+                                                     retry != PR_FALSE,
+                                                     &cancelled);
+    if (cancelled)
+      return NULL;
+    char* result = PORT_Strdup(password.c_str());
+    password.replace(0, password.size(), password.size(), 0);
+    return result;
+  }
+  DLOG(ERROR) << "PK11 password requested with NULL arg";
+  return NULL;
+}
+
+// NSS creates a local cache of the sqlite database if it detects that the
+// filesystem the database is on is much slower than the local disk.  The
+// detection doesn't work with the latest versions of sqlite, such as 3.6.22
+// (NSS bug https://bugzilla.mozilla.org/show_bug.cgi?id=578561).  So we set
+// the NSS environment variable NSS_SDB_USE_CACHE to "yes" to override NSS's
+// detection when database_dir is on NFS.  See http://crbug.com/48585.
+//
+// TODO(wtc): port this function to other USE_NSS platforms.  It is defined
+// only for OS_LINUX and OS_OPENBSD simply because the statfs structure
+// is OS-specific.
+//
+// Because this function sets an environment variable it must be run before we
+// go multi-threaded.
+void UseLocalCacheOfNSSDatabaseIfNFS(const base::FilePath& database_dir) {
+  bool db_on_nfs = false;
+#if defined(OS_LINUX)
+  base::FileSystemType fs_type = base::FILE_SYSTEM_UNKNOWN;
+  if (base::GetFileSystemType(database_dir, &fs_type))
+    db_on_nfs = (fs_type == base::FILE_SYSTEM_NFS);
+#elif defined(OS_OPENBSD)
+  struct statfs buf;
+  if (statfs(database_dir.value().c_str(), &buf) == 0)
+    db_on_nfs = (strcmp(buf.f_fstypename, MOUNT_NFS) == 0);
+#else
+  NOTIMPLEMENTED();
+#endif
+
+  if (db_on_nfs) {
+    scoped_ptr<base::Environment> env(base::Environment::Create());
+    static const char kUseCacheEnvVar[] = "NSS_SDB_USE_CACHE";
+    if (!env->HasVar(kUseCacheEnvVar))
+      env->SetVar(kUseCacheEnvVar, "yes");
+  }
+}
+
+#endif  // defined(USE_NSS)
+
+// A singleton to initialize/deinitialize NSPR.
+// Separate from the NSS singleton because we initialize NSPR on the UI thread.
+// Now that we're leaking the singleton, we could merge back with the NSS
+// singleton.
+class NSPRInitSingleton {
+ private:
+  friend struct base::DefaultLazyInstanceTraits<NSPRInitSingleton>;
+
+  NSPRInitSingleton() {
+    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+  }
+
+  // NOTE(willchan): We don't actually execute this code since we leak NSS to
+  // prevent non-joinable threads from using NSS after it's already been shut
+  // down.
+  ~NSPRInitSingleton() {
+    PL_ArenaFinish();
+    PRStatus prstatus = PR_Cleanup();
+    if (prstatus != PR_SUCCESS)
+      LOG(ERROR) << "PR_Cleanup failed; was NSPR initialized on wrong thread?";
+  }
+};
+
+base::LazyInstance<NSPRInitSingleton>::Leaky
+    g_nspr_singleton = LAZY_INSTANCE_INITIALIZER;
+
+// Force a crash with error info on NSS_NoDB_Init failure.
+void CrashOnNSSInitFailure() {
+  int nss_error = PR_GetError();
+  int os_error = PR_GetOSError();
+  base::debug::Alias(&nss_error);
+  base::debug::Alias(&os_error);
+  LOG(ERROR) << "Error initializing NSS without a persistent database: "
+             << GetNSSErrorMessage();
+  LOG(FATAL) << "nss_error=" << nss_error << ", os_error=" << os_error;
+}
+
+#if defined(OS_CHROMEOS)
+class ChromeOSUserData {
+ public:
+  explicit ChromeOSUserData(ScopedPK11Slot public_slot)
+      : public_slot_(public_slot.Pass()),
+        private_slot_initialization_started_(false) {}
+  ~ChromeOSUserData() {
+    if (public_slot_) {
+      SECStatus status = SECMOD_CloseUserDB(public_slot_.get());
+      if (status != SECSuccess)
+        PLOG(ERROR) << "SECMOD_CloseUserDB failed: " << PORT_GetError();
+    }
+  }
+
+  ScopedPK11Slot GetPublicSlot() {
+    return ScopedPK11Slot(
+        public_slot_ ? PK11_ReferenceSlot(public_slot_.get()) : NULL);
+  }
+
+  ScopedPK11Slot GetPrivateSlot(
+      const base::Callback<void(ScopedPK11Slot)>& callback) {
+    if (private_slot_)
+      return ScopedPK11Slot(PK11_ReferenceSlot(private_slot_.get()));
+    if (!callback.is_null())
+      tpm_ready_callback_list_.push_back(callback);
+    return ScopedPK11Slot();
+  }
+
+  void SetPrivateSlot(ScopedPK11Slot private_slot) {
+    DCHECK(!private_slot_);
+    private_slot_ = private_slot.Pass();
+
+    SlotReadyCallbackList callback_list;
+    callback_list.swap(tpm_ready_callback_list_);
+    for (SlotReadyCallbackList::iterator i = callback_list.begin();
+         i != callback_list.end();
+         ++i) {
+      (*i).Run(ScopedPK11Slot(PK11_ReferenceSlot(private_slot_.get())));
+    }
+  }
+
+  bool private_slot_initialization_started() const {
+      return private_slot_initialization_started_;
+  }
+
+  void set_private_slot_initialization_started() {
+      private_slot_initialization_started_ = true;
+  }
+
+ private:
+  ScopedPK11Slot public_slot_;
+  ScopedPK11Slot private_slot_;
+
+  bool private_slot_initialization_started_;
+
+  typedef std::vector<base::Callback<void(ScopedPK11Slot)> >
+      SlotReadyCallbackList;
+  SlotReadyCallbackList tpm_ready_callback_list_;
+};
+#endif  // defined(OS_CHROMEOS)
+
+class NSSInitSingleton {
+ public:
+#if defined(OS_CHROMEOS)
+  // Used with PostTaskAndReply to pass handles to worker thread and back.
+  struct TPMModuleAndSlot {
+    explicit TPMModuleAndSlot(SECMODModule* init_chaps_module)
+        : chaps_module(init_chaps_module) {}
+    SECMODModule* chaps_module;
+    crypto::ScopedPK11Slot tpm_slot;
+  };
+
+  ScopedPK11Slot OpenPersistentNSSDBForPath(const std::string& db_name,
+                                            const base::FilePath& path) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    // NSS is allowed to do IO on the current thread since dispatching
+    // to a dedicated thread would still have the affect of blocking
+    // the current thread, due to NSS's internal locking requirements
+    base::ThreadRestrictions::ScopedAllowIO allow_io;
+
+    base::FilePath nssdb_path = path.AppendASCII(".pki").AppendASCII("nssdb");
+    if (!base::CreateDirectory(nssdb_path)) {
+      LOG(ERROR) << "Failed to create " << nssdb_path.value() << " directory.";
+      return ScopedPK11Slot();
+    }
+    return OpenSoftwareNSSDB(nssdb_path, db_name);
+  }
+
+  void EnableTPMTokenForNSS() {
+    DCHECK(thread_checker_.CalledOnValidThread());
+
+    // If this gets set, then we'll use the TPM for certs with
+    // private keys, otherwise we'll fall back to the software
+    // implementation.
+    tpm_token_enabled_for_nss_ = true;
+  }
+
+  bool IsTPMTokenEnabledForNSS() {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    return tpm_token_enabled_for_nss_;
+  }
+
+  void InitializeTPMTokenAndSystemSlot(
+      int system_slot_id,
+      const base::Callback<void(bool)>& callback) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    // Should not be called while there is already an initialization in
+    // progress.
+    DCHECK(!initializing_tpm_token_);
+    // If EnableTPMTokenForNSS hasn't been called, return false.
+    if (!tpm_token_enabled_for_nss_) {
+      base::MessageLoop::current()->PostTask(FROM_HERE,
+                                             base::Bind(callback, false));
+      return;
+    }
+
+    // If everything is already initialized, then return true.
+    // Note that only |tpm_slot_| is checked, since |chaps_module_| could be
+    // NULL in tests while |tpm_slot_| has been set to the test DB.
+    if (tpm_slot_) {
+      base::MessageLoop::current()->PostTask(FROM_HERE,
+                                             base::Bind(callback, true));
+      return;
+    }
+
+    // Note that a reference is not taken to chaps_module_. This is safe since
+    // NSSInitSingleton is Leaky, so the reference it holds is never released.
+    scoped_ptr<TPMModuleAndSlot> tpm_args(new TPMModuleAndSlot(chaps_module_));
+    TPMModuleAndSlot* tpm_args_ptr = tpm_args.get();
+    if (base::WorkerPool::PostTaskAndReply(
+            FROM_HERE,
+            base::Bind(&NSSInitSingleton::InitializeTPMTokenOnWorkerThread,
+                       system_slot_id,
+                       tpm_args_ptr),
+            base::Bind(&NSSInitSingleton::OnInitializedTPMTokenAndSystemSlot,
+                       base::Unretained(this),  // NSSInitSingleton is leaky
+                       callback,
+                       base::Passed(&tpm_args)),
+            true /* task_is_slow */
+            )) {
+      initializing_tpm_token_ = true;
+    } else {
+      base::MessageLoop::current()->PostTask(FROM_HERE,
+                                             base::Bind(callback, false));
+    }
+  }
+
+  static void InitializeTPMTokenOnWorkerThread(CK_SLOT_ID token_slot_id,
+                                               TPMModuleAndSlot* tpm_args) {
+    // This tries to load the Chaps module so NSS can talk to the hardware
+    // TPM.
+    if (!tpm_args->chaps_module) {
+      DVLOG(3) << "Loading chaps...";
+      tpm_args->chaps_module = LoadModule(
+          kChapsModuleName,
+          kChapsPath,
+          // For more details on these parameters, see:
+          // https://developer.mozilla.org/en/PKCS11_Module_Specs
+          // slotFlags=[PublicCerts] -- Certificates and public keys can be
+          //   read from this slot without requiring a call to C_Login.
+          // askpw=only -- Only authenticate to the token when necessary.
+          "NSS=\"slotParams=(0={slotFlags=[PublicCerts] askpw=only})\"");
+    }
+    if (tpm_args->chaps_module) {
+      tpm_args->tpm_slot =
+          GetTPMSlotForIdOnWorkerThread(tpm_args->chaps_module, token_slot_id);
+    }
+  }
+
+  void OnInitializedTPMTokenAndSystemSlot(
+      const base::Callback<void(bool)>& callback,
+      scoped_ptr<TPMModuleAndSlot> tpm_args) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    DVLOG(2) << "Loaded chaps: " << !!tpm_args->chaps_module
+             << ", got tpm slot: " << !!tpm_args->tpm_slot;
+
+    chaps_module_ = tpm_args->chaps_module;
+    tpm_slot_ = tpm_args->tpm_slot.Pass();
+    if (!chaps_module_ && test_system_slot_) {
+      // chromeos_unittests try to test the TPM initialization process. If we
+      // have a test DB open, pretend that it is the TPM slot.
+      tpm_slot_.reset(PK11_ReferenceSlot(test_system_slot_.get()));
+    }
+    initializing_tpm_token_ = false;
+
+    if (tpm_slot_)
+      RunAndClearTPMReadyCallbackList();
+
+    callback.Run(!!tpm_slot_);
+  }
+
+  void RunAndClearTPMReadyCallbackList() {
+    TPMReadyCallbackList callback_list;
+    callback_list.swap(tpm_ready_callback_list_);
+    for (TPMReadyCallbackList::iterator i = callback_list.begin();
+         i != callback_list.end();
+         ++i) {
+      i->Run();
+    }
+  }
+
+  bool IsTPMTokenReady(const base::Closure& callback) {
+    if (!callback.is_null()) {
+      // Cannot DCHECK in the general case yet, but since the callback is
+      // a new addition to the API, DCHECK to make sure at least the new uses
+      // don't regress.
+      DCHECK(thread_checker_.CalledOnValidThread());
+    } else if (!thread_checker_.CalledOnValidThread()) {
+      // TODO(mattm): Change to DCHECK when callers have been fixed.
+      DVLOG(1) << "Called on wrong thread.\n"
+               << base::debug::StackTrace().ToString();
+    }
+
+    if (tpm_slot_)
+      return true;
+
+    if (!callback.is_null())
+      tpm_ready_callback_list_.push_back(callback);
+
+    return false;
+  }
+
+  // Note that CK_SLOT_ID is an unsigned long, but cryptohome gives us the slot
+  // id as an int. This should be safe since this is only used with chaps, which
+  // we also control.
+  static crypto::ScopedPK11Slot GetTPMSlotForIdOnWorkerThread(
+      SECMODModule* chaps_module,
+      CK_SLOT_ID slot_id) {
+    DCHECK(chaps_module);
+
+    DVLOG(3) << "Poking chaps module.";
+    SECStatus rv = SECMOD_UpdateSlotList(chaps_module);
+    if (rv != SECSuccess)
+      PLOG(ERROR) << "SECMOD_UpdateSlotList failed: " << PORT_GetError();
+
+    PK11SlotInfo* slot = SECMOD_LookupSlot(chaps_module->moduleID, slot_id);
+    if (!slot)
+      LOG(ERROR) << "TPM slot " << slot_id << " not found.";
+    return crypto::ScopedPK11Slot(slot);
+  }
+
+  bool InitializeNSSForChromeOSUser(const std::string& username_hash,
+                                    const base::FilePath& path) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    if (chromeos_user_map_.find(username_hash) != chromeos_user_map_.end()) {
+      // This user already exists in our mapping.
+      DVLOG(2) << username_hash << " already initialized.";
+      return false;
+    }
+
+    DVLOG(2) << "Opening NSS DB " << path.value();
+    std::string db_name = base::StringPrintf(
+        "%s %s", kUserNSSDatabaseName, username_hash.c_str());
+    ScopedPK11Slot public_slot(OpenPersistentNSSDBForPath(db_name, path));
+    chromeos_user_map_[username_hash] =
+        new ChromeOSUserData(public_slot.Pass());
+    return true;
+  }
+
+  bool ShouldInitializeTPMForChromeOSUser(const std::string& username_hash) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    DCHECK(chromeos_user_map_.find(username_hash) != chromeos_user_map_.end());
+
+    return !chromeos_user_map_[username_hash]
+                ->private_slot_initialization_started();
+  }
+
+  void WillInitializeTPMForChromeOSUser(const std::string& username_hash) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    DCHECK(chromeos_user_map_.find(username_hash) != chromeos_user_map_.end());
+
+    chromeos_user_map_[username_hash]
+        ->set_private_slot_initialization_started();
+  }
+
+  void InitializeTPMForChromeOSUser(const std::string& username_hash,
+                                    CK_SLOT_ID slot_id) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    DCHECK(chromeos_user_map_.find(username_hash) != chromeos_user_map_.end());
+    DCHECK(chromeos_user_map_[username_hash]->
+               private_slot_initialization_started());
+
+    if (!chaps_module_)
+      return;
+
+    // Note that a reference is not taken to chaps_module_. This is safe since
+    // NSSInitSingleton is Leaky, so the reference it holds is never released.
+    scoped_ptr<TPMModuleAndSlot> tpm_args(new TPMModuleAndSlot(chaps_module_));
+    TPMModuleAndSlot* tpm_args_ptr = tpm_args.get();
+    base::WorkerPool::PostTaskAndReply(
+        FROM_HERE,
+        base::Bind(&NSSInitSingleton::InitializeTPMTokenOnWorkerThread,
+                   slot_id,
+                   tpm_args_ptr),
+        base::Bind(&NSSInitSingleton::OnInitializedTPMForChromeOSUser,
+                   base::Unretained(this),  // NSSInitSingleton is leaky
+                   username_hash,
+                   base::Passed(&tpm_args)),
+        true /* task_is_slow */
+        );
+  }
+
+  void OnInitializedTPMForChromeOSUser(const std::string& username_hash,
+                                       scoped_ptr<TPMModuleAndSlot> tpm_args) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    DVLOG(2) << "Got tpm slot for " << username_hash << " "
+             << !!tpm_args->tpm_slot;
+    chromeos_user_map_[username_hash]->SetPrivateSlot(
+        tpm_args->tpm_slot.Pass());
+  }
+
+  void InitializePrivateSoftwareSlotForChromeOSUser(
+      const std::string& username_hash) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    VLOG(1) << "using software private slot for " << username_hash;
+    DCHECK(chromeos_user_map_.find(username_hash) != chromeos_user_map_.end());
+    DCHECK(chromeos_user_map_[username_hash]->
+               private_slot_initialization_started());
+
+    chromeos_user_map_[username_hash]->SetPrivateSlot(
+        chromeos_user_map_[username_hash]->GetPublicSlot());
+  }
+
+  ScopedPK11Slot GetPublicSlotForChromeOSUser(
+      const std::string& username_hash) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+
+    if (username_hash.empty()) {
+      DVLOG(2) << "empty username_hash";
+      return ScopedPK11Slot();
+    }
+
+    if (chromeos_user_map_.find(username_hash) == chromeos_user_map_.end()) {
+      LOG(ERROR) << username_hash << " not initialized.";
+      return ScopedPK11Slot();
+    }
+    return chromeos_user_map_[username_hash]->GetPublicSlot();
+  }
+
+  ScopedPK11Slot GetPrivateSlotForChromeOSUser(
+      const std::string& username_hash,
+      const base::Callback<void(ScopedPK11Slot)>& callback) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+
+    if (username_hash.empty()) {
+      DVLOG(2) << "empty username_hash";
+      if (!callback.is_null()) {
+        base::MessageLoop::current()->PostTask(
+            FROM_HERE, base::Bind(callback, base::Passed(ScopedPK11Slot())));
+      }
+      return ScopedPK11Slot();
+    }
+
+    DCHECK(chromeos_user_map_.find(username_hash) != chromeos_user_map_.end());
+
+    return chromeos_user_map_[username_hash]->GetPrivateSlot(callback);
+  }
+
+  void CloseChromeOSUserForTesting(const std::string& username_hash) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    ChromeOSUserMap::iterator i = chromeos_user_map_.find(username_hash);
+    DCHECK(i != chromeos_user_map_.end());
+    delete i->second;
+    chromeos_user_map_.erase(i);
+  }
+
+  void SetSystemKeySlotForTesting(ScopedPK11Slot slot) {
+    // Ensure that a previous value of test_system_slot_ is not overwritten.
+    // Unsetting, i.e. setting a NULL, however is allowed.
+    DCHECK(!slot || !test_system_slot_);
+    test_system_slot_ = slot.Pass();
+    if (test_system_slot_) {
+      tpm_slot_.reset(PK11_ReferenceSlot(test_system_slot_.get()));
+      RunAndClearTPMReadyCallbackList();
+    } else {
+      tpm_slot_.reset();
+    }
+  }
+#endif  // defined(OS_CHROMEOS)
+
+#if !defined(OS_CHROMEOS)
+  PK11SlotInfo* GetPersistentNSSKeySlot() {
+    // TODO(mattm): Change to DCHECK when callers have been fixed.
+    if (!thread_checker_.CalledOnValidThread()) {
+      DVLOG(1) << "Called on wrong thread.\n"
+               << base::debug::StackTrace().ToString();
+    }
+
+    return PK11_GetInternalKeySlot();
+  }
+#endif
+
+#if defined(OS_CHROMEOS)
+  void GetSystemNSSKeySlotCallback(
+      const base::Callback<void(ScopedPK11Slot)>& callback) {
+    callback.Run(ScopedPK11Slot(PK11_ReferenceSlot(tpm_slot_.get())));
+  }
+
+  ScopedPK11Slot GetSystemNSSKeySlot(
+      const base::Callback<void(ScopedPK11Slot)>& callback) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    // TODO(mattm): chromeos::TPMTokenloader always calls
+    // InitializeTPMTokenAndSystemSlot with slot 0.  If the system slot is
+    // disabled, tpm_slot_ will be the first user's slot instead. Can that be
+    // detected and return NULL instead?
+
+    base::Closure wrapped_callback;
+    if (!callback.is_null()) {
+      wrapped_callback =
+          base::Bind(&NSSInitSingleton::GetSystemNSSKeySlotCallback,
+                     base::Unretained(this) /* singleton is leaky */,
+                     callback);
+    }
+    if (IsTPMTokenReady(wrapped_callback))
+      return ScopedPK11Slot(PK11_ReferenceSlot(tpm_slot_.get()));
+    return ScopedPK11Slot();
+  }
+#endif
+
+#if defined(USE_NSS)
+  base::Lock* write_lock() {
+    return &write_lock_;
+  }
+#endif  // defined(USE_NSS)
+
+  // This method is used to force NSS to be initialized without a DB.
+  // Call this method before NSSInitSingleton() is constructed.
+  static void ForceNoDBInit() {
+    force_nodb_init_ = true;
+  }
+
+ private:
+  friend struct base::DefaultLazyInstanceTraits<NSSInitSingleton>;
+
+  NSSInitSingleton()
+      : tpm_token_enabled_for_nss_(false),
+        initializing_tpm_token_(false),
+        chaps_module_(NULL),
+        root_(NULL) {
+    base::TimeTicks start_time = base::TimeTicks::Now();
+
+    // It's safe to construct on any thread, since LazyInstance will prevent any
+    // other threads from accessing until the constructor is done.
+    thread_checker_.DetachFromThread();
+
+    DisableAESNIIfNeeded();
+
+    EnsureNSPRInit();
+
+    // We *must* have NSS >= 3.14.3.
+    COMPILE_ASSERT(
+        (NSS_VMAJOR == 3 && NSS_VMINOR == 14 && NSS_VPATCH >= 3) ||
+        (NSS_VMAJOR == 3 && NSS_VMINOR > 14) ||
+        (NSS_VMAJOR > 3),
+        nss_version_check_failed);
+    // Also check the run-time NSS version.
+    // NSS_VersionCheck is a >= check, not strict equality.
+    if (!NSS_VersionCheck("3.14.3")) {
+      LOG(FATAL) << "NSS_VersionCheck(\"3.14.3\") failed. NSS >= 3.14.3 is "
+                    "required. Please upgrade to the latest NSS, and if you "
+                    "still get this error, contact your distribution "
+                    "maintainer.";
+    }
+
+    SECStatus status = SECFailure;
+    bool nodb_init = force_nodb_init_;
+
+#if !defined(USE_NSS)
+    // Use the system certificate store, so initialize NSS without database.
+    nodb_init = true;
+#endif
+
+    if (nodb_init) {
+      status = NSS_NoDB_Init(NULL);
+      if (status != SECSuccess) {
+        CrashOnNSSInitFailure();
+        return;
+      }
+#if defined(OS_IOS)
+      root_ = InitDefaultRootCerts();
+#endif  // defined(OS_IOS)
+    } else {
+#if defined(USE_NSS)
+      base::FilePath database_dir = GetInitialConfigDirectory();
+      if (!database_dir.empty()) {
+        // This duplicates the work which should have been done in
+        // EarlySetupForNSSInit. However, this function is idempotent so
+        // there's no harm done.
+        UseLocalCacheOfNSSDatabaseIfNFS(database_dir);
+
+        // Initialize with a persistent database (likely, ~/.pki/nssdb).
+        // Use "sql:" which can be shared by multiple processes safely.
+        std::string nss_config_dir =
+            base::StringPrintf("sql:%s", database_dir.value().c_str());
+#if defined(OS_CHROMEOS)
+        status = NSS_Init(nss_config_dir.c_str());
+#else
+        status = NSS_InitReadWrite(nss_config_dir.c_str());
+#endif
+        if (status != SECSuccess) {
+          LOG(ERROR) << "Error initializing NSS with a persistent "
+                        "database (" << nss_config_dir
+                     << "): " << GetNSSErrorMessage();
+        }
+      }
+      if (status != SECSuccess) {
+        VLOG(1) << "Initializing NSS without a persistent database.";
+        status = NSS_NoDB_Init(NULL);
+        if (status != SECSuccess) {
+          CrashOnNSSInitFailure();
+          return;
+        }
+      }
+
+      PK11_SetPasswordFunc(PKCS11PasswordFunc);
+
+      // If we haven't initialized the password for the NSS databases,
+      // initialize an empty-string password so that we don't need to
+      // log in.
+      PK11SlotInfo* slot = PK11_GetInternalKeySlot();
+      if (slot) {
+        // PK11_InitPin may write to the keyDB, but no other thread can use NSS
+        // yet, so we don't need to lock.
+        if (PK11_NeedUserInit(slot))
+          PK11_InitPin(slot, NULL, NULL);
+        PK11_FreeSlot(slot);
+      }
+
+      root_ = InitDefaultRootCerts();
+#endif  // defined(USE_NSS)
+    }
+
+    // Disable MD5 certificate signatures. (They are disabled by default in
+    // NSS 3.14.)
+    NSS_SetAlgorithmPolicy(SEC_OID_MD5, 0, NSS_USE_ALG_IN_CERT_SIGNATURE);
+    NSS_SetAlgorithmPolicy(SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION,
+                           0, NSS_USE_ALG_IN_CERT_SIGNATURE);
+
+    // The UMA bit is conditionally set for this histogram in
+    // components/startup_metric_utils.cc .
+    LOCAL_HISTOGRAM_CUSTOM_TIMES("Startup.SlowStartupNSSInit",
+                                 base::TimeTicks::Now() - start_time,
+                                 base::TimeDelta::FromMilliseconds(10),
+                                 base::TimeDelta::FromHours(1),
+                                 50);
+  }
+
+  // NOTE(willchan): We don't actually execute this code since we leak NSS to
+  // prevent non-joinable threads from using NSS after it's already been shut
+  // down.
+  ~NSSInitSingleton() {
+#if defined(OS_CHROMEOS)
+    STLDeleteValues(&chromeos_user_map_);
+#endif
+    tpm_slot_.reset();
+    if (root_) {
+      SECMOD_UnloadUserModule(root_);
+      SECMOD_DestroyModule(root_);
+      root_ = NULL;
+    }
+    if (chaps_module_) {
+      SECMOD_UnloadUserModule(chaps_module_);
+      SECMOD_DestroyModule(chaps_module_);
+      chaps_module_ = NULL;
+    }
+
+    SECStatus status = NSS_Shutdown();
+    if (status != SECSuccess) {
+      // We VLOG(1) because this failure is relatively harmless (leaking, but
+      // we're shutting down anyway).
+      VLOG(1) << "NSS_Shutdown failed; see http://crbug.com/4609";
+    }
+  }
+
+#if defined(USE_NSS) || defined(OS_IOS)
+  // Load nss's built-in root certs.
+  SECMODModule* InitDefaultRootCerts() {
+    SECMODModule* root = LoadModule("Root Certs", "libnssckbi.so", NULL);
+    if (root)
+      return root;
+
+    // Aw, snap.  Can't find/load root cert shared library.
+    // This will make it hard to talk to anybody via https.
+    // TODO(mattm): Re-add the NOTREACHED here when crbug.com/310972 is fixed.
+    return NULL;
+  }
+
+  // Load the given module for this NSS session.
+  static SECMODModule* LoadModule(const char* name,
+                                  const char* library_path,
+                                  const char* params) {
+    std::string modparams = base::StringPrintf(
+        "name=\"%s\" library=\"%s\" %s",
+        name, library_path, params ? params : "");
+
+    // Shouldn't need to const_cast here, but SECMOD doesn't properly
+    // declare input string arguments as const.  Bug
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=642546 was filed
+    // on NSS codebase to address this.
+    SECMODModule* module = SECMOD_LoadUserModule(
+        const_cast<char*>(modparams.c_str()), NULL, PR_FALSE);
+    if (!module) {
+      LOG(ERROR) << "Error loading " << name << " module into NSS: "
+                 << GetNSSErrorMessage();
+      return NULL;
+    }
+    if (!module->loaded) {
+      LOG(ERROR) << "After loading " << name << ", loaded==false: "
+                 << GetNSSErrorMessage();
+      SECMOD_DestroyModule(module);
+      return NULL;
+    }
+    return module;
+  }
+#endif
+
+  static void DisableAESNIIfNeeded() {
+    if (NSS_VersionCheck("3.15") && !NSS_VersionCheck("3.15.4")) {
+      // Some versions of NSS have a bug that causes AVX instructions to be
+      // used without testing whether XSAVE is enabled by the operating system.
+      // In order to work around this, we disable AES-NI in NSS when we find
+      // that |has_avx()| is false (which includes the XSAVE test). See
+      // https://bugzilla.mozilla.org/show_bug.cgi?id=940794
+      base::CPU cpu;
+
+      if (cpu.has_avx_hardware() && !cpu.has_avx()) {
+        base::Environment::Create()->SetVar("NSS_DISABLE_HW_AES", "1");
+      }
+    }
+  }
+
+  // If this is set to true NSS is forced to be initialized without a DB.
+  static bool force_nodb_init_;
+
+  bool tpm_token_enabled_for_nss_;
+  bool initializing_tpm_token_;
+  typedef std::vector<base::Closure> TPMReadyCallbackList;
+  TPMReadyCallbackList tpm_ready_callback_list_;
+  SECMODModule* chaps_module_;
+  crypto::ScopedPK11Slot tpm_slot_;
+  SECMODModule* root_;
+#if defined(OS_CHROMEOS)
+  typedef std::map<std::string, ChromeOSUserData*> ChromeOSUserMap;
+  ChromeOSUserMap chromeos_user_map_;
+  ScopedPK11Slot test_system_slot_;
+#endif
+#if defined(USE_NSS)
+  // TODO(davidben): When https://bugzilla.mozilla.org/show_bug.cgi?id=564011
+  // is fixed, we will no longer need the lock.
+  base::Lock write_lock_;
+#endif  // defined(USE_NSS)
+
+  base::ThreadChecker thread_checker_;
+};
+
+// static
+bool NSSInitSingleton::force_nodb_init_ = false;
+
+base::LazyInstance<NSSInitSingleton>::Leaky
+    g_nss_singleton = LAZY_INSTANCE_INITIALIZER;
+}  // namespace
+
+#if defined(USE_NSS)
+ScopedPK11Slot OpenSoftwareNSSDB(const base::FilePath& path,
+                                 const std::string& description) {
+  const std::string modspec =
+      base::StringPrintf("configDir='sql:%s' tokenDescription='%s'",
+                         path.value().c_str(),
+                         description.c_str());
+  PK11SlotInfo* db_slot = SECMOD_OpenUserDB(modspec.c_str());
+  if (db_slot) {
+    if (PK11_NeedUserInit(db_slot))
+      PK11_InitPin(db_slot, NULL, NULL);
+  } else {
+    LOG(ERROR) << "Error opening persistent database (" << modspec
+               << "): " << GetNSSErrorMessage();
+  }
+  return ScopedPK11Slot(db_slot);
+}
+
+void EarlySetupForNSSInit() {
+  base::FilePath database_dir = GetInitialConfigDirectory();
+  if (!database_dir.empty())
+    UseLocalCacheOfNSSDatabaseIfNFS(database_dir);
+}
+#endif
+
+void EnsureNSPRInit() {
+  g_nspr_singleton.Get();
+}
+
+void InitNSSSafely() {
+  // We might fork, but we haven't loaded any security modules.
+  DisableNSSForkCheck();
+  // If we're sandboxed, we shouldn't be able to open user security modules,
+  // but it's more correct to tell NSS to not even try.
+  // Loading user security modules would have security implications.
+  ForceNSSNoDBInit();
+  // Initialize NSS.
+  EnsureNSSInit();
+}
+
+void EnsureNSSInit() {
+  // Initializing SSL causes us to do blocking IO.
+  // Temporarily allow it until we fix
+  //   http://code.google.com/p/chromium/issues/detail?id=59847
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
+  g_nss_singleton.Get();
+}
+
+void ForceNSSNoDBInit() {
+  NSSInitSingleton::ForceNoDBInit();
+}
+
+void DisableNSSForkCheck() {
+  scoped_ptr<base::Environment> env(base::Environment::Create());
+  env->SetVar("NSS_STRICT_NOFORK", "DISABLED");
+}
+
+void LoadNSSLibraries() {
+  // Some NSS libraries are linked dynamically so load them here.
+#if defined(USE_NSS)
+  // Try to search for multiple directories to load the libraries.
+  std::vector<base::FilePath> paths;
+
+  // Use relative path to Search PATH for the library files.
+  paths.push_back(base::FilePath());
+
+  // For Debian derivatives NSS libraries are located here.
+  paths.push_back(base::FilePath("/usr/lib/nss"));
+
+  // Ubuntu 11.10 (Oneiric) and Debian Wheezy place the libraries here.
+#if defined(ARCH_CPU_X86_64)
+  paths.push_back(base::FilePath("/usr/lib/x86_64-linux-gnu/nss"));
+#elif defined(ARCH_CPU_X86)
+  paths.push_back(base::FilePath("/usr/lib/i386-linux-gnu/nss"));
+#elif defined(ARCH_CPU_ARMEL)
+#if defined(__ARM_PCS_VFP)
+  paths.push_back(base::FilePath("/usr/lib/arm-linux-gnueabihf/nss"));
+#else
+  paths.push_back(base::FilePath("/usr/lib/arm-linux-gnueabi/nss"));
+#endif  // defined(__ARM_PCS_VFP)
+#elif defined(ARCH_CPU_MIPSEL)
+  paths.push_back(base::FilePath("/usr/lib/mipsel-linux-gnu/nss"));
+#endif  // defined(ARCH_CPU_X86_64)
+
+  // A list of library files to load.
+  std::vector<std::string> libs;
+  libs.push_back("libsoftokn3.so");
+  libs.push_back("libfreebl3.so");
+
+  // For each combination of library file and path, check for existence and
+  // then load.
+  size_t loaded = 0;
+  for (size_t i = 0; i < libs.size(); ++i) {
+    for (size_t j = 0; j < paths.size(); ++j) {
+      base::FilePath path = paths[j].Append(libs[i]);
+      base::NativeLibrary lib = base::LoadNativeLibrary(path, NULL);
+      if (lib) {
+        ++loaded;
+        break;
+      }
+    }
+  }
+
+  if (loaded == libs.size()) {
+    VLOG(3) << "NSS libraries loaded.";
+  } else {
+    LOG(ERROR) << "Failed to load NSS libraries.";
+  }
+#endif  // defined(USE_NSS)
+}
+
+bool CheckNSSVersion(const char* version) {
+  return !!NSS_VersionCheck(version);
+}
+
+#if defined(USE_NSS)
+base::Lock* GetNSSWriteLock() {
+  return g_nss_singleton.Get().write_lock();
+}
+
+AutoNSSWriteLock::AutoNSSWriteLock() : lock_(GetNSSWriteLock()) {
+  // May be NULL if the lock is not needed in our version of NSS.
+  if (lock_)
+    lock_->Acquire();
+}
+
+AutoNSSWriteLock::~AutoNSSWriteLock() {
+  if (lock_) {
+    lock_->AssertAcquired();
+    lock_->Release();
+  }
+}
+
+AutoSECMODListReadLock::AutoSECMODListReadLock()
+      : lock_(SECMOD_GetDefaultModuleListLock()) {
+    SECMOD_GetReadLock(lock_);
+  }
+
+AutoSECMODListReadLock::~AutoSECMODListReadLock() {
+  SECMOD_ReleaseReadLock(lock_);
+}
+#endif  // defined(USE_NSS)
+
+#if defined(OS_CHROMEOS)
+ScopedPK11Slot GetSystemNSSKeySlot(
+    const base::Callback<void(ScopedPK11Slot)>& callback) {
+  return g_nss_singleton.Get().GetSystemNSSKeySlot(callback);
+}
+
+void SetSystemKeySlotForTesting(ScopedPK11Slot slot) {
+  g_nss_singleton.Get().SetSystemKeySlotForTesting(slot.Pass());
+}
+
+void EnableTPMTokenForNSS() {
+  g_nss_singleton.Get().EnableTPMTokenForNSS();
+}
+
+bool IsTPMTokenEnabledForNSS() {
+  return g_nss_singleton.Get().IsTPMTokenEnabledForNSS();
+}
+
+bool IsTPMTokenReady(const base::Closure& callback) {
+  return g_nss_singleton.Get().IsTPMTokenReady(callback);
+}
+
+void InitializeTPMTokenAndSystemSlot(
+    int token_slot_id,
+    const base::Callback<void(bool)>& callback) {
+  g_nss_singleton.Get().InitializeTPMTokenAndSystemSlot(token_slot_id,
+                                                        callback);
+}
+
+bool InitializeNSSForChromeOSUser(const std::string& username_hash,
+                                  const base::FilePath& path) {
+  return g_nss_singleton.Get().InitializeNSSForChromeOSUser(username_hash,
+                                                            path);
+}
+
+bool ShouldInitializeTPMForChromeOSUser(const std::string& username_hash) {
+  return g_nss_singleton.Get().ShouldInitializeTPMForChromeOSUser(
+      username_hash);
+}
+
+void WillInitializeTPMForChromeOSUser(const std::string& username_hash) {
+  g_nss_singleton.Get().WillInitializeTPMForChromeOSUser(username_hash);
+}
+
+void InitializeTPMForChromeOSUser(
+    const std::string& username_hash,
+    CK_SLOT_ID slot_id) {
+  g_nss_singleton.Get().InitializeTPMForChromeOSUser(username_hash, slot_id);
+}
+
+void InitializePrivateSoftwareSlotForChromeOSUser(
+    const std::string& username_hash) {
+  g_nss_singleton.Get().InitializePrivateSoftwareSlotForChromeOSUser(
+      username_hash);
+}
+
+ScopedPK11Slot GetPublicSlotForChromeOSUser(const std::string& username_hash) {
+  return g_nss_singleton.Get().GetPublicSlotForChromeOSUser(username_hash);
+}
+
+ScopedPK11Slot GetPrivateSlotForChromeOSUser(
+    const std::string& username_hash,
+    const base::Callback<void(ScopedPK11Slot)>& callback) {
+  return g_nss_singleton.Get().GetPrivateSlotForChromeOSUser(username_hash,
+                                                             callback);
+}
+
+void CloseChromeOSUserForTesting(const std::string& username_hash) {
+  g_nss_singleton.Get().CloseChromeOSUserForTesting(username_hash);
+}
+#endif  // defined(OS_CHROMEOS)
+
+base::Time PRTimeToBaseTime(PRTime prtime) {
+  return base::Time::FromInternalValue(
+      prtime + base::Time::UnixEpoch().ToInternalValue());
+}
+
+PRTime BaseTimeToPRTime(base::Time time) {
+  return time.ToInternalValue() - base::Time::UnixEpoch().ToInternalValue();
+}
+
+#if !defined(OS_CHROMEOS)
+PK11SlotInfo* GetPersistentNSSKeySlot() {
+  return g_nss_singleton.Get().GetPersistentNSSKeySlot();
+}
+#endif
+
+}  // namespace crypto
diff --git a/crypto/nss_util.h b/crypto/nss_util.h
new file mode 100644
index 0000000..56fdfa6
--- /dev/null
+++ b/crypto/nss_util.h
@@ -0,0 +1,155 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_NSS_UTIL_H_
+#define CRYPTO_NSS_UTIL_H_
+
+#include <string>
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "crypto/crypto_export.h"
+
+namespace base {
+class FilePath;
+class Lock;
+class Time;
+}  // namespace base
+
+// This file specifically doesn't depend on any NSS or NSPR headers because it
+// is included by various (non-crypto) parts of chrome to call the
+// initialization functions.
+namespace crypto {
+
+#if defined(USE_NSS)
+// EarlySetupForNSSInit performs lightweight setup which must occur before the
+// process goes multithreaded. This does not initialise NSS. For test, see
+// EnsureNSSInit.
+CRYPTO_EXPORT void EarlySetupForNSSInit();
+#endif
+
+// Initialize NRPR if it isn't already initialized.  This function is
+// thread-safe, and NSPR will only ever be initialized once.
+CRYPTO_EXPORT void EnsureNSPRInit();
+
+// Initialize NSS safely for strict sandboxing.  This function tells NSS to not
+// load user security modules, and makes sure NSS will have proper entropy in a
+// restricted, sandboxed environment.
+//
+// As a defense in depth measure, this function should be called in a sandboxed
+// environment.  That way, in the event of a bug, NSS will still not be able to
+// load security modules that could expose private data and keys.
+//
+// Make sure to get an LGTM from the Chrome Security Team if you use this.
+CRYPTO_EXPORT void InitNSSSafely();
+
+// Initialize NSS if it isn't already initialized.  This must be called before
+// any other NSS functions.  This function is thread-safe, and NSS will only
+// ever be initialized once.
+CRYPTO_EXPORT void EnsureNSSInit();
+
+// Call this before calling EnsureNSSInit() will force NSS to initialize
+// without a persistent DB.  This is used for the special case where access of
+// persistent DB is prohibited.
+//
+// TODO(hclam): Isolate loading default root certs.
+//
+// NSS will be initialized without loading any user security modules, including
+// the built-in root certificates module. User security modules need to be
+// loaded manually after NSS initialization.
+//
+// If EnsureNSSInit() is called before then this function has no effect.
+//
+// Calling this method only has effect on Linux.
+//
+// WARNING: Use this with caution.
+CRYPTO_EXPORT void ForceNSSNoDBInit();
+
+// This method is used to disable checks in NSS when used in a forked process.
+// NSS checks whether it is running a forked process to avoid problems when
+// using user security modules in a forked process.  However if we are sure
+// there are no modules loaded before the process is forked then there is no
+// harm disabling the check.
+//
+// This method must be called before EnsureNSSInit() to take effect.
+//
+// WARNING: Use this with caution.
+CRYPTO_EXPORT void DisableNSSForkCheck();
+
+// Load NSS library files. This function has no effect on Mac and Windows.
+// This loads the necessary NSS library files so that NSS can be initialized
+// after loading additional library files is disallowed, for example when the
+// sandbox is active.
+//
+// Note that this does not load libnssckbi.so which contains the root
+// certificates.
+CRYPTO_EXPORT void LoadNSSLibraries();
+
+// Check if the current NSS version is greater than or equals to |version|.
+// A sample version string is "3.12.3".
+bool CheckNSSVersion(const char* version);
+
+#if defined(OS_CHROMEOS)
+// Indicates that NSS should use the Chaps library so that we
+// can access the TPM through NSS.  InitializeTPMTokenAndSystemSlot and
+// InitializeTPMForChromeOSUser must still be called to load the slots.
+CRYPTO_EXPORT void EnableTPMTokenForNSS();
+
+// Returns true if EnableTPMTokenForNSS has been called.
+CRYPTO_EXPORT bool IsTPMTokenEnabledForNSS();
+
+// Returns true if the TPM is owned and PKCS#11 initialized with the
+// user and security officer PINs, and has been enabled in NSS by
+// calling EnableTPMForNSS, and Chaps has been successfully
+// loaded into NSS.
+// If |callback| is non-null and the function returns false, the |callback| will
+// be run once the TPM is ready. |callback| will never be run if the function
+// returns true.
+CRYPTO_EXPORT bool IsTPMTokenReady(const base::Closure& callback)
+    WARN_UNUSED_RESULT;
+
+// Initialize the TPM token and system slot. The |callback| will run on the same
+// thread with true if the token and slot were successfully loaded or were
+// already initialized. |callback| will be passed false if loading failed.  Once
+// called, InitializeTPMTokenAndSystemSlot must not be called again until the
+// |callback| has been run.
+CRYPTO_EXPORT void InitializeTPMTokenAndSystemSlot(
+    int system_slot_id,
+    const base::Callback<void(bool)>& callback);
+#endif
+
+// Convert a NSS PRTime value into a base::Time object.
+// We use a int64 instead of PRTime here to avoid depending on NSPR headers.
+CRYPTO_EXPORT base::Time PRTimeToBaseTime(int64 prtime);
+
+// Convert a base::Time object into a PRTime value.
+// We use a int64 instead of PRTime here to avoid depending on NSPR headers.
+CRYPTO_EXPORT int64 BaseTimeToPRTime(base::Time time);
+
+#if defined(USE_NSS)
+// NSS has a bug which can cause a deadlock or stall in some cases when writing
+// to the certDB and keyDB. It also has a bug which causes concurrent key pair
+// generations to scribble over each other. To work around this, we synchronize
+// writes to the NSS databases with a global lock. The lock is hidden beneath a
+// function for easy disabling when the bug is fixed. Callers should allow for
+// it to return NULL in the future.
+//
+// See https://bugzilla.mozilla.org/show_bug.cgi?id=564011
+base::Lock* GetNSSWriteLock();
+
+// A helper class that acquires the NSS write Lock while the AutoNSSWriteLock
+// is in scope.
+class CRYPTO_EXPORT AutoNSSWriteLock {
+ public:
+  AutoNSSWriteLock();
+  ~AutoNSSWriteLock();
+ private:
+  base::Lock *lock_;
+  DISALLOW_COPY_AND_ASSIGN(AutoNSSWriteLock);
+};
+#endif  // defined(USE_NSS)
+
+}  // namespace crypto
+
+#endif  // CRYPTO_NSS_UTIL_H_
diff --git a/crypto/nss_util_internal.h b/crypto/nss_util_internal.h
new file mode 100644
index 0000000..f321343
--- /dev/null
+++ b/crypto/nss_util_internal.h
@@ -0,0 +1,113 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_NSS_UTIL_INTERNAL_H_
+#define CRYPTO_NSS_UTIL_INTERNAL_H_
+
+#include <secmodt.h>
+
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "crypto/crypto_export.h"
+#include "crypto/scoped_nss_types.h"
+
+namespace base {
+class FilePath;
+}
+
+// These functions return a type defined in an NSS header, and so cannot be
+// declared in nss_util.h.  Hence, they are declared here.
+
+namespace crypto {
+
+// Opens an NSS software database in folder |path|, with the (potentially)
+// user-visible description |description|. Returns the slot for the opened
+// database, or NULL if the database could not be opened.
+CRYPTO_EXPORT_PRIVATE ScopedPK11Slot
+    OpenSoftwareNSSDB(const base::FilePath& path,
+                      const std::string& description);
+
+#if !defined(OS_CHROMEOS)
+// Returns a reference to the default NSS key slot for storing persistent data.
+// Caller must release returned reference with PK11_FreeSlot.
+CRYPTO_EXPORT PK11SlotInfo* GetPersistentNSSKeySlot() WARN_UNUSED_RESULT;
+#endif
+
+// A helper class that acquires the SECMOD list read lock while the
+// AutoSECMODListReadLock is in scope.
+class CRYPTO_EXPORT AutoSECMODListReadLock {
+ public:
+  AutoSECMODListReadLock();
+  ~AutoSECMODListReadLock();
+
+ private:
+  SECMODListLock* lock_;
+  DISALLOW_COPY_AND_ASSIGN(AutoSECMODListReadLock);
+};
+
+#if defined(OS_CHROMEOS)
+// Returns a reference to the system-wide TPM slot if it is loaded. If it is not
+// loaded and |callback| is non-null, the |callback| will be run once the slot
+// is loaded.
+CRYPTO_EXPORT ScopedPK11Slot GetSystemNSSKeySlot(
+    const base::Callback<void(ScopedPK11Slot)>& callback) WARN_UNUSED_RESULT;
+
+// Sets the test system slot to |slot|, which means that |slot| will be exposed
+// through |GetSystemNSSKeySlot| and |IsTPMTokenReady| will return true.
+// |InitializeTPMTokenAndSystemSlot|, which triggers the TPM initialization,
+// does not have to be called if the test system slot is set.
+// This must must not be called consecutively with a |slot| != NULL. If |slot|
+// is NULL, the test system slot is unset.
+CRYPTO_EXPORT_PRIVATE void SetSystemKeySlotForTesting(ScopedPK11Slot slot);
+
+// Prepare per-user NSS slot mapping. It is safe to call this function multiple
+// times. Returns true if the user was added, or false if it already existed.
+CRYPTO_EXPORT bool InitializeNSSForChromeOSUser(
+    const std::string& username_hash,
+    const base::FilePath& path);
+
+// Returns whether TPM for ChromeOS user still needs initialization. If
+// true is returned, the caller can proceed to initialize TPM slot for the
+// user, but should call |WillInitializeTPMForChromeOSUser| first.
+// |InitializeNSSForChromeOSUser| must have been called first.
+CRYPTO_EXPORT bool ShouldInitializeTPMForChromeOSUser(
+    const std::string& username_hash) WARN_UNUSED_RESULT;
+
+// Makes |ShouldInitializeTPMForChromeOSUser| start returning false.
+// Should be called before starting TPM initialization for the user.
+// Assumes |InitializeNSSForChromeOSUser| had already been called.
+CRYPTO_EXPORT void WillInitializeTPMForChromeOSUser(
+    const std::string& username_hash);
+
+// Use TPM slot |slot_id| for user.  InitializeNSSForChromeOSUser must have been
+// called first.
+CRYPTO_EXPORT void InitializeTPMForChromeOSUser(
+    const std::string& username_hash,
+    CK_SLOT_ID slot_id);
+
+// Use the software slot as the private slot for user.
+// InitializeNSSForChromeOSUser must have been called first.
+CRYPTO_EXPORT void InitializePrivateSoftwareSlotForChromeOSUser(
+    const std::string& username_hash);
+
+// Returns a reference to the public slot for user.
+CRYPTO_EXPORT ScopedPK11Slot GetPublicSlotForChromeOSUser(
+    const std::string& username_hash) WARN_UNUSED_RESULT;
+
+// Returns the private slot for |username_hash| if it is loaded. If it is not
+// loaded and |callback| is non-null, the |callback| will be run once the slot
+// is loaded.
+CRYPTO_EXPORT ScopedPK11Slot GetPrivateSlotForChromeOSUser(
+    const std::string& username_hash,
+    const base::Callback<void(ScopedPK11Slot)>& callback) WARN_UNUSED_RESULT;
+
+// Closes the NSS DB for |username_hash| that was previously opened by the
+// *Initialize*ForChromeOSUser functions.
+CRYPTO_EXPORT_PRIVATE void CloseChromeOSUserForTesting(
+    const std::string& username_hash);
+#endif  // defined(OS_CHROMEOS)
+
+}  // namespace crypto
+
+#endif  // CRYPTO_NSS_UTIL_INTERNAL_H_
diff --git a/crypto/nss_util_unittest.cc b/crypto/nss_util_unittest.cc
new file mode 100644
index 0000000..b687885
--- /dev/null
+++ b/crypto/nss_util_unittest.cc
@@ -0,0 +1,40 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/nss_util.h"
+
+#include <prtime.h>
+
+#include "base/time/time.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+TEST(NSSUtilTest, PRTimeConversion) {
+  EXPECT_EQ(base::Time::UnixEpoch(), PRTimeToBaseTime(0));
+  EXPECT_EQ(0, BaseTimeToPRTime(base::Time::UnixEpoch()));
+
+  PRExplodedTime prxtime;
+  prxtime.tm_params.tp_gmt_offset = 0;
+  prxtime.tm_params.tp_dst_offset = 0;
+  base::Time::Exploded exploded;
+  prxtime.tm_year = exploded.year = 2011;
+  exploded.month = 12;
+  prxtime.tm_month = 11;
+  prxtime.tm_wday = exploded.day_of_week = 0;  // Should be unusued.
+  prxtime.tm_mday = exploded.day_of_month = 10;
+  prxtime.tm_hour = exploded.hour = 2;
+  prxtime.tm_min = exploded.minute = 52;
+  prxtime.tm_sec = exploded.second = 19;
+  exploded.millisecond = 342;
+  prxtime.tm_usec = 342000;
+
+  PRTime pr_time = PR_ImplodeTime(&prxtime);
+  base::Time base_time = base::Time::FromUTCExploded(exploded);
+
+  EXPECT_EQ(base_time, PRTimeToBaseTime(pr_time));
+  EXPECT_EQ(pr_time, BaseTimeToPRTime(base_time));
+}
+
+}  // namespace crypto
diff --git a/crypto/openssl_bio_string.cc b/crypto/openssl_bio_string.cc
new file mode 100644
index 0000000..4880500
--- /dev/null
+++ b/crypto/openssl_bio_string.cc
@@ -0,0 +1,77 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/openssl_bio_string.h"
+
+#include <openssl/bio.h>
+#include <string.h>
+
+namespace crypto {
+
+namespace {
+
+int bio_string_write(BIO* bio, const char* data, int len) {
+  reinterpret_cast<std::string*>(bio->ptr)->append(data, len);
+  return len;
+}
+
+int bio_string_puts(BIO* bio, const char* data) {
+  // Note: unlike puts(), BIO_puts does not add a newline.
+  return bio_string_write(bio, data, strlen(data));
+}
+
+long bio_string_ctrl(BIO* bio, int cmd, long num, void* ptr) {
+  std::string* str = reinterpret_cast<std::string*>(bio->ptr);
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      str->clear();
+      return 1;
+    case BIO_C_FILE_SEEK:
+      return -1;
+    case BIO_C_FILE_TELL:
+      return str->size();
+    case BIO_CTRL_FLUSH:
+      return 1;
+    default:
+      return 0;
+  }
+}
+
+int bio_string_new(BIO* bio) {
+  bio->ptr = NULL;
+  bio->init = 0;
+  return 1;
+}
+
+int bio_string_free(BIO* bio) {
+  // The string is owned by the caller, so there's nothing to do here.
+  return bio != NULL;
+}
+
+BIO_METHOD bio_string_methods = {
+    // TODO(mattm): Should add some type number too? (bio.h uses 1-24)
+    BIO_TYPE_SOURCE_SINK,
+    "bio_string",
+    bio_string_write,
+    NULL, /* read */
+    bio_string_puts,
+    NULL, /* gets */
+    bio_string_ctrl,
+    bio_string_new,
+    bio_string_free,
+    NULL, /* callback_ctrl */
+};
+
+}  // namespace
+
+BIO* BIO_new_string(std::string* out) {
+  BIO* bio = BIO_new(&bio_string_methods);
+  if (!bio)
+    return bio;
+  bio->ptr = out;
+  bio->init = 1;
+  return bio;
+}
+
+}  // namespace crypto
diff --git a/crypto/openssl_bio_string.h b/crypto/openssl_bio_string.h
new file mode 100644
index 0000000..ca46c12
--- /dev/null
+++ b/crypto/openssl_bio_string.h
@@ -0,0 +1,29 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_OPENSSL_BIO_STRING_H_
+#define CRYPTO_OPENSSL_BIO_STRING_H_
+
+#include <string>
+
+#include "crypto/crypto_export.h"
+
+// From <openssl/bio.h>
+typedef struct bio_st BIO;
+
+namespace crypto {
+
+// Creates a new BIO that can be used with OpenSSL's various output functions,
+// and which will write all output directly into |out|. This is primarily
+// intended as a utility to reduce the amount of copying and separate
+// allocations when performing extensive string modifications or streaming
+// within OpenSSL.
+//
+// Note: |out| must remain valid for the duration of the BIO.
+CRYPTO_EXPORT BIO* BIO_new_string(std::string* out);
+
+}  // namespace crypto
+
+#endif  // CRYPTO_OPENSSL_BIO_STRING_H_
+
diff --git a/crypto/openssl_bio_string_unittest.cc b/crypto/openssl_bio_string_unittest.cc
new file mode 100644
index 0000000..9dfa0e7
--- /dev/null
+++ b/crypto/openssl_bio_string_unittest.cc
@@ -0,0 +1,63 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/openssl_bio_string.h"
+
+#include <openssl/bio.h>
+
+#include "crypto/scoped_openssl_types.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+TEST(OpenSSLBIOString, TestWrite) {
+  std::string s;
+  const std::string expected1("a one\nb 2\n");
+  const std::string expected2("c d e f");
+  const std::string expected3("g h i");
+  {
+    ScopedBIO bio(BIO_new_string(&s));
+    ASSERT_TRUE(bio.get());
+
+    EXPECT_EQ(static_cast<int>(expected1.size()),
+              BIO_printf(bio.get(), "a %s\nb %i\n", "one", 2));
+    EXPECT_EQ(expected1, s);
+
+    EXPECT_EQ(1, BIO_flush(bio.get()));
+    EXPECT_EQ(expected1, s);
+
+    EXPECT_EQ(static_cast<int>(expected2.size()),
+              BIO_write(bio.get(), expected2.data(), expected2.size()));
+    EXPECT_EQ(expected1 + expected2, s);
+
+    EXPECT_EQ(static_cast<int>(expected3.size()),
+              BIO_puts(bio.get(), expected3.c_str()));
+    EXPECT_EQ(expected1 + expected2 + expected3, s);
+  }
+  EXPECT_EQ(expected1 + expected2 + expected3, s);
+}
+
+TEST(OpenSSLBIOString, TestReset) {
+  std::string s;
+  const std::string expected1("a b c\n");
+  const std::string expected2("d e f g\n");
+  {
+    ScopedBIO bio(BIO_new_string(&s));
+    ASSERT_TRUE(bio.get());
+
+    EXPECT_EQ(static_cast<int>(expected1.size()),
+              BIO_write(bio.get(), expected1.data(), expected1.size()));
+    EXPECT_EQ(expected1, s);
+
+    EXPECT_EQ(1, BIO_reset(bio.get()));
+    EXPECT_EQ(std::string(), s);
+
+    EXPECT_EQ(static_cast<int>(expected2.size()),
+              BIO_write(bio.get(), expected2.data(), expected2.size()));
+    EXPECT_EQ(expected2, s);
+  }
+  EXPECT_EQ(expected2, s);
+}
+
+}  // namespace crypto
diff --git a/crypto/openssl_util.cc b/crypto/openssl_util.cc
new file mode 100644
index 0000000..f41b55a
--- /dev/null
+++ b/crypto/openssl_util.cc
@@ -0,0 +1,130 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/openssl_util.h"
+
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+#include <openssl/cpu.h>
+
+#include "base/logging.h"
+#include "base/memory/scoped_vector.h"
+#include "base/memory/singleton.h"
+#include "base/strings/string_piece.h"
+#include "base/synchronization/lock.h"
+#include "build/build_config.h"
+
+#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
+#include <cpu-features.h>
+#include "base/cpu.h"
+#endif
+
+namespace crypto {
+
+namespace {
+
+void CurrentThreadId(CRYPTO_THREADID* id) {
+  CRYPTO_THREADID_set_numeric(
+      id, static_cast<unsigned long>(base::PlatformThread::CurrentId()));
+}
+
+// Singleton for initializing and cleaning up the OpenSSL library.
+class OpenSSLInitSingleton {
+ public:
+  static OpenSSLInitSingleton* GetInstance() {
+    // We allow the SSL environment to leak for multiple reasons:
+    //   -  it is used from a non-joinable worker thread that is not stopped on
+    //      shutdown, hence may still be using OpenSSL library after the AtExit
+    //      runner has completed.
+    //   -  There are other OpenSSL related singletons (e.g. the client socket
+    //      context) who's cleanup depends on the global environment here, but
+    //      we can't control the order the AtExit handlers will run in so
+    //      allowing the global environment to leak at least ensures it is
+    //      available for those other singletons to reliably cleanup.
+    return Singleton<OpenSSLInitSingleton,
+               LeakySingletonTraits<OpenSSLInitSingleton> >::get();
+  }
+ private:
+  friend struct DefaultSingletonTraits<OpenSSLInitSingleton>;
+  OpenSSLInitSingleton() {
+    SSL_load_error_strings();
+    SSL_library_init();
+    int num_locks = CRYPTO_num_locks();
+    locks_.reserve(num_locks);
+    for (int i = 0; i < num_locks; ++i)
+      locks_.push_back(new base::Lock());
+    CRYPTO_set_locking_callback(LockingCallback);
+    CRYPTO_THREADID_set_callback(CurrentThreadId);
+
+#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
+    const bool has_neon =
+        (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
+    if (has_neon)
+      CRYPTO_set_NEON_capable(1);
+    // See https://code.google.com/p/chromium/issues/detail?id=341598
+    base::CPU cpu;
+    CRYPTO_set_NEON_functional(!cpu.has_broken_neon());
+#endif
+  }
+
+  ~OpenSSLInitSingleton() {
+    CRYPTO_set_locking_callback(NULL);
+    EVP_cleanup();
+    ERR_free_strings();
+  }
+
+  static void LockingCallback(int mode, int n, const char* file, int line) {
+    OpenSSLInitSingleton::GetInstance()->OnLockingCallback(mode, n, file, line);
+  }
+
+  void OnLockingCallback(int mode, int n, const char* file, int line) {
+    CHECK_LT(static_cast<size_t>(n), locks_.size());
+    if (mode & CRYPTO_LOCK)
+      locks_[n]->Acquire();
+    else
+      locks_[n]->Release();
+  }
+
+  // These locks are used and managed by OpenSSL via LockingCallback().
+  ScopedVector<base::Lock> locks_;
+
+  DISALLOW_COPY_AND_ASSIGN(OpenSSLInitSingleton);
+};
+
+// Callback routine for OpenSSL to print error messages. |str| is a
+// NULL-terminated string of length |len| containing diagnostic information
+// such as the library, function and reason for the error, the file and line
+// where the error originated, plus potentially any context-specific
+// information about the error. |context| contains a pointer to user-supplied
+// data, which is currently unused.
+// If this callback returns a value <= 0, OpenSSL will stop processing the
+// error queue and return, otherwise it will continue calling this function
+// until all errors have been removed from the queue.
+int OpenSSLErrorCallback(const char* str, size_t len, void* context) {
+  DVLOG(1) << "\t" << base::StringPiece(str, len);
+  return 1;
+}
+
+}  // namespace
+
+void EnsureOpenSSLInit() {
+  (void)OpenSSLInitSingleton::GetInstance();
+}
+
+void ClearOpenSSLERRStack(const tracked_objects::Location& location) {
+  if (logging::DEBUG_MODE && VLOG_IS_ON(1)) {
+    int error_num = ERR_peek_error();
+    if (error_num == 0)
+      return;
+
+    std::string message;
+    location.Write(true, true, &message);
+    DVLOG(1) << "OpenSSL ERR_get_error stack from " << message;
+    ERR_print_errors_cb(&OpenSSLErrorCallback, NULL);
+  } else {
+    ERR_clear_error();
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/openssl_util.h b/crypto/openssl_util.h
new file mode 100644
index 0000000..2743883
--- /dev/null
+++ b/crypto/openssl_util.h
@@ -0,0 +1,90 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_OPENSSL_UTIL_H_
+#define CRYPTO_OPENSSL_UTIL_H_
+
+#include "base/basictypes.h"
+#include "base/location.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Provides a buffer of at least MIN_SIZE bytes, for use when calling OpenSSL's
+// SHA256, HMAC, etc functions, adapting the buffer sizing rules to meet those
+// of the our base wrapper APIs.
+// This allows the library to write directly to the caller's buffer if it is of
+// sufficient size, but if not it will write to temporary |min_sized_buffer_|
+// of required size and then its content is automatically copied out on
+// destruction, with truncation as appropriate.
+template<int MIN_SIZE>
+class ScopedOpenSSLSafeSizeBuffer {
+ public:
+  ScopedOpenSSLSafeSizeBuffer(unsigned char* output, size_t output_len)
+      : output_(output),
+        output_len_(output_len) {
+  }
+
+  ~ScopedOpenSSLSafeSizeBuffer() {
+    if (output_len_ < MIN_SIZE) {
+      // Copy the temporary buffer out, truncating as needed.
+      memcpy(output_, min_sized_buffer_, output_len_);
+    }
+    // else... any writing already happened directly into |output_|.
+  }
+
+  unsigned char* safe_buffer() {
+    return output_len_ < MIN_SIZE ? min_sized_buffer_ : output_;
+  }
+
+ private:
+  // Pointer to the caller's data area and its associated size, where data
+  // written via safe_buffer() will [eventually] end up.
+  unsigned char* output_;
+  size_t output_len_;
+
+  // Temporary buffer writen into in the case where the caller's
+  // buffer is not of sufficient size.
+  unsigned char min_sized_buffer_[MIN_SIZE];
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedOpenSSLSafeSizeBuffer);
+};
+
+// Initialize OpenSSL if it isn't already initialized. This must be called
+// before any other OpenSSL functions though it is safe and cheap to call this
+// multiple times.
+// This function is thread-safe, and OpenSSL will only ever be initialized once.
+// OpenSSL will be properly shut down on program exit.
+void CRYPTO_EXPORT EnsureOpenSSLInit();
+
+// Drains the OpenSSL ERR_get_error stack. On a debug build the error codes
+// are send to VLOG(1), on a release build they are disregarded. In most
+// cases you should pass FROM_HERE as the |location|.
+void CRYPTO_EXPORT ClearOpenSSLERRStack(
+    const tracked_objects::Location& location);
+
+// Place an instance of this class on the call stack to automatically clear
+// the OpenSSL error stack on function exit.
+class OpenSSLErrStackTracer {
+ public:
+  // Pass FROM_HERE as |location|, to help track the source of OpenSSL error
+  // messages. Note any diagnostic emitted will be tagged with the location of
+  // the constructor call as it's not possible to trace a destructor's callsite.
+  explicit OpenSSLErrStackTracer(const tracked_objects::Location& location)
+      : location_(location) {
+    EnsureOpenSSLInit();
+  }
+  ~OpenSSLErrStackTracer() {
+    ClearOpenSSLERRStack(location_);
+  }
+
+ private:
+  const tracked_objects::Location location_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(OpenSSLErrStackTracer);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_OPENSSL_UTIL_H_
diff --git a/crypto/p224.cc b/crypto/p224.cc
new file mode 100644
index 0000000..5f76fbc
--- /dev/null
+++ b/crypto/p224.cc
@@ -0,0 +1,743 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This is an implementation of the P224 elliptic curve group. It's written to
+// be short and simple rather than fast, although it's still constant-time.
+//
+// See http://www.imperialviolet.org/2010/12/04/ecc.html ([1]) for background.
+
+#include "crypto/p224.h"
+
+#include <string.h>
+
+#include "base/sys_byteorder.h"
+
+namespace {
+
+using base::HostToNet32;
+using base::NetToHost32;
+
+// Field element functions.
+//
+// The field that we're dealing with is ℤ/pℤ where p = 2**224 - 2**96 + 1.
+//
+// Field elements are represented by a FieldElement, which is a typedef to an
+// array of 8 uint32's. The value of a FieldElement, a, is:
+//   a[0] + 2**28·a[1] + 2**56·a[1] + ... + 2**196·a[7]
+//
+// Using 28-bit limbs means that there's only 4 bits of headroom, which is less
+// than we would really like. But it has the useful feature that we hit 2**224
+// exactly, making the reflections during a reduce much nicer.
+
+using crypto::p224::FieldElement;
+
+// kP is the P224 prime.
+const FieldElement kP = {
+  1, 0, 0, 268431360,
+  268435455, 268435455, 268435455, 268435455,
+};
+
+void Contract(FieldElement* inout);
+
+// IsZero returns 0xffffffff if a == 0 mod p and 0 otherwise.
+uint32 IsZero(const FieldElement& a) {
+  FieldElement minimal;
+  memcpy(&minimal, &a, sizeof(minimal));
+  Contract(&minimal);
+
+  uint32 is_zero = 0, is_p = 0;
+  for (unsigned i = 0; i < 8; i++) {
+    is_zero |= minimal[i];
+    is_p |= minimal[i] - kP[i];
+  }
+
+  // If either is_zero or is_p is 0, then we should return 1.
+  is_zero |= is_zero >> 16;
+  is_zero |= is_zero >> 8;
+  is_zero |= is_zero >> 4;
+  is_zero |= is_zero >> 2;
+  is_zero |= is_zero >> 1;
+
+  is_p |= is_p >> 16;
+  is_p |= is_p >> 8;
+  is_p |= is_p >> 4;
+  is_p |= is_p >> 2;
+  is_p |= is_p >> 1;
+
+  // For is_zero and is_p, the LSB is 0 iff all the bits are zero.
+  is_zero &= is_p & 1;
+  is_zero = (~is_zero) << 31;
+  is_zero = static_cast<int32>(is_zero) >> 31;
+  return is_zero;
+}
+
+// Add computes *out = a+b
+//
+// a[i] + b[i] < 2**32
+void Add(FieldElement* out, const FieldElement& a, const FieldElement& b) {
+  for (int i = 0; i < 8; i++) {
+    (*out)[i] = a[i] + b[i];
+  }
+}
+
+static const uint32 kTwo31p3 = (1u<<31) + (1u<<3);
+static const uint32 kTwo31m3 = (1u<<31) - (1u<<3);
+static const uint32 kTwo31m15m3 = (1u<<31) - (1u<<15) - (1u<<3);
+// kZero31ModP is 0 mod p where bit 31 is set in all limbs so that we can
+// subtract smaller amounts without underflow. See the section "Subtraction" in
+// [1] for why.
+static const FieldElement kZero31ModP = {
+  kTwo31p3, kTwo31m3, kTwo31m3, kTwo31m15m3,
+  kTwo31m3, kTwo31m3, kTwo31m3, kTwo31m3
+};
+
+// Subtract computes *out = a-b
+//
+// a[i], b[i] < 2**30
+// out[i] < 2**32
+void Subtract(FieldElement* out, const FieldElement& a, const FieldElement& b) {
+  for (int i = 0; i < 8; i++) {
+    // See the section on "Subtraction" in [1] for details.
+    (*out)[i] = a[i] + kZero31ModP[i] - b[i];
+  }
+}
+
+static const uint64 kTwo63p35 = (1ull<<63) + (1ull<<35);
+static const uint64 kTwo63m35 = (1ull<<63) - (1ull<<35);
+static const uint64 kTwo63m35m19 = (1ull<<63) - (1ull<<35) - (1ull<<19);
+// kZero63ModP is 0 mod p where bit 63 is set in all limbs. See the section
+// "Subtraction" in [1] for why.
+static const uint64 kZero63ModP[8] = {
+  kTwo63p35, kTwo63m35, kTwo63m35, kTwo63m35,
+  kTwo63m35m19, kTwo63m35, kTwo63m35, kTwo63m35,
+};
+
+static const uint32 kBottom28Bits = 0xfffffff;
+
+// LargeFieldElement also represents an element of the field. The limbs are
+// still spaced 28-bits apart and in little-endian order. So the limbs are at
+// 0, 28, 56, ..., 392 bits, each 64-bits wide.
+typedef uint64 LargeFieldElement[15];
+
+// ReduceLarge converts a LargeFieldElement to a FieldElement.
+//
+// in[i] < 2**62
+void ReduceLarge(FieldElement* out, LargeFieldElement* inptr) {
+  LargeFieldElement& in(*inptr);
+
+  for (int i = 0; i < 8; i++) {
+    in[i] += kZero63ModP[i];
+  }
+
+  // Eliminate the coefficients at 2**224 and greater while maintaining the
+  // same value mod p.
+  for (int i = 14; i >= 8; i--) {
+    in[i-8] -= in[i];  // reflection off the "+1" term of p.
+    in[i-5] += (in[i] & 0xffff) << 12;  // part of the "-2**96" reflection.
+    in[i-4] += in[i] >> 16;  // the rest of the "-2**96" reflection.
+  }
+  in[8] = 0;
+  // in[0..8] < 2**64
+
+  // As the values become small enough, we start to store them in |out| and use
+  // 32-bit operations.
+  for (int i = 1; i < 8; i++) {
+    in[i+1] += in[i] >> 28;
+    (*out)[i] = static_cast<uint32>(in[i] & kBottom28Bits);
+  }
+  // Eliminate the term at 2*224 that we introduced while keeping the same
+  // value mod p.
+  in[0] -= in[8];  // reflection off the "+1" term of p.
+  (*out)[3] += static_cast<uint32>(in[8] & 0xffff) << 12;  // "-2**96" term
+  (*out)[4] += static_cast<uint32>(in[8] >> 16);  // rest of "-2**96" term
+  // in[0] < 2**64
+  // out[3] < 2**29
+  // out[4] < 2**29
+  // out[1,2,5..7] < 2**28
+
+  (*out)[0] = static_cast<uint32>(in[0] & kBottom28Bits);
+  (*out)[1] += static_cast<uint32>((in[0] >> 28) & kBottom28Bits);
+  (*out)[2] += static_cast<uint32>(in[0] >> 56);
+  // out[0] < 2**28
+  // out[1..4] < 2**29
+  // out[5..7] < 2**28
+}
+
+// Mul computes *out = a*b
+//
+// a[i] < 2**29, b[i] < 2**30 (or vice versa)
+// out[i] < 2**29
+void Mul(FieldElement* out, const FieldElement& a, const FieldElement& b) {
+  LargeFieldElement tmp;
+  memset(&tmp, 0, sizeof(tmp));
+
+  for (int i = 0; i < 8; i++) {
+    for (int j = 0; j < 8; j++) {
+      tmp[i+j] += static_cast<uint64>(a[i]) * static_cast<uint64>(b[j]);
+    }
+  }
+
+  ReduceLarge(out, &tmp);
+}
+
+// Square computes *out = a*a
+//
+// a[i] < 2**29
+// out[i] < 2**29
+void Square(FieldElement* out, const FieldElement& a) {
+  LargeFieldElement tmp;
+  memset(&tmp, 0, sizeof(tmp));
+
+  for (int i = 0; i < 8; i++) {
+    for (int j = 0; j <= i; j++) {
+      uint64 r = static_cast<uint64>(a[i]) * static_cast<uint64>(a[j]);
+      if (i == j) {
+        tmp[i+j] += r;
+      } else {
+        tmp[i+j] += r << 1;
+      }
+    }
+  }
+
+  ReduceLarge(out, &tmp);
+}
+
+// Reduce reduces the coefficients of in_out to smaller bounds.
+//
+// On entry: a[i] < 2**31 + 2**30
+// On exit: a[i] < 2**29
+void Reduce(FieldElement* in_out) {
+  FieldElement& a = *in_out;
+
+  for (int i = 0; i < 7; i++) {
+    a[i+1] += a[i] >> 28;
+    a[i] &= kBottom28Bits;
+  }
+  uint32 top = a[7] >> 28;
+  a[7] &= kBottom28Bits;
+
+  // top < 2**4
+  // Constant-time: mask = (top != 0) ? 0xffffffff : 0
+  uint32 mask = top;
+  mask |= mask >> 2;
+  mask |= mask >> 1;
+  mask <<= 31;
+  mask = static_cast<uint32>(static_cast<int32>(mask) >> 31);
+
+  // Eliminate top while maintaining the same value mod p.
+  a[0] -= top;
+  a[3] += top << 12;
+
+  // We may have just made a[0] negative but, if we did, then we must
+  // have added something to a[3], thus it's > 2**12. Therefore we can
+  // carry down to a[0].
+  a[3] -= 1 & mask;
+  a[2] += mask & ((1<<28) - 1);
+  a[1] += mask & ((1<<28) - 1);
+  a[0] += mask & (1<<28);
+}
+
+// Invert calcuates *out = in**-1 by computing in**(2**224 - 2**96 - 1), i.e.
+// Fermat's little theorem.
+void Invert(FieldElement* out, const FieldElement& in) {
+  FieldElement f1, f2, f3, f4;
+
+  Square(&f1, in);                        // 2
+  Mul(&f1, f1, in);                       // 2**2 - 1
+  Square(&f1, f1);                        // 2**3 - 2
+  Mul(&f1, f1, in);                       // 2**3 - 1
+  Square(&f2, f1);                        // 2**4 - 2
+  Square(&f2, f2);                        // 2**5 - 4
+  Square(&f2, f2);                        // 2**6 - 8
+  Mul(&f1, f1, f2);                       // 2**6 - 1
+  Square(&f2, f1);                        // 2**7 - 2
+  for (int i = 0; i < 5; i++) {           // 2**12 - 2**6
+    Square(&f2, f2);
+  }
+  Mul(&f2, f2, f1);                       // 2**12 - 1
+  Square(&f3, f2);                        // 2**13 - 2
+  for (int i = 0; i < 11; i++) {          // 2**24 - 2**12
+    Square(&f3, f3);
+  }
+  Mul(&f2, f3, f2);                       // 2**24 - 1
+  Square(&f3, f2);                        // 2**25 - 2
+  for (int i = 0; i < 23; i++) {          // 2**48 - 2**24
+    Square(&f3, f3);
+  }
+  Mul(&f3, f3, f2);                       // 2**48 - 1
+  Square(&f4, f3);                        // 2**49 - 2
+  for (int i = 0; i < 47; i++) {          // 2**96 - 2**48
+    Square(&f4, f4);
+  }
+  Mul(&f3, f3, f4);                       // 2**96 - 1
+  Square(&f4, f3);                        // 2**97 - 2
+  for (int i = 0; i < 23; i++) {          // 2**120 - 2**24
+    Square(&f4, f4);
+  }
+  Mul(&f2, f4, f2);                       // 2**120 - 1
+  for (int i = 0; i < 6; i++) {           // 2**126 - 2**6
+    Square(&f2, f2);
+  }
+  Mul(&f1, f1, f2);                       // 2**126 - 1
+  Square(&f1, f1);                        // 2**127 - 2
+  Mul(&f1, f1, in);                       // 2**127 - 1
+  for (int i = 0; i < 97; i++) {          // 2**224 - 2**97
+    Square(&f1, f1);
+  }
+  Mul(out, f1, f3);                       // 2**224 - 2**96 - 1
+}
+
+// Contract converts a FieldElement to its minimal, distinguished form.
+//
+// On entry, in[i] < 2**29
+// On exit, in[i] < 2**28
+void Contract(FieldElement* inout) {
+  FieldElement& out = *inout;
+
+  // Reduce the coefficients to < 2**28.
+  for (int i = 0; i < 7; i++) {
+    out[i+1] += out[i] >> 28;
+    out[i] &= kBottom28Bits;
+  }
+  uint32 top = out[7] >> 28;
+  out[7] &= kBottom28Bits;
+
+  // Eliminate top while maintaining the same value mod p.
+  out[0] -= top;
+  out[3] += top << 12;
+
+  // We may just have made out[0] negative. So we carry down. If we made
+  // out[0] negative then we know that out[3] is sufficiently positive
+  // because we just added to it.
+  for (int i = 0; i < 3; i++) {
+    uint32 mask = static_cast<uint32>(static_cast<int32>(out[i]) >> 31);
+    out[i] += (1 << 28) & mask;
+    out[i+1] -= 1 & mask;
+  }
+
+  // We might have pushed out[3] over 2**28 so we perform another, partial
+  // carry chain.
+  for (int i = 3; i < 7; i++) {
+    out[i+1] += out[i] >> 28;
+    out[i] &= kBottom28Bits;
+  }
+  top = out[7] >> 28;
+  out[7] &= kBottom28Bits;
+
+  // Eliminate top while maintaining the same value mod p.
+  out[0] -= top;
+  out[3] += top << 12;
+
+  // There are two cases to consider for out[3]:
+  //   1) The first time that we eliminated top, we didn't push out[3] over
+  //      2**28. In this case, the partial carry chain didn't change any values
+  //      and top is zero.
+  //   2) We did push out[3] over 2**28 the first time that we eliminated top.
+  //      The first value of top was in [0..16), therefore, prior to eliminating
+  //      the first top, 0xfff1000 <= out[3] <= 0xfffffff. Therefore, after
+  //      overflowing and being reduced by the second carry chain, out[3] <=
+  //      0xf000. Thus it cannot have overflowed when we eliminated top for the
+  //      second time.
+
+  // Again, we may just have made out[0] negative, so do the same carry down.
+  // As before, if we made out[0] negative then we know that out[3] is
+  // sufficiently positive.
+  for (int i = 0; i < 3; i++) {
+    uint32 mask = static_cast<uint32>(static_cast<int32>(out[i]) >> 31);
+    out[i] += (1 << 28) & mask;
+    out[i+1] -= 1 & mask;
+  }
+
+  // The value is < 2**224, but maybe greater than p. In order to reduce to a
+  // unique, minimal value we see if the value is >= p and, if so, subtract p.
+
+  // First we build a mask from the top four limbs, which must all be
+  // equal to bottom28Bits if the whole value is >= p. If top_4_all_ones
+  // ends up with any zero bits in the bottom 28 bits, then this wasn't
+  // true.
+  uint32 top_4_all_ones = 0xffffffffu;
+  for (int i = 4; i < 8; i++) {
+    top_4_all_ones &= out[i];
+  }
+  top_4_all_ones |= 0xf0000000;
+  // Now we replicate any zero bits to all the bits in top_4_all_ones.
+  top_4_all_ones &= top_4_all_ones >> 16;
+  top_4_all_ones &= top_4_all_ones >> 8;
+  top_4_all_ones &= top_4_all_ones >> 4;
+  top_4_all_ones &= top_4_all_ones >> 2;
+  top_4_all_ones &= top_4_all_ones >> 1;
+  top_4_all_ones =
+      static_cast<uint32>(static_cast<int32>(top_4_all_ones << 31) >> 31);
+
+  // Now we test whether the bottom three limbs are non-zero.
+  uint32 bottom_3_non_zero = out[0] | out[1] | out[2];
+  bottom_3_non_zero |= bottom_3_non_zero >> 16;
+  bottom_3_non_zero |= bottom_3_non_zero >> 8;
+  bottom_3_non_zero |= bottom_3_non_zero >> 4;
+  bottom_3_non_zero |= bottom_3_non_zero >> 2;
+  bottom_3_non_zero |= bottom_3_non_zero >> 1;
+  bottom_3_non_zero =
+      static_cast<uint32>(static_cast<int32>(bottom_3_non_zero) >> 31);
+
+  // Everything depends on the value of out[3].
+  //    If it's > 0xffff000 and top_4_all_ones != 0 then the whole value is >= p
+  //    If it's = 0xffff000 and top_4_all_ones != 0 and bottom_3_non_zero != 0,
+  //      then the whole value is >= p
+  //    If it's < 0xffff000, then the whole value is < p
+  uint32 n = out[3] - 0xffff000;
+  uint32 out_3_equal = n;
+  out_3_equal |= out_3_equal >> 16;
+  out_3_equal |= out_3_equal >> 8;
+  out_3_equal |= out_3_equal >> 4;
+  out_3_equal |= out_3_equal >> 2;
+  out_3_equal |= out_3_equal >> 1;
+  out_3_equal =
+      ~static_cast<uint32>(static_cast<int32>(out_3_equal << 31) >> 31);
+
+  // If out[3] > 0xffff000 then n's MSB will be zero.
+  uint32 out_3_gt = ~static_cast<uint32>(static_cast<int32>(n << 31) >> 31);
+
+  uint32 mask = top_4_all_ones & ((out_3_equal & bottom_3_non_zero) | out_3_gt);
+  out[0] -= 1 & mask;
+  out[3] -= 0xffff000 & mask;
+  out[4] -= 0xfffffff & mask;
+  out[5] -= 0xfffffff & mask;
+  out[6] -= 0xfffffff & mask;
+  out[7] -= 0xfffffff & mask;
+}
+
+
+// Group element functions.
+//
+// These functions deal with group elements. The group is an elliptic curve
+// group with a = -3 defined in FIPS 186-3, section D.2.2.
+
+using crypto::p224::Point;
+
+// kB is parameter of the elliptic curve.
+const FieldElement kB = {
+  55967668, 11768882, 265861671, 185302395,
+  39211076, 180311059, 84673715, 188764328,
+};
+
+void CopyConditional(Point* out, const Point& a, uint32 mask);
+void DoubleJacobian(Point* out, const Point& a);
+
+// AddJacobian computes *out = a+b where a != b.
+void AddJacobian(Point *out,
+                 const Point& a,
+                 const Point& b) {
+  // See http://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#addition-add-2007-bl
+  FieldElement z1z1, z2z2, u1, u2, s1, s2, h, i, j, r, v;
+
+  uint32 z1_is_zero = IsZero(a.z);
+  uint32 z2_is_zero = IsZero(b.z);
+
+  // Z1Z1 = Z1²
+  Square(&z1z1, a.z);
+
+  // Z2Z2 = Z2²
+  Square(&z2z2, b.z);
+
+  // U1 = X1*Z2Z2
+  Mul(&u1, a.x, z2z2);
+
+  // U2 = X2*Z1Z1
+  Mul(&u2, b.x, z1z1);
+
+  // S1 = Y1*Z2*Z2Z2
+  Mul(&s1, b.z, z2z2);
+  Mul(&s1, a.y, s1);
+
+  // S2 = Y2*Z1*Z1Z1
+  Mul(&s2, a.z, z1z1);
+  Mul(&s2, b.y, s2);
+
+  // H = U2-U1
+  Subtract(&h, u2, u1);
+  Reduce(&h);
+  uint32 x_equal = IsZero(h);
+
+  // I = (2*H)²
+  for (int j = 0; j < 8; j++) {
+    i[j] = h[j] << 1;
+  }
+  Reduce(&i);
+  Square(&i, i);
+
+  // J = H*I
+  Mul(&j, h, i);
+  // r = 2*(S2-S1)
+  Subtract(&r, s2, s1);
+  Reduce(&r);
+  uint32 y_equal = IsZero(r);
+
+  if (x_equal && y_equal && !z1_is_zero && !z2_is_zero) {
+    // The two input points are the same therefore we must use the dedicated
+    // doubling function as the slope of the line is undefined.
+    DoubleJacobian(out, a);
+    return;
+  }
+
+  for (int i = 0; i < 8; i++) {
+    r[i] <<= 1;
+  }
+  Reduce(&r);
+
+  // V = U1*I
+  Mul(&v, u1, i);
+
+  // Z3 = ((Z1+Z2)²-Z1Z1-Z2Z2)*H
+  Add(&z1z1, z1z1, z2z2);
+  Add(&z2z2, a.z, b.z);
+  Reduce(&z2z2);
+  Square(&z2z2, z2z2);
+  Subtract(&out->z, z2z2, z1z1);
+  Reduce(&out->z);
+  Mul(&out->z, out->z, h);
+
+  // X3 = r²-J-2*V
+  for (int i = 0; i < 8; i++) {
+    z1z1[i] = v[i] << 1;
+  }
+  Add(&z1z1, j, z1z1);
+  Reduce(&z1z1);
+  Square(&out->x, r);
+  Subtract(&out->x, out->x, z1z1);
+  Reduce(&out->x);
+
+  // Y3 = r*(V-X3)-2*S1*J
+  for (int i = 0; i < 8; i++) {
+    s1[i] <<= 1;
+  }
+  Mul(&s1, s1, j);
+  Subtract(&z1z1, v, out->x);
+  Reduce(&z1z1);
+  Mul(&z1z1, z1z1, r);
+  Subtract(&out->y, z1z1, s1);
+  Reduce(&out->y);
+
+  CopyConditional(out, a, z2_is_zero);
+  CopyConditional(out, b, z1_is_zero);
+}
+
+// DoubleJacobian computes *out = a+a.
+void DoubleJacobian(Point* out, const Point& a) {
+  // See http://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b
+  FieldElement delta, gamma, beta, alpha, t;
+
+  Square(&delta, a.z);
+  Square(&gamma, a.y);
+  Mul(&beta, a.x, gamma);
+
+  // alpha = 3*(X1-delta)*(X1+delta)
+  Add(&t, a.x, delta);
+  for (int i = 0; i < 8; i++) {
+          t[i] += t[i] << 1;
+  }
+  Reduce(&t);
+  Subtract(&alpha, a.x, delta);
+  Reduce(&alpha);
+  Mul(&alpha, alpha, t);
+
+  // Z3 = (Y1+Z1)²-gamma-delta
+  Add(&out->z, a.y, a.z);
+  Reduce(&out->z);
+  Square(&out->z, out->z);
+  Subtract(&out->z, out->z, gamma);
+  Reduce(&out->z);
+  Subtract(&out->z, out->z, delta);
+  Reduce(&out->z);
+
+  // X3 = alpha²-8*beta
+  for (int i = 0; i < 8; i++) {
+          delta[i] = beta[i] << 3;
+  }
+  Reduce(&delta);
+  Square(&out->x, alpha);
+  Subtract(&out->x, out->x, delta);
+  Reduce(&out->x);
+
+  // Y3 = alpha*(4*beta-X3)-8*gamma²
+  for (int i = 0; i < 8; i++) {
+          beta[i] <<= 2;
+  }
+  Reduce(&beta);
+  Subtract(&beta, beta, out->x);
+  Reduce(&beta);
+  Square(&gamma, gamma);
+  for (int i = 0; i < 8; i++) {
+          gamma[i] <<= 3;
+  }
+  Reduce(&gamma);
+  Mul(&out->y, alpha, beta);
+  Subtract(&out->y, out->y, gamma);
+  Reduce(&out->y);
+}
+
+// CopyConditional sets *out=a if mask is 0xffffffff. mask must be either 0 of
+// 0xffffffff.
+void CopyConditional(Point* out,
+                     const Point& a,
+                     uint32 mask) {
+  for (int i = 0; i < 8; i++) {
+    out->x[i] ^= mask & (a.x[i] ^ out->x[i]);
+    out->y[i] ^= mask & (a.y[i] ^ out->y[i]);
+    out->z[i] ^= mask & (a.z[i] ^ out->z[i]);
+  }
+}
+
+// ScalarMult calculates *out = a*scalar where scalar is a big-endian number of
+// length scalar_len and != 0.
+void ScalarMult(Point* out, const Point& a,
+                const uint8* scalar, size_t scalar_len) {
+  memset(out, 0, sizeof(*out));
+  Point tmp;
+
+  for (size_t i = 0; i < scalar_len; i++) {
+    for (unsigned int bit_num = 0; bit_num < 8; bit_num++) {
+      DoubleJacobian(out, *out);
+      uint32 bit = static_cast<uint32>(static_cast<int32>(
+          (((scalar[i] >> (7 - bit_num)) & 1) << 31) >> 31));
+      AddJacobian(&tmp, a, *out);
+      CopyConditional(out, tmp, bit);
+    }
+  }
+}
+
+// Get224Bits reads 7 words from in and scatters their contents in
+// little-endian form into 8 words at out, 28 bits per output word.
+void Get224Bits(uint32* out, const uint32* in) {
+  out[0] = NetToHost32(in[6]) & kBottom28Bits;
+  out[1] = ((NetToHost32(in[5]) << 4) |
+            (NetToHost32(in[6]) >> 28)) & kBottom28Bits;
+  out[2] = ((NetToHost32(in[4]) << 8) |
+            (NetToHost32(in[5]) >> 24)) & kBottom28Bits;
+  out[3] = ((NetToHost32(in[3]) << 12) |
+            (NetToHost32(in[4]) >> 20)) & kBottom28Bits;
+  out[4] = ((NetToHost32(in[2]) << 16) |
+            (NetToHost32(in[3]) >> 16)) & kBottom28Bits;
+  out[5] = ((NetToHost32(in[1]) << 20) |
+            (NetToHost32(in[2]) >> 12)) & kBottom28Bits;
+  out[6] = ((NetToHost32(in[0]) << 24) |
+            (NetToHost32(in[1]) >> 8)) & kBottom28Bits;
+  out[7] = (NetToHost32(in[0]) >> 4) & kBottom28Bits;
+}
+
+// Put224Bits performs the inverse operation to Get224Bits: taking 28 bits from
+// each of 8 input words and writing them in big-endian order to 7 words at
+// out.
+void Put224Bits(uint32* out, const uint32* in) {
+  out[6] = HostToNet32((in[0] >> 0) | (in[1] << 28));
+  out[5] = HostToNet32((in[1] >> 4) | (in[2] << 24));
+  out[4] = HostToNet32((in[2] >> 8) | (in[3] << 20));
+  out[3] = HostToNet32((in[3] >> 12) | (in[4] << 16));
+  out[2] = HostToNet32((in[4] >> 16) | (in[5] << 12));
+  out[1] = HostToNet32((in[5] >> 20) | (in[6] << 8));
+  out[0] = HostToNet32((in[6] >> 24) | (in[7] << 4));
+}
+
+}  // anonymous namespace
+
+namespace crypto {
+
+namespace p224 {
+
+bool Point::SetFromString(const base::StringPiece& in) {
+  if (in.size() != 2*28)
+    return false;
+  const uint32* inwords = reinterpret_cast<const uint32*>(in.data());
+  Get224Bits(x, inwords);
+  Get224Bits(y, inwords + 7);
+  memset(&z, 0, sizeof(z));
+  z[0] = 1;
+
+  // Check that the point is on the curve, i.e. that y² = x³ - 3x + b.
+  FieldElement lhs;
+  Square(&lhs, y);
+  Contract(&lhs);
+
+  FieldElement rhs;
+  Square(&rhs, x);
+  Mul(&rhs, x, rhs);
+
+  FieldElement three_x;
+  for (int i = 0; i < 8; i++) {
+    three_x[i] = x[i] * 3;
+  }
+  Reduce(&three_x);
+  Subtract(&rhs, rhs, three_x);
+  Reduce(&rhs);
+
+  ::Add(&rhs, rhs, kB);
+  Contract(&rhs);
+  return memcmp(&lhs, &rhs, sizeof(lhs)) == 0;
+}
+
+std::string Point::ToString() const {
+  FieldElement zinv, zinv_sq, x, y;
+
+  // If this is the point at infinity we return a string of all zeros.
+  if (IsZero(this->z)) {
+    static const char zeros[56] = {0};
+    return std::string(zeros, sizeof(zeros));
+  }
+
+  Invert(&zinv, this->z);
+  Square(&zinv_sq, zinv);
+  Mul(&x, this->x, zinv_sq);
+  Mul(&zinv_sq, zinv_sq, zinv);
+  Mul(&y, this->y, zinv_sq);
+
+  Contract(&x);
+  Contract(&y);
+
+  uint32 outwords[14];
+  Put224Bits(outwords, x);
+  Put224Bits(outwords + 7, y);
+  return std::string(reinterpret_cast<const char*>(outwords), sizeof(outwords));
+}
+
+void ScalarMult(const Point& in, const uint8* scalar, Point* out) {
+  ::ScalarMult(out, in, scalar, 28);
+}
+
+// kBasePoint is the base point (generator) of the elliptic curve group.
+static const Point kBasePoint = {
+  {22813985, 52956513, 34677300, 203240812,
+   12143107, 133374265, 225162431, 191946955},
+  {83918388, 223877528, 122119236, 123340192,
+   266784067, 263504429, 146143011, 198407736},
+  {1, 0, 0, 0, 0, 0, 0, 0},
+};
+
+void ScalarBaseMult(const uint8* scalar, Point* out) {
+  ::ScalarMult(out, kBasePoint, scalar, 28);
+}
+
+void Add(const Point& a, const Point& b, Point* out) {
+  AddJacobian(out, a, b);
+}
+
+void Negate(const Point& in, Point* out) {
+  // Guide to elliptic curve cryptography, page 89 suggests that (X : X+Y : Z)
+  // is the negative in Jacobian coordinates, but it doesn't actually appear to
+  // be true in testing so this performs the negation in affine coordinates.
+  FieldElement zinv, zinv_sq, y;
+  Invert(&zinv, in.z);
+  Square(&zinv_sq, zinv);
+  Mul(&out->x, in.x, zinv_sq);
+  Mul(&zinv_sq, zinv_sq, zinv);
+  Mul(&y, in.y, zinv_sq);
+
+  Subtract(&out->y, kP, y);
+  Reduce(&out->y);
+
+  memset(&out->z, 0, sizeof(out->z));
+  out->z[0] = 1;
+}
+
+}  // namespace p224
+
+}  // namespace crypto
diff --git a/crypto/p224.h b/crypto/p224.h
new file mode 100644
index 0000000..2efecfa
--- /dev/null
+++ b/crypto/p224.h
@@ -0,0 +1,60 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_P224_H_
+#define CRYPTO_P224_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/strings/string_piece.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// P224 implements an elliptic curve group, commonly known as P224 and defined
+// in FIPS 186-3, section D.2.2.
+namespace p224 {
+
+// An element of the field (ℤ/pℤ) is represented with 8, 28-bit limbs in
+// little endian order.
+typedef uint32 FieldElement[8];
+
+struct CRYPTO_EXPORT Point {
+  // SetFromString the value of the point from the 56 byte, external
+  // representation. The external point representation is an (x, y) pair of a
+  // point on the curve. Each field element is represented as a big-endian
+  // number < p.
+  bool SetFromString(const base::StringPiece& in);
+
+  // ToString returns an external representation of the Point.
+  std::string ToString() const;
+
+  // An Point is represented in Jacobian form (x/z², y/z³).
+  FieldElement x, y, z;
+};
+
+// kScalarBytes is the number of bytes needed to represent an element of the
+// P224 field.
+static const size_t kScalarBytes = 28;
+
+// ScalarMult computes *out = in*scalar where scalar is a 28-byte, big-endian
+// number.
+void CRYPTO_EXPORT ScalarMult(const Point& in, const uint8* scalar, Point* out);
+
+// ScalarBaseMult computes *out = g*scalar where g is the base point of the
+// curve and scalar is a 28-byte, big-endian number.
+void CRYPTO_EXPORT ScalarBaseMult(const uint8* scalar, Point* out);
+
+// Add computes *out = a+b.
+void CRYPTO_EXPORT Add(const Point& a, const Point& b, Point* out);
+
+// Negate calculates out = -a;
+void CRYPTO_EXPORT Negate(const Point& a, Point* out);
+
+}  // namespace p224
+
+}  // namespace crypto
+
+#endif  // CRYPTO_P224_H_
diff --git a/crypto/p224_spake.cc b/crypto/p224_spake.cc
new file mode 100644
index 0000000..31109a4
--- /dev/null
+++ b/crypto/p224_spake.cc
@@ -0,0 +1,248 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This code implements SPAKE2, a variant of EKE:
+//  http://www.di.ens.fr/~pointche/pub.php?reference=AbPo04
+
+#include <crypto/p224_spake.h>
+
+#include <base/logging.h>
+#include <crypto/p224.h>
+#include <crypto/random.h>
+#include <crypto/secure_util.h>
+
+namespace {
+
+// The following two points (M and N in the protocol) are verifiable random
+// points on the curve and can be generated with the following code:
+
+// #include <stdint.h>
+// #include <stdio.h>
+// #include <string.h>
+//
+// #include <openssl/ec.h>
+// #include <openssl/obj_mac.h>
+// #include <openssl/sha.h>
+//
+// static const char kSeed1[] = "P224 point generation seed (M)";
+// static const char kSeed2[] = "P224 point generation seed (N)";
+//
+// void find_seed(const char* seed) {
+//   SHA256_CTX sha256;
+//   uint8_t digest[SHA256_DIGEST_LENGTH];
+//
+//   SHA256_Init(&sha256);
+//   SHA256_Update(&sha256, seed, strlen(seed));
+//   SHA256_Final(digest, &sha256);
+//
+//   BIGNUM x, y;
+//   EC_GROUP* p224 = EC_GROUP_new_by_curve_name(NID_secp224r1);
+//   EC_POINT* p = EC_POINT_new(p224);
+//
+//   for (unsigned i = 0;; i++) {
+//     BN_init(&x);
+//     BN_bin2bn(digest, 28, &x);
+//
+//     if (EC_POINT_set_compressed_coordinates_GFp(
+//             p224, p, &x, digest[28] & 1, NULL)) {
+//       BN_init(&y);
+//       EC_POINT_get_affine_coordinates_GFp(p224, p, &x, &y, NULL);
+//       char* x_str = BN_bn2hex(&x);
+//       char* y_str = BN_bn2hex(&y);
+//       printf("Found after %u iterations:\n%s\n%s\n", i, x_str, y_str);
+//       OPENSSL_free(x_str);
+//       OPENSSL_free(y_str);
+//       BN_free(&x);
+//       BN_free(&y);
+//       break;
+//     }
+//
+//     SHA256_Init(&sha256);
+//     SHA256_Update(&sha256, digest, sizeof(digest));
+//     SHA256_Final(digest, &sha256);
+//
+//     BN_free(&x);
+//   }
+//
+//   EC_POINT_free(p);
+//   EC_GROUP_free(p224);
+// }
+//
+// int main() {
+//   find_seed(kSeed1);
+//   find_seed(kSeed2);
+//   return 0;
+// }
+
+const crypto::p224::Point kM = {
+  {174237515, 77186811, 235213682, 33849492,
+   33188520, 48266885, 177021753, 81038478},
+  {104523827, 245682244, 266509668, 236196369,
+   28372046, 145351378, 198520366, 113345994},
+  {1, 0, 0, 0, 0, 0, 0},
+};
+
+const crypto::p224::Point kN = {
+  {136176322, 263523628, 251628795, 229292285,
+   5034302, 185981975, 171998428, 11653062},
+  {197567436, 51226044, 60372156, 175772188,
+   42075930, 8083165, 160827401, 65097570},
+  {1, 0, 0, 0, 0, 0, 0},
+};
+
+}  // anonymous namespace
+
+namespace crypto {
+
+P224EncryptedKeyExchange::P224EncryptedKeyExchange(
+    PeerType peer_type, const base::StringPiece& password)
+    : state_(kStateInitial),
+      is_server_(peer_type == kPeerTypeServer) {
+  memset(&x_, 0, sizeof(x_));
+  memset(&expected_authenticator_, 0, sizeof(expected_authenticator_));
+
+  // x_ is a random scalar.
+  RandBytes(x_, sizeof(x_));
+
+  // X = g**x_
+  p224::Point X;
+  p224::ScalarBaseMult(x_, &X);
+
+  // Calculate |password| hash to get SPAKE password value.
+  SHA256HashString(std::string(password.data(), password.length()),
+                   pw_, sizeof(pw_));
+
+  // The client masks the Diffie-Hellman value, X, by adding M**pw and the
+  // server uses N**pw.
+  p224::Point MNpw;
+  p224::ScalarMult(is_server_ ? kN : kM, pw_, &MNpw);
+
+  // X* = X + (N|M)**pw
+  p224::Point Xstar;
+  p224::Add(X, MNpw, &Xstar);
+
+  next_message_ = Xstar.ToString();
+}
+
+const std::string& P224EncryptedKeyExchange::GetMessage() {
+  if (state_ == kStateInitial) {
+    state_ = kStateRecvDH;
+    return next_message_;
+  } else if (state_ == kStateSendHash) {
+    state_ = kStateRecvHash;
+    return next_message_;
+  }
+
+  LOG(FATAL) << "P224EncryptedKeyExchange::GetMessage called in"
+                " bad state " << state_;
+  next_message_ = "";
+  return next_message_;
+}
+
+P224EncryptedKeyExchange::Result P224EncryptedKeyExchange::ProcessMessage(
+    const base::StringPiece& message) {
+  if (state_ == kStateRecvHash) {
+    // This is the final state of the protocol: we are reading the peer's
+    // authentication hash and checking that it matches the one that we expect.
+    if (message.size() != sizeof(expected_authenticator_)) {
+      error_ = "peer's hash had an incorrect size";
+      return kResultFailed;
+    }
+    if (!SecureMemEqual(message.data(), expected_authenticator_,
+                        message.size())) {
+      error_ = "peer's hash had incorrect value";
+      return kResultFailed;
+    }
+    state_ = kStateDone;
+    return kResultSuccess;
+  }
+
+  if (state_ != kStateRecvDH) {
+    LOG(FATAL) << "P224EncryptedKeyExchange::ProcessMessage called in"
+                  " bad state " << state_;
+    error_ = "internal error";
+    return kResultFailed;
+  }
+
+  // Y* is the other party's masked, Diffie-Hellman value.
+  p224::Point Ystar;
+  if (!Ystar.SetFromString(message)) {
+    error_ = "failed to parse peer's masked Diffie-Hellman value";
+    return kResultFailed;
+  }
+
+  // We calculate the mask value: (N|M)**pw
+  p224::Point MNpw, minus_MNpw, Y, k;
+  p224::ScalarMult(is_server_ ? kM : kN, pw_, &MNpw);
+  p224::Negate(MNpw, &minus_MNpw);
+
+  // Y = Y* - (N|M)**pw
+  p224::Add(Ystar, minus_MNpw, &Y);
+
+  // K = Y**x_
+  p224::ScalarMult(Y, x_, &k);
+
+  // If everything worked out, then K is the same for both parties.
+  key_ = k.ToString();
+
+  std::string client_masked_dh, server_masked_dh;
+  if (is_server_) {
+    client_masked_dh = message.as_string();
+    server_masked_dh = next_message_;
+  } else {
+    client_masked_dh = next_message_;
+    server_masked_dh = message.as_string();
+  }
+
+  // Now we calculate the hashes that each side will use to prove to the other
+  // that they derived the correct value for K.
+  uint8 client_hash[kSHA256Length], server_hash[kSHA256Length];
+  CalculateHash(kPeerTypeClient, client_masked_dh, server_masked_dh, key_,
+                client_hash);
+  CalculateHash(kPeerTypeServer, client_masked_dh, server_masked_dh, key_,
+                server_hash);
+
+  const uint8* my_hash = is_server_ ? server_hash : client_hash;
+  const uint8* their_hash = is_server_ ? client_hash : server_hash;
+
+  next_message_ =
+      std::string(reinterpret_cast<const char*>(my_hash), kSHA256Length);
+  memcpy(expected_authenticator_, their_hash, kSHA256Length);
+  state_ = kStateSendHash;
+  return kResultPending;
+}
+
+void P224EncryptedKeyExchange::CalculateHash(
+    PeerType peer_type,
+    const std::string& client_masked_dh,
+    const std::string& server_masked_dh,
+    const std::string& k,
+    uint8* out_digest) {
+  std::string hash_contents;
+
+  if (peer_type == kPeerTypeServer) {
+    hash_contents = "server";
+  } else {
+    hash_contents = "client";
+  }
+
+  hash_contents += client_masked_dh;
+  hash_contents += server_masked_dh;
+  hash_contents +=
+      std::string(reinterpret_cast<const char *>(pw_), sizeof(pw_));
+  hash_contents += k;
+
+  SHA256HashString(hash_contents, out_digest, kSHA256Length);
+}
+
+const std::string& P224EncryptedKeyExchange::error() const {
+  return error_;
+}
+
+const std::string& P224EncryptedKeyExchange::GetKey() {
+  DCHECK_EQ(state_, kStateDone);
+  return key_;
+}
+
+}  // namespace crypto
diff --git a/crypto/p224_spake.h b/crypto/p224_spake.h
new file mode 100644
index 0000000..6905ef2
--- /dev/null
+++ b/crypto/p224_spake.h
@@ -0,0 +1,114 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_P224_SPAKE_H_
+#define CRYPTO_P224_SPAKE_H_
+
+#include <base/strings/string_piece.h>
+#include <crypto/p224.h>
+#include <crypto/sha2.h>
+
+namespace crypto {
+
+// P224EncryptedKeyExchange implements SPAKE2, a variant of Encrypted
+// Key Exchange. It allows two parties that have a secret common
+// password to establish a common secure key by exchanging messages
+// over unsecure channel without disclosing the password.
+//
+// The password can be low entropy as authenticating with an attacker only
+// gives the attacker a one-shot password oracle. No other information about
+// the password is leaked. (However, you must be sure to limit the number of
+// permitted authentication attempts otherwise they get many one-shot oracles.)
+//
+// The protocol requires several RTTs (actually two, but you shouldn't assume
+// that.) To use the object, call GetMessage() and pass that message to the
+// peer. Get a message from the peer and feed it into ProcessMessage. Then
+// examine the return value of ProcessMessage:
+//   kResultPending: Another round is required. Call GetMessage and repeat.
+//   kResultFailed: The authentication has failed. You can get a human readable
+//       error message by calling error().
+//   kResultSuccess: The authentication was successful.
+//
+// In each exchange, each peer always sends a message.
+class CRYPTO_EXPORT P224EncryptedKeyExchange {
+ public:
+  enum Result {
+    kResultPending,
+    kResultFailed,
+    kResultSuccess,
+  };
+
+  // PeerType's values are named client and server due to convention. But
+  // they could be called "A" and "B" as far as the protocol is concerned so
+  // long as the two parties don't both get the same label.
+  enum PeerType {
+    kPeerTypeClient,
+    kPeerTypeServer,
+  };
+
+  // peer_type: the type of the local authentication party.
+  // password: secret session password. Both parties to the
+  //     authentication must pass the same value. For the case of a
+  //     TLS connection, see RFC 5705.
+  P224EncryptedKeyExchange(PeerType peer_type,
+                           const base::StringPiece& password);
+
+  // GetMessage returns a byte string which must be passed to the other party
+  // in the authentication.
+  const std::string& GetMessage();
+
+  // ProcessMessage processes a message which must have been generated by a
+  // call to GetMessage() by the other party.
+  Result ProcessMessage(const base::StringPiece& message);
+
+  // In the event that ProcessMessage() returns kResultFailed, error will
+  // return a human readable error message.
+  const std::string& error() const;
+
+  // The key established as result of the key exchange. Must be called
+  // at then end after ProcessMessage() returns kResultSuccess.
+  const std::string& GetKey();
+
+ private:
+  // The authentication state machine is very simple and each party proceeds
+  // through each of these states, in order.
+  enum State {
+    kStateInitial,
+    kStateRecvDH,
+    kStateSendHash,
+    kStateRecvHash,
+    kStateDone,
+  };
+
+  State state_;
+  const bool is_server_;
+  // next_message_ contains a value for GetMessage() to return.
+  std::string next_message_;
+  std::string error_;
+
+  // CalculateHash computes the verification hash for the given peer and writes
+  // |kSHA256Length| bytes at |out_digest|.
+  void CalculateHash(
+      PeerType peer_type,
+      const std::string& client_masked_dh,
+      const std::string& server_masked_dh,
+      const std::string& k,
+      uint8* out_digest);
+
+  // x_ is the secret Diffie-Hellman exponent (see paper referenced in .cc
+  // file).
+  uint8 x_[p224::kScalarBytes];
+  // pw_ is SHA256(P(password), P(session))[:28] where P() prepends a uint32,
+  // big-endian length prefix (see paper refereneced in .cc file).
+  uint8 pw_[p224::kScalarBytes];
+  // expected_authenticator_ is used to store the hash value expected from the
+  // other party.
+  uint8 expected_authenticator_[kSHA256Length];
+
+  std::string key_;
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_P224_SPAKE_H_
diff --git a/crypto/p224_spake_unittest.cc b/crypto/p224_spake_unittest.cc
new file mode 100644
index 0000000..589cdbf
--- /dev/null
+++ b/crypto/p224_spake_unittest.cc
@@ -0,0 +1,130 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+#include <crypto/p224_spake.h>
+
+#include "base/logging.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+namespace {
+
+bool RunExchange(P224EncryptedKeyExchange* client,
+                 P224EncryptedKeyExchange* server) {
+  for (;;) {
+    std::string client_message, server_message;
+    client_message = client->GetMessage();
+    server_message = server->GetMessage();
+
+    P224EncryptedKeyExchange::Result client_result, server_result;
+    client_result = client->ProcessMessage(server_message);
+    server_result = server->ProcessMessage(client_message);
+
+    // Check that we never hit the case where only one succeeds.
+    if ((client_result == P224EncryptedKeyExchange::kResultSuccess) ^
+        (server_result == P224EncryptedKeyExchange::kResultSuccess)) {
+      CHECK(false) << "Parties differ on whether authentication was successful";
+    }
+
+    if (client_result == P224EncryptedKeyExchange::kResultFailed ||
+        server_result == P224EncryptedKeyExchange::kResultFailed) {
+      return false;
+    }
+
+    if (client_result == P224EncryptedKeyExchange::kResultSuccess &&
+        server_result == P224EncryptedKeyExchange::kResultSuccess) {
+      return true;
+    }
+
+    CHECK_EQ(P224EncryptedKeyExchange::kResultPending, client_result);
+    CHECK_EQ(P224EncryptedKeyExchange::kResultPending, server_result);
+  }
+}
+
+const char kPassword[] = "foo";
+
+}  // namespace
+
+TEST(MutualAuth, CorrectAuth) {
+  P224EncryptedKeyExchange client(
+      P224EncryptedKeyExchange::kPeerTypeClient, kPassword);
+  P224EncryptedKeyExchange server(
+      P224EncryptedKeyExchange::kPeerTypeServer, kPassword);
+
+  EXPECT_TRUE(RunExchange(&client, &server));
+  EXPECT_EQ(client.GetKey(), server.GetKey());
+}
+
+TEST(MutualAuth, IncorrectPassword) {
+  P224EncryptedKeyExchange client(
+      P224EncryptedKeyExchange::kPeerTypeClient,
+      kPassword);
+  P224EncryptedKeyExchange server(
+      P224EncryptedKeyExchange::kPeerTypeServer,
+      "wrongpassword");
+
+  EXPECT_FALSE(RunExchange(&client, &server));
+}
+
+TEST(MutualAuth, Fuzz) {
+  static const unsigned kIterations = 40;
+
+  for (unsigned i = 0; i < kIterations; i++) {
+    P224EncryptedKeyExchange client(
+        P224EncryptedKeyExchange::kPeerTypeClient, kPassword);
+    P224EncryptedKeyExchange server(
+        P224EncryptedKeyExchange::kPeerTypeServer, kPassword);
+
+    // We'll only be testing small values of i, but we don't want that to bias
+    // the test coverage. So we disperse the value of i by multiplying by the
+    // FNV, 32-bit prime, producing a poor-man's PRNG.
+    const uint32 rand = i * 16777619;
+
+    for (unsigned round = 0;; round++) {
+      std::string client_message, server_message;
+      client_message = client.GetMessage();
+      server_message = server.GetMessage();
+
+      if ((rand & 1) == round) {
+        const bool server_or_client = rand & 2;
+        std::string* m = server_or_client ? &server_message : &client_message;
+        if (rand & 4) {
+          // Truncate
+          *m = m->substr(0, (i >> 3) % m->size());
+        } else {
+          // Corrupt
+          const size_t bits = m->size() * 8;
+          const size_t bit_to_corrupt = (rand >> 3) % bits;
+          const_cast<char*>(m->data())[bit_to_corrupt / 8] ^=
+              1 << (bit_to_corrupt % 8);
+        }
+      }
+
+      P224EncryptedKeyExchange::Result client_result, server_result;
+      client_result = client.ProcessMessage(server_message);
+      server_result = server.ProcessMessage(client_message);
+
+      // If we have corrupted anything, we expect the authentication to fail,
+      // although one side can succeed if we happen to corrupt the second round
+      // message to the other.
+      ASSERT_FALSE(
+          client_result == P224EncryptedKeyExchange::kResultSuccess &&
+          server_result == P224EncryptedKeyExchange::kResultSuccess);
+
+      if (client_result == P224EncryptedKeyExchange::kResultFailed ||
+          server_result == P224EncryptedKeyExchange::kResultFailed) {
+        break;
+      }
+
+      ASSERT_EQ(P224EncryptedKeyExchange::kResultPending,
+                client_result);
+      ASSERT_EQ(P224EncryptedKeyExchange::kResultPending,
+                server_result);
+    }
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/p224_unittest.cc b/crypto/p224_unittest.cc
new file mode 100644
index 0000000..aaf5f59
--- /dev/null
+++ b/crypto/p224_unittest.cc
@@ -0,0 +1,824 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string.h>
+#include <stdio.h>
+
+#include "crypto/p224.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+using p224::Point;
+
+// kBasePointExternal is the P224 base point in external representation.
+static const uint8 kBasePointExternal[56] = {
+  0xb7, 0x0e, 0x0c, 0xbd, 0x6b, 0xb4, 0xbf, 0x7f,
+  0x32, 0x13, 0x90, 0xb9, 0x4a, 0x03, 0xc1, 0xd3,
+  0x56, 0xc2, 0x11, 0x22, 0x34, 0x32, 0x80, 0xd6,
+  0x11, 0x5c, 0x1d, 0x21, 0xbd, 0x37, 0x63, 0x88,
+  0xb5, 0xf7, 0x23, 0xfb, 0x4c, 0x22, 0xdf, 0xe6,
+  0xcd, 0x43, 0x75, 0xa0, 0x5a, 0x07, 0x47, 0x64,
+  0x44, 0xd5, 0x81, 0x99, 0x85, 0x00, 0x7e, 0x34,
+};
+
+// TestVector represents a test of scalar multiplication of the base point.
+// |scalar| is a big-endian scalar and |affine| is the external representation
+// of g*scalar.
+struct TestVector {
+  uint8 scalar[28];
+  uint8 affine[28*2];
+};
+
+static const int kNumNISTTestVectors = 52;
+
+// kNISTTestVectors are the NIST test vectors for P224.
+static const TestVector kNISTTestVectors[kNumNISTTestVectors] = {
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x01},
+    {0xb7, 0x0e, 0x0c, 0xbd, 0x6b, 0xb4, 0xbf, 0x7f,
+     0x32, 0x13, 0x90, 0xb9, 0x4a, 0x03, 0xc1, 0xd3,
+     0x56, 0xc2, 0x11, 0x22, 0x34, 0x32, 0x80, 0xd6,
+     0x11, 0x5c, 0x1d, 0x21, 0xbd, 0x37, 0x63, 0x88,
+     0xb5, 0xf7, 0x23, 0xfb, 0x4c, 0x22, 0xdf, 0xe6,
+     0xcd, 0x43, 0x75, 0xa0, 0x5a, 0x07, 0x47, 0x64,
+     0x44, 0xd5, 0x81, 0x99, 0x85, 0x00, 0x7e, 0x34
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x02, },
+
+    {0x70, 0x6a, 0x46, 0xdc, 0x76, 0xdc, 0xb7, 0x67,
+     0x98, 0xe6, 0x0e, 0x6d, 0x89, 0x47, 0x47, 0x88,
+     0xd1, 0x6d, 0xc1, 0x80, 0x32, 0xd2, 0x68, 0xfd,
+     0x1a, 0x70, 0x4f, 0xa6, 0x1c, 0x2b, 0x76, 0xa7,
+     0xbc, 0x25, 0xe7, 0x70, 0x2a, 0x70, 0x4f, 0xa9,
+     0x86, 0x89, 0x28, 0x49, 0xfc, 0xa6, 0x29, 0x48,
+     0x7a, 0xcf, 0x37, 0x09, 0xd2, 0xe4, 0xe8, 0xbb,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x03, },
+    {0xdf, 0x1b, 0x1d, 0x66, 0xa5, 0x51, 0xd0, 0xd3,
+     0x1e, 0xff, 0x82, 0x25, 0x58, 0xb9, 0xd2, 0xcc,
+     0x75, 0xc2, 0x18, 0x02, 0x79, 0xfe, 0x0d, 0x08,
+     0xfd, 0x89, 0x6d, 0x04, 0xa3, 0xf7, 0xf0, 0x3c,
+     0xad, 0xd0, 0xbe, 0x44, 0x4c, 0x0a, 0xa5, 0x68,
+     0x30, 0x13, 0x0d, 0xdf, 0x77, 0xd3, 0x17, 0x34,
+     0x4e, 0x1a, 0xf3, 0x59, 0x19, 0x81, 0xa9, 0x25,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x04, },
+    {0xae, 0x99, 0xfe, 0xeb, 0xb5, 0xd2, 0x69, 0x45,
+     0xb5, 0x48, 0x92, 0x09, 0x2a, 0x8a, 0xee, 0x02,
+     0x91, 0x29, 0x30, 0xfa, 0x41, 0xcd, 0x11, 0x4e,
+     0x40, 0x44, 0x73, 0x01, 0x04, 0x82, 0x58, 0x0a,
+     0x0e, 0xc5, 0xbc, 0x47, 0xe8, 0x8b, 0xc8, 0xc3,
+     0x78, 0x63, 0x2c, 0xd1, 0x96, 0xcb, 0x3f, 0xa0,
+     0x58, 0xa7, 0x11, 0x4e, 0xb0, 0x30, 0x54, 0xc9,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x05, },
+    {0x31, 0xc4, 0x9a, 0xe7, 0x5b, 0xce, 0x78, 0x07,
+     0xcd, 0xff, 0x22, 0x05, 0x5d, 0x94, 0xee, 0x90,
+     0x21, 0xfe, 0xdb, 0xb5, 0xab, 0x51, 0xc5, 0x75,
+     0x26, 0xf0, 0x11, 0xaa, 0x27, 0xe8, 0xbf, 0xf1,
+     0x74, 0x56, 0x35, 0xec, 0x5b, 0xa0, 0xc9, 0xf1,
+     0xc2, 0xed, 0xe1, 0x54, 0x14, 0xc6, 0x50, 0x7d,
+     0x29, 0xff, 0xe3, 0x7e, 0x79, 0x0a, 0x07, 0x9b,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x06, },
+    {0x1f, 0x24, 0x83, 0xf8, 0x25, 0x72, 0x25, 0x1f,
+     0xca, 0x97, 0x5f, 0xea, 0x40, 0xdb, 0x82, 0x1d,
+     0xf8, 0xad, 0x82, 0xa3, 0xc0, 0x02, 0xee, 0x6c,
+     0x57, 0x11, 0x24, 0x08, 0x89, 0xfa, 0xf0, 0xcc,
+     0xb7, 0x50, 0xd9, 0x9b, 0x55, 0x3c, 0x57, 0x4f,
+     0xad, 0x7e, 0xcf, 0xb0, 0x43, 0x85, 0x86, 0xeb,
+     0x39, 0x52, 0xaf, 0x5b, 0x4b, 0x15, 0x3c, 0x7e,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x07, },
+    {0xdb, 0x2f, 0x6b, 0xe6, 0x30, 0xe2, 0x46, 0xa5,
+     0xcf, 0x7d, 0x99, 0xb8, 0x51, 0x94, 0xb1, 0x23,
+     0xd4, 0x87, 0xe2, 0xd4, 0x66, 0xb9, 0x4b, 0x24,
+     0xa0, 0x3c, 0x3e, 0x28, 0x0f, 0x3a, 0x30, 0x08,
+     0x54, 0x97, 0xf2, 0xf6, 0x11, 0xee, 0x25, 0x17,
+     0xb1, 0x63, 0xef, 0x8c, 0x53, 0xb7, 0x15, 0xd1,
+     0x8b, 0xb4, 0xe4, 0x80, 0x8d, 0x02, 0xb9, 0x63,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x08, },
+    {0x85, 0x8e, 0x6f, 0x9c, 0xc6, 0xc1, 0x2c, 0x31,
+     0xf5, 0xdf, 0x12, 0x4a, 0xa7, 0x77, 0x67, 0xb0,
+     0x5c, 0x8b, 0xc0, 0x21, 0xbd, 0x68, 0x3d, 0x2b,
+     0x55, 0x57, 0x15, 0x50, 0x04, 0x6d, 0xcd, 0x3e,
+     0xa5, 0xc4, 0x38, 0x98, 0xc5, 0xc5, 0xfc, 0x4f,
+     0xda, 0xc7, 0xdb, 0x39, 0xc2, 0xf0, 0x2e, 0xbe,
+     0xe4, 0xe3, 0x54, 0x1d, 0x1e, 0x78, 0x04, 0x7a,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x09, },
+    {0x2f, 0xdc, 0xcc, 0xfe, 0xe7, 0x20, 0xa7, 0x7e,
+     0xf6, 0xcb, 0x3b, 0xfb, 0xb4, 0x47, 0xf9, 0x38,
+     0x31, 0x17, 0xe3, 0xda, 0xa4, 0xa0, 0x7e, 0x36,
+     0xed, 0x15, 0xf7, 0x8d, 0x37, 0x17, 0x32, 0xe4,
+     0xf4, 0x1b, 0xf4, 0xf7, 0x88, 0x30, 0x35, 0xe6,
+     0xa7, 0x9f, 0xce, 0xdc, 0x0e, 0x19, 0x6e, 0xb0,
+     0x7b, 0x48, 0x17, 0x16, 0x97, 0x51, 0x74, 0x63,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x0a, },
+    {0xae, 0xa9, 0xe1, 0x7a, 0x30, 0x65, 0x17, 0xeb,
+     0x89, 0x15, 0x2a, 0xa7, 0x09, 0x6d, 0x2c, 0x38,
+     0x1e, 0xc8, 0x13, 0xc5, 0x1a, 0xa8, 0x80, 0xe7,
+     0xbe, 0xe2, 0xc0, 0xfd, 0x39, 0xbb, 0x30, 0xea,
+     0xb3, 0x37, 0xe0, 0xa5, 0x21, 0xb6, 0xcb, 0xa1,
+     0xab, 0xe4, 0xb2, 0xb3, 0xa3, 0xe5, 0x24, 0xc1,
+     0x4a, 0x3f, 0xe3, 0xeb, 0x11, 0x6b, 0x65, 0x5f,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x0b, },
+    {0xef, 0x53, 0xb6, 0x29, 0x4a, 0xca, 0x43, 0x1f,
+     0x0f, 0x3c, 0x22, 0xdc, 0x82, 0xeb, 0x90, 0x50,
+     0x32, 0x4f, 0x1d, 0x88, 0xd3, 0x77, 0xe7, 0x16,
+     0x44, 0x8e, 0x50, 0x7c, 0x20, 0xb5, 0x10, 0x00,
+     0x40, 0x92, 0xe9, 0x66, 0x36, 0xcf, 0xb7, 0xe3,
+     0x2e, 0xfd, 0xed, 0x82, 0x65, 0xc2, 0x66, 0xdf,
+     0xb7, 0x54, 0xfa, 0x6d, 0x64, 0x91, 0xa6, 0xda,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x0c, },
+    {0x6e, 0x31, 0xee, 0x1d, 0xc1, 0x37, 0xf8, 0x1b,
+     0x05, 0x67, 0x52, 0xe4, 0xde, 0xab, 0x14, 0x43,
+     0xa4, 0x81, 0x03, 0x3e, 0x9b, 0x4c, 0x93, 0xa3,
+     0x04, 0x4f, 0x4f, 0x7a, 0x20, 0x7d, 0xdd, 0xf0,
+     0x38, 0x5b, 0xfd, 0xea, 0xb6, 0xe9, 0xac, 0xda,
+     0x8d, 0xa0, 0x6b, 0x3b, 0xbe, 0xf2, 0x24, 0xa9,
+     0x3a, 0xb1, 0xe9, 0xe0, 0x36, 0x10, 0x9d, 0x13,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x0d, },
+    {0x34, 0xe8, 0xe1, 0x7a, 0x43, 0x0e, 0x43, 0x28,
+     0x97, 0x93, 0xc3, 0x83, 0xfa, 0xc9, 0x77, 0x42,
+     0x47, 0xb4, 0x0e, 0x9e, 0xbd, 0x33, 0x66, 0x98,
+     0x1f, 0xcf, 0xae, 0xca, 0x25, 0x28, 0x19, 0xf7,
+     0x1c, 0x7f, 0xb7, 0xfb, 0xcb, 0x15, 0x9b, 0xe3,
+     0x37, 0xd3, 0x7d, 0x33, 0x36, 0xd7, 0xfe, 0xb9,
+     0x63, 0x72, 0x4f, 0xdf, 0xb0, 0xec, 0xb7, 0x67,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x0e, },
+    {0xa5, 0x36, 0x40, 0xc8, 0x3d, 0xc2, 0x08, 0x60,
+     0x3d, 0xed, 0x83, 0xe4, 0xec, 0xf7, 0x58, 0xf2,
+     0x4c, 0x35, 0x7d, 0x7c, 0xf4, 0x80, 0x88, 0xb2,
+     0xce, 0x01, 0xe9, 0xfa, 0xd5, 0x81, 0x4c, 0xd7,
+     0x24, 0x19, 0x9c, 0x4a, 0x5b, 0x97, 0x4a, 0x43,
+     0x68, 0x5f, 0xbf, 0x5b, 0x8b, 0xac, 0x69, 0x45,
+     0x9c, 0x94, 0x69, 0xbc, 0x8f, 0x23, 0xcc, 0xaf,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x0f, },
+    {0xba, 0xa4, 0xd8, 0x63, 0x55, 0x11, 0xa7, 0xd2,
+     0x88, 0xae, 0xbe, 0xed, 0xd1, 0x2c, 0xe5, 0x29,
+     0xff, 0x10, 0x2c, 0x91, 0xf9, 0x7f, 0x86, 0x7e,
+     0x21, 0x91, 0x6b, 0xf9, 0x97, 0x9a, 0x5f, 0x47,
+     0x59, 0xf8, 0x0f, 0x4f, 0xb4, 0xec, 0x2e, 0x34,
+     0xf5, 0x56, 0x6d, 0x59, 0x56, 0x80, 0xa1, 0x17,
+     0x35, 0xe7, 0xb6, 0x10, 0x46, 0x12, 0x79, 0x89,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x10, },
+    {0x0b, 0x6e, 0xc4, 0xfe, 0x17, 0x77, 0x38, 0x24,
+     0x04, 0xef, 0x67, 0x99, 0x97, 0xba, 0x8d, 0x1c,
+     0xc5, 0xcd, 0x8e, 0x85, 0x34, 0x92, 0x59, 0xf5,
+     0x90, 0xc4, 0xc6, 0x6d, 0x33, 0x99, 0xd4, 0x64,
+     0x34, 0x59, 0x06, 0xb1, 0x1b, 0x00, 0xe3, 0x63,
+     0xef, 0x42, 0x92, 0x21, 0xf2, 0xec, 0x72, 0x0d,
+     0x2f, 0x66, 0x5d, 0x7d, 0xea, 0xd5, 0xb4, 0x82,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x11, },
+    {0xb8, 0x35, 0x7c, 0x3a, 0x6c, 0xee, 0xf2, 0x88,
+     0x31, 0x0e, 0x17, 0xb8, 0xbf, 0xef, 0xf9, 0x20,
+     0x08, 0x46, 0xca, 0x8c, 0x19, 0x42, 0x49, 0x7c,
+     0x48, 0x44, 0x03, 0xbc, 0xff, 0x14, 0x9e, 0xfa,
+     0x66, 0x06, 0xa6, 0xbd, 0x20, 0xef, 0x7d, 0x1b,
+     0x06, 0xbd, 0x92, 0xf6, 0x90, 0x46, 0x39, 0xdc,
+     0xe5, 0x17, 0x4d, 0xb6, 0xcc, 0x55, 0x4a, 0x26,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x12, },
+    {0xc9, 0xff, 0x61, 0xb0, 0x40, 0x87, 0x4c, 0x05,
+     0x68, 0x47, 0x92, 0x16, 0x82, 0x4a, 0x15, 0xea,
+     0xb1, 0xa8, 0x38, 0xa7, 0x97, 0xd1, 0x89, 0x74,
+     0x62, 0x26, 0xe4, 0xcc, 0xea, 0x98, 0xd6, 0x0e,
+     0x5f, 0xfc, 0x9b, 0x8f, 0xcf, 0x99, 0x9f, 0xab,
+     0x1d, 0xf7, 0xe7, 0xef, 0x70, 0x84, 0xf2, 0x0d,
+     0xdb, 0x61, 0xbb, 0x04, 0x5a, 0x6c, 0xe0, 0x02,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x13, },
+    {0xa1, 0xe8, 0x1c, 0x04, 0xf3, 0x0c, 0xe2, 0x01,
+     0xc7, 0xc9, 0xac, 0xe7, 0x85, 0xed, 0x44, 0xcc,
+     0x33, 0xb4, 0x55, 0xa0, 0x22, 0xf2, 0xac, 0xdb,
+     0xc6, 0xca, 0xe8, 0x3c, 0xdc, 0xf1, 0xf6, 0xc3,
+     0xdb, 0x09, 0xc7, 0x0a, 0xcc, 0x25, 0x39, 0x1d,
+     0x49, 0x2f, 0xe2, 0x5b, 0x4a, 0x18, 0x0b, 0xab,
+     0xd6, 0xce, 0xa3, 0x56, 0xc0, 0x47, 0x19, 0xcd,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x14, },
+    {0xfc, 0xc7, 0xf2, 0xb4, 0x5d, 0xf1, 0xcd, 0x5a,
+     0x3c, 0x0c, 0x07, 0x31, 0xca, 0x47, 0xa8, 0xaf,
+     0x75, 0xcf, 0xb0, 0x34, 0x7e, 0x83, 0x54, 0xee,
+     0xfe, 0x78, 0x24, 0x55, 0x0d, 0x5d, 0x71, 0x10,
+     0x27, 0x4c, 0xba, 0x7c, 0xde, 0xe9, 0x0e, 0x1a,
+     0x8b, 0x0d, 0x39, 0x4c, 0x37, 0x6a, 0x55, 0x73,
+     0xdb, 0x6b, 0xe0, 0xbf, 0x27, 0x47, 0xf5, 0x30,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x01, 0x8e, 0xbb, 0xb9,
+     0x5e, 0xed, 0x0e, 0x13, },
+    {0x61, 0xf0, 0x77, 0xc6, 0xf6, 0x2e, 0xd8, 0x02,
+     0xda, 0xd7, 0xc2, 0xf3, 0x8f, 0x5c, 0x67, 0xf2,
+     0xcc, 0x45, 0x36, 0x01, 0xe6, 0x1b, 0xd0, 0x76,
+     0xbb, 0x46, 0x17, 0x9e, 0x22, 0x72, 0xf9, 0xe9,
+     0xf5, 0x93, 0x3e, 0x70, 0x38, 0x8e, 0xe6, 0x52,
+     0x51, 0x34, 0x43, 0xb5, 0xe2, 0x89, 0xdd, 0x13,
+     0x5d, 0xcc, 0x0d, 0x02, 0x99, 0xb2, 0x25, 0xe4,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x9d, 0x89,
+     0x3d, 0x4c, 0xdd, 0x74, 0x72, 0x46, 0xcd, 0xca,
+     0x43, 0x59, 0x0e, 0x13, },
+    {0x02, 0x98, 0x95, 0xf0, 0xaf, 0x49, 0x6b, 0xfc,
+     0x62, 0xb6, 0xef, 0x8d, 0x8a, 0x65, 0xc8, 0x8c,
+     0x61, 0x39, 0x49, 0xb0, 0x36, 0x68, 0xaa, 0xb4,
+     0xf0, 0x42, 0x9e, 0x35, 0x3e, 0xa6, 0xe5, 0x3f,
+     0x9a, 0x84, 0x1f, 0x20, 0x19, 0xec, 0x24, 0xbd,
+     0xe1, 0xa7, 0x56, 0x77, 0xaa, 0x9b, 0x59, 0x02,
+     0xe6, 0x10, 0x81, 0xc0, 0x10, 0x64, 0xde, 0x93,
+    },
+  },
+  {
+    {0x41, 0xff, 0xc1, 0xff, 0xff, 0xfe, 0x01, 0xff,
+     0xfc, 0x00, 0x03, 0xff, 0xfe, 0x00, 0x07, 0xc0,
+     0x01, 0xff, 0xf0, 0x00, 0x03, 0xff, 0xf0, 0x7f,
+     0xfe, 0x00, 0x07, 0xc0, },
+    {0xab, 0x68, 0x99, 0x30, 0xbc, 0xae, 0x4a, 0x4a,
+     0xa5, 0xf5, 0xcb, 0x08, 0x5e, 0x82, 0x3e, 0x8a,
+     0xe3, 0x0f, 0xd3, 0x65, 0xeb, 0x1d, 0xa4, 0xab,
+     0xa9, 0xcf, 0x03, 0x79, 0x33, 0x45, 0xa1, 0x21,
+     0xbb, 0xd2, 0x33, 0x54, 0x8a, 0xf0, 0xd2, 0x10,
+     0x65, 0x4e, 0xb4, 0x0b, 0xab, 0x78, 0x8a, 0x03,
+     0x66, 0x64, 0x19, 0xbe, 0x6f, 0xbd, 0x34, 0xe7,
+    },
+  },
+  {
+    {0x7f, 0xff, 0xff, 0xc0, 0x3f, 0xff, 0xc0, 0x03,
+     0xff, 0xff, 0xfc, 0x00, 0x7f, 0xff, 0x00, 0x00,
+     0x00, 0x00, 0x07, 0x00, 0x00, 0x10, 0x00, 0x00,
+     0x00, 0x0e, 0x00, 0xff, },
+    {0xbd, 0xb6, 0xa8, 0x81, 0x7c, 0x1f, 0x89, 0xda,
+     0x1c, 0x2f, 0x3d, 0xd8, 0xe9, 0x7f, 0xeb, 0x44,
+     0x94, 0xf2, 0xed, 0x30, 0x2a, 0x4c, 0xe2, 0xbc,
+     0x7f, 0x5f, 0x40, 0x25, 0x4c, 0x70, 0x20, 0xd5,
+     0x7c, 0x00, 0x41, 0x18, 0x89, 0x46, 0x2d, 0x77,
+     0xa5, 0x43, 0x8b, 0xb4, 0xe9, 0x7d, 0x17, 0x77,
+     0x00, 0xbf, 0x72, 0x43, 0xa0, 0x7f, 0x16, 0x80,
+    },
+  },
+  {
+    {0x7f, 0xff, 0xff, 0x04, 0x00, 0x00, 0x00, 0x00,
+     0xff, 0xff, 0xf0, 0x1f, 0xff, 0xf8, 0xff, 0xff,
+     0xc0, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x00,
+     0x00, 0x0f, 0xff, 0xff, },
+    {0xd5, 0x8b, 0x61, 0xaa, 0x41, 0xc3, 0x2d, 0xd5,
+     0xeb, 0xa4, 0x62, 0x64, 0x7d, 0xba, 0x75, 0xc5,
+     0xd6, 0x7c, 0x83, 0x60, 0x6c, 0x0a, 0xf2, 0xbd,
+     0x92, 0x84, 0x46, 0xa9, 0xd2, 0x4b, 0xa6, 0xa8,
+     0x37, 0xbe, 0x04, 0x60, 0xdd, 0x10, 0x7a, 0xe7,
+     0x77, 0x25, 0x69, 0x6d, 0x21, 0x14, 0x46, 0xc5,
+     0x60, 0x9b, 0x45, 0x95, 0x97, 0x6b, 0x16, 0xbd,
+    },
+  },
+  {
+    {0x7f, 0xff, 0xff, 0xc0, 0x00, 0xff, 0xfe, 0x3f,
+     0xff, 0xfc, 0x10, 0x00, 0x00, 0x20, 0x00, 0x3f,
+     0xff, 0xff, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00,
+     0x3f, 0xff, 0xff, 0xff, },
+    {0xdc, 0x9f, 0xa7, 0x79, 0x78, 0xa0, 0x05, 0x51,
+     0x09, 0x80, 0xe9, 0x29, 0xa1, 0x48, 0x5f, 0x63,
+     0x71, 0x6d, 0xf6, 0x95, 0xd7, 0xa0, 0xc1, 0x8b,
+     0xb5, 0x18, 0xdf, 0x03, 0xed, 0xe2, 0xb0, 0x16,
+     0xf2, 0xdd, 0xff, 0xc2, 0xa8, 0xc0, 0x15, 0xb1,
+     0x34, 0x92, 0x82, 0x75, 0xce, 0x09, 0xe5, 0x66,
+     0x1b, 0x7a, 0xb1, 0x4c, 0xe0, 0xd1, 0xd4, 0x03,
+    },
+  },
+  {
+    {0x70, 0x01, 0xf0, 0x00, 0x1c, 0x00, 0x01, 0xc0,
+     0x00, 0x00, 0x1f, 0xff, 0xff, 0xfc, 0x00, 0x00,
+     0x1f, 0xff, 0xff, 0xf8, 0x00, 0x0f, 0xc0, 0x00,
+     0x00, 0x01, 0xfc, 0x00, },
+    {0x49, 0x9d, 0x8b, 0x28, 0x29, 0xcf, 0xb8, 0x79,
+     0xc9, 0x01, 0xf7, 0xd8, 0x5d, 0x35, 0x70, 0x45,
+     0xed, 0xab, 0x55, 0x02, 0x88, 0x24, 0xd0, 0xf0,
+     0x5b, 0xa2, 0x79, 0xba, 0xbf, 0x92, 0x95, 0x37,
+     0xb0, 0x6e, 0x40, 0x15, 0x91, 0x96, 0x39, 0xd9,
+     0x4f, 0x57, 0x83, 0x8f, 0xa3, 0x3f, 0xc3, 0xd9,
+     0x52, 0x59, 0x8d, 0xcd, 0xbb, 0x44, 0xd6, 0x38,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x00, 0x1f, 0xfc, 0x00, 0x00,
+     0x00, 0xff, 0xf0, 0x30, 0x00, 0x1f, 0x00, 0x00,
+     0xff, 0xff, 0xf0, 0x00, 0x00, 0x38, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x02, },
+    {0x82, 0x46, 0xc9, 0x99, 0x13, 0x71, 0x86, 0x63,
+     0x2c, 0x5f, 0x9e, 0xdd, 0xf3, 0xb1, 0xb0, 0xe1,
+     0x76, 0x4c, 0x5e, 0x8b, 0xd0, 0xe0, 0xd8, 0xa5,
+     0x54, 0xb9, 0xcb, 0x77, 0xe8, 0x0e, 0xd8, 0x66,
+     0x0b, 0xc1, 0xcb, 0x17, 0xac, 0x7d, 0x84, 0x5b,
+     0xe4, 0x0a, 0x7a, 0x02, 0x2d, 0x33, 0x06, 0xf1,
+     0x16, 0xae, 0x9f, 0x81, 0xfe, 0xa6, 0x59, 0x47,
+    },
+  },
+  {
+    {0x7f, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x07, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0xff, 0xfe, 0x08, 0x00, 0x00, 0x1f,
+     0xf0, 0x00, 0x1f, 0xff, },
+    {0x66, 0x70, 0xc2, 0x0a, 0xfc, 0xce, 0xae, 0xa6,
+     0x72, 0xc9, 0x7f, 0x75, 0xe2, 0xe9, 0xdd, 0x5c,
+     0x84, 0x60, 0xe5, 0x4b, 0xb3, 0x85, 0x38, 0xeb,
+     0xb4, 0xbd, 0x30, 0xeb, 0xf2, 0x80, 0xd8, 0x00,
+     0x8d, 0x07, 0xa4, 0xca, 0xf5, 0x42, 0x71, 0xf9,
+     0x93, 0x52, 0x7d, 0x46, 0xff, 0x3f, 0xf4, 0x6f,
+     0xd1, 0x19, 0x0a, 0x3f, 0x1f, 0xaa, 0x4f, 0x74,
+    },
+  },
+  {
+    {0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xc0, 0x00, 0x07, 0xff, 0xff, 0xe0, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xf8, 0x00, 0xff,
+     0xff, 0xff, 0xff, 0xff, },
+    {0x00, 0x0e, 0xca, 0x93, 0x42, 0x47, 0x42, 0x5c,
+     0xfd, 0x94, 0x9b, 0x79, 0x5c, 0xb5, 0xce, 0x1e,
+     0xff, 0x40, 0x15, 0x50, 0x38, 0x6e, 0x28, 0xd1,
+     0xa4, 0xc5, 0xa8, 0xeb, 0xd4, 0xc0, 0x10, 0x40,
+     0xdb, 0xa1, 0x96, 0x28, 0x93, 0x1b, 0xc8, 0x85,
+     0x53, 0x70, 0x31, 0x7c, 0x72, 0x2c, 0xbd, 0x9c,
+     0xa6, 0x15, 0x69, 0x85, 0xf1, 0xc2, 0xe9, 0xce,
+    },
+  },
+  {
+    {0x7f, 0xff, 0xfc, 0x03, 0xff, 0x80, 0x7f, 0xff,
+     0xe0, 0x00, 0x1f, 0xff, 0xff, 0x80, 0x0f, 0xff,
+     0x80, 0x00, 0x01, 0xff, 0xff, 0x00, 0x01, 0xff,
+     0xff, 0xfe, 0x00, 0x1f, },
+    {0xef, 0x35, 0x3b, 0xf5, 0xc7, 0x3c, 0xd5, 0x51,
+     0xb9, 0x6d, 0x59, 0x6f, 0xbc, 0x9a, 0x67, 0xf1,
+     0x6d, 0x61, 0xdd, 0x9f, 0xe5, 0x6a, 0xf1, 0x9d,
+     0xe1, 0xfb, 0xa9, 0xcd, 0x21, 0x77, 0x1b, 0x9c,
+     0xdc, 0xe3, 0xe8, 0x43, 0x0c, 0x09, 0xb3, 0x83,
+     0x8b, 0xe7, 0x0b, 0x48, 0xc2, 0x1e, 0x15, 0xbc,
+     0x09, 0xee, 0x1f, 0x2d, 0x79, 0x45, 0xb9, 0x1f,
+    },
+  },
+  {
+    {0x00, 0x00, 0x00, 0x07, 0xff, 0xc0, 0x7f, 0xff,
+     0xff, 0xff, 0x01, 0xff, 0xfe, 0x03, 0xff, 0xfe,
+     0x40, 0x00, 0x38, 0x00, 0x07, 0xe0, 0x00, 0x3f,
+     0xfe, 0x00, 0x00, 0x00, },
+    {0x40, 0x36, 0x05, 0x2a, 0x30, 0x91, 0xeb, 0x48,
+     0x10, 0x46, 0xad, 0x32, 0x89, 0xc9, 0x5d, 0x3a,
+     0xc9, 0x05, 0xca, 0x00, 0x23, 0xde, 0x2c, 0x03,
+     0xec, 0xd4, 0x51, 0xcf, 0xd7, 0x68, 0x16, 0x5a,
+     0x38, 0xa2, 0xb9, 0x6f, 0x81, 0x25, 0x86, 0xa9,
+     0xd5, 0x9d, 0x41, 0x36, 0x03, 0x5d, 0x9c, 0x85,
+     0x3a, 0x5b, 0xf2, 0xe1, 0xc8, 0x6a, 0x49, 0x93,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x29, },
+    {0xfc, 0xc7, 0xf2, 0xb4, 0x5d, 0xf1, 0xcd, 0x5a,
+     0x3c, 0x0c, 0x07, 0x31, 0xca, 0x47, 0xa8, 0xaf,
+     0x75, 0xcf, 0xb0, 0x34, 0x7e, 0x83, 0x54, 0xee,
+     0xfe, 0x78, 0x24, 0x55, 0xf2, 0xa2, 0x8e, 0xef,
+     0xd8, 0xb3, 0x45, 0x83, 0x21, 0x16, 0xf1, 0xe5,
+     0x74, 0xf2, 0xc6, 0xb2, 0xc8, 0x95, 0xaa, 0x8c,
+     0x24, 0x94, 0x1f, 0x40, 0xd8, 0xb8, 0x0a, 0xd1,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x2a, },
+    {0xa1, 0xe8, 0x1c, 0x04, 0xf3, 0x0c, 0xe2, 0x01,
+     0xc7, 0xc9, 0xac, 0xe7, 0x85, 0xed, 0x44, 0xcc,
+     0x33, 0xb4, 0x55, 0xa0, 0x22, 0xf2, 0xac, 0xdb,
+     0xc6, 0xca, 0xe8, 0x3c, 0x23, 0x0e, 0x09, 0x3c,
+     0x24, 0xf6, 0x38, 0xf5, 0x33, 0xda, 0xc6, 0xe2,
+     0xb6, 0xd0, 0x1d, 0xa3, 0xb5, 0xe7, 0xf4, 0x54,
+     0x29, 0x31, 0x5c, 0xa9, 0x3f, 0xb8, 0xe6, 0x34,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x2b, },
+    {0xc9, 0xff, 0x61, 0xb0, 0x40, 0x87, 0x4c, 0x05,
+     0x68, 0x47, 0x92, 0x16, 0x82, 0x4a, 0x15, 0xea,
+     0xb1, 0xa8, 0x38, 0xa7, 0x97, 0xd1, 0x89, 0x74,
+     0x62, 0x26, 0xe4, 0xcc, 0x15, 0x67, 0x29, 0xf1,
+     0xa0, 0x03, 0x64, 0x70, 0x30, 0x66, 0x60, 0x54,
+     0xe2, 0x08, 0x18, 0x0f, 0x8f, 0x7b, 0x0d, 0xf2,
+     0x24, 0x9e, 0x44, 0xfb, 0xa5, 0x93, 0x1f, 0xff,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x2c, },
+    {0xb8, 0x35, 0x7c, 0x3a, 0x6c, 0xee, 0xf2, 0x88,
+     0x31, 0x0e, 0x17, 0xb8, 0xbf, 0xef, 0xf9, 0x20,
+     0x08, 0x46, 0xca, 0x8c, 0x19, 0x42, 0x49, 0x7c,
+     0x48, 0x44, 0x03, 0xbc, 0x00, 0xeb, 0x61, 0x05,
+     0x99, 0xf9, 0x59, 0x42, 0xdf, 0x10, 0x82, 0xe4,
+     0xf9, 0x42, 0x6d, 0x08, 0x6f, 0xb9, 0xc6, 0x23,
+     0x1a, 0xe8, 0xb2, 0x49, 0x33, 0xaa, 0xb5, 0xdb,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x2d, },
+    {0x0b, 0x6e, 0xc4, 0xfe, 0x17, 0x77, 0x38, 0x24,
+     0x04, 0xef, 0x67, 0x99, 0x97, 0xba, 0x8d, 0x1c,
+     0xc5, 0xcd, 0x8e, 0x85, 0x34, 0x92, 0x59, 0xf5,
+     0x90, 0xc4, 0xc6, 0x6d, 0xcc, 0x66, 0x2b, 0x9b,
+     0xcb, 0xa6, 0xf9, 0x4e, 0xe4, 0xff, 0x1c, 0x9c,
+     0x10, 0xbd, 0x6d, 0xdd, 0x0d, 0x13, 0x8d, 0xf2,
+     0xd0, 0x99, 0xa2, 0x82, 0x15, 0x2a, 0x4b, 0x7f,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x2e, },
+    {0xba, 0xa4, 0xd8, 0x63, 0x55, 0x11, 0xa7, 0xd2,
+     0x88, 0xae, 0xbe, 0xed, 0xd1, 0x2c, 0xe5, 0x29,
+     0xff, 0x10, 0x2c, 0x91, 0xf9, 0x7f, 0x86, 0x7e,
+     0x21, 0x91, 0x6b, 0xf9, 0x68, 0x65, 0xa0, 0xb8,
+     0xa6, 0x07, 0xf0, 0xb0, 0x4b, 0x13, 0xd1, 0xcb,
+     0x0a, 0xa9, 0x92, 0xa5, 0xa9, 0x7f, 0x5e, 0xe8,
+     0xca, 0x18, 0x49, 0xef, 0xb9, 0xed, 0x86, 0x78,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x2f, },
+    {0xa5, 0x36, 0x40, 0xc8, 0x3d, 0xc2, 0x08, 0x60,
+     0x3d, 0xed, 0x83, 0xe4, 0xec, 0xf7, 0x58, 0xf2,
+     0x4c, 0x35, 0x7d, 0x7c, 0xf4, 0x80, 0x88, 0xb2,
+     0xce, 0x01, 0xe9, 0xfa, 0x2a, 0x7e, 0xb3, 0x28,
+     0xdb, 0xe6, 0x63, 0xb5, 0xa4, 0x68, 0xb5, 0xbc,
+     0x97, 0xa0, 0x40, 0xa3, 0x74, 0x53, 0x96, 0xba,
+     0x63, 0x6b, 0x96, 0x43, 0x70, 0xdc, 0x33, 0x52,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x30, },
+    {0x34, 0xe8, 0xe1, 0x7a, 0x43, 0x0e, 0x43, 0x28,
+     0x97, 0x93, 0xc3, 0x83, 0xfa, 0xc9, 0x77, 0x42,
+     0x47, 0xb4, 0x0e, 0x9e, 0xbd, 0x33, 0x66, 0x98,
+     0x1f, 0xcf, 0xae, 0xca, 0xda, 0xd7, 0xe6, 0x08,
+     0xe3, 0x80, 0x48, 0x04, 0x34, 0xea, 0x64, 0x1c,
+     0xc8, 0x2c, 0x82, 0xcb, 0xc9, 0x28, 0x01, 0x46,
+     0x9c, 0x8d, 0xb0, 0x20, 0x4f, 0x13, 0x48, 0x9a,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x31, },
+    {0x6e, 0x31, 0xee, 0x1d, 0xc1, 0x37, 0xf8, 0x1b,
+     0x05, 0x67, 0x52, 0xe4, 0xde, 0xab, 0x14, 0x43,
+     0xa4, 0x81, 0x03, 0x3e, 0x9b, 0x4c, 0x93, 0xa3,
+     0x04, 0x4f, 0x4f, 0x7a, 0xdf, 0x82, 0x22, 0x0f,
+     0xc7, 0xa4, 0x02, 0x15, 0x49, 0x16, 0x53, 0x25,
+     0x72, 0x5f, 0x94, 0xc3, 0x41, 0x0d, 0xdb, 0x56,
+     0xc5, 0x4e, 0x16, 0x1f, 0xc9, 0xef, 0x62, 0xee,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x32, },
+    {0xef, 0x53, 0xb6, 0x29, 0x4a, 0xca, 0x43, 0x1f,
+     0x0f, 0x3c, 0x22, 0xdc, 0x82, 0xeb, 0x90, 0x50,
+     0x32, 0x4f, 0x1d, 0x88, 0xd3, 0x77, 0xe7, 0x16,
+     0x44, 0x8e, 0x50, 0x7c, 0xdf, 0x4a, 0xef, 0xff,
+     0xbf, 0x6d, 0x16, 0x99, 0xc9, 0x30, 0x48, 0x1c,
+     0xd1, 0x02, 0x12, 0x7c, 0x9a, 0x3d, 0x99, 0x20,
+     0x48, 0xab, 0x05, 0x92, 0x9b, 0x6e, 0x59, 0x27,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x33, },
+    {0xae, 0xa9, 0xe1, 0x7a, 0x30, 0x65, 0x17, 0xeb,
+     0x89, 0x15, 0x2a, 0xa7, 0x09, 0x6d, 0x2c, 0x38,
+     0x1e, 0xc8, 0x13, 0xc5, 0x1a, 0xa8, 0x80, 0xe7,
+     0xbe, 0xe2, 0xc0, 0xfd, 0xc6, 0x44, 0xcf, 0x15,
+     0x4c, 0xc8, 0x1f, 0x5a, 0xde, 0x49, 0x34, 0x5e,
+     0x54, 0x1b, 0x4d, 0x4b, 0x5c, 0x1a, 0xdb, 0x3e,
+     0xb5, 0xc0, 0x1c, 0x14, 0xee, 0x94, 0x9a, 0xa2,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x34, },
+    {0x2f, 0xdc, 0xcc, 0xfe, 0xe7, 0x20, 0xa7, 0x7e,
+     0xf6, 0xcb, 0x3b, 0xfb, 0xb4, 0x47, 0xf9, 0x38,
+     0x31, 0x17, 0xe3, 0xda, 0xa4, 0xa0, 0x7e, 0x36,
+     0xed, 0x15, 0xf7, 0x8d, 0xc8, 0xe8, 0xcd, 0x1b,
+     0x0b, 0xe4, 0x0b, 0x08, 0x77, 0xcf, 0xca, 0x19,
+     0x58, 0x60, 0x31, 0x22, 0xf1, 0xe6, 0x91, 0x4f,
+     0x84, 0xb7, 0xe8, 0xe9, 0x68, 0xae, 0x8b, 0x9e,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x35, },
+    {0x85, 0x8e, 0x6f, 0x9c, 0xc6, 0xc1, 0x2c, 0x31,
+     0xf5, 0xdf, 0x12, 0x4a, 0xa7, 0x77, 0x67, 0xb0,
+     0x5c, 0x8b, 0xc0, 0x21, 0xbd, 0x68, 0x3d, 0x2b,
+     0x55, 0x57, 0x15, 0x50, 0xfb, 0x92, 0x32, 0xc1,
+     0x5a, 0x3b, 0xc7, 0x67, 0x3a, 0x3a, 0x03, 0xb0,
+     0x25, 0x38, 0x24, 0xc5, 0x3d, 0x0f, 0xd1, 0x41,
+     0x1b, 0x1c, 0xab, 0xe2, 0xe1, 0x87, 0xfb, 0x87,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x36, },
+    {0xdb, 0x2f, 0x6b, 0xe6, 0x30, 0xe2, 0x46, 0xa5,
+     0xcf, 0x7d, 0x99, 0xb8, 0x51, 0x94, 0xb1, 0x23,
+     0xd4, 0x87, 0xe2, 0xd4, 0x66, 0xb9, 0x4b, 0x24,
+     0xa0, 0x3c, 0x3e, 0x28, 0xf0, 0xc5, 0xcf, 0xf7,
+     0xab, 0x68, 0x0d, 0x09, 0xee, 0x11, 0xda, 0xe8,
+     0x4e, 0x9c, 0x10, 0x72, 0xac, 0x48, 0xea, 0x2e,
+     0x74, 0x4b, 0x1b, 0x7f, 0x72, 0xfd, 0x46, 0x9e,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x37, },
+    {0x1f, 0x24, 0x83, 0xf8, 0x25, 0x72, 0x25, 0x1f,
+     0xca, 0x97, 0x5f, 0xea, 0x40, 0xdb, 0x82, 0x1d,
+     0xf8, 0xad, 0x82, 0xa3, 0xc0, 0x02, 0xee, 0x6c,
+     0x57, 0x11, 0x24, 0x08, 0x76, 0x05, 0x0f, 0x33,
+     0x48, 0xaf, 0x26, 0x64, 0xaa, 0xc3, 0xa8, 0xb0,
+     0x52, 0x81, 0x30, 0x4e, 0xbc, 0x7a, 0x79, 0x14,
+     0xc6, 0xad, 0x50, 0xa4, 0xb4, 0xea, 0xc3, 0x83,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x38, },
+    {0x31, 0xc4, 0x9a, 0xe7, 0x5b, 0xce, 0x78, 0x07,
+     0xcd, 0xff, 0x22, 0x05, 0x5d, 0x94, 0xee, 0x90,
+     0x21, 0xfe, 0xdb, 0xb5, 0xab, 0x51, 0xc5, 0x75,
+     0x26, 0xf0, 0x11, 0xaa, 0xd8, 0x17, 0x40, 0x0e,
+     0x8b, 0xa9, 0xca, 0x13, 0xa4, 0x5f, 0x36, 0x0e,
+     0x3d, 0x12, 0x1e, 0xaa, 0xeb, 0x39, 0xaf, 0x82,
+     0xd6, 0x00, 0x1c, 0x81, 0x86, 0xf5, 0xf8, 0x66,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x39, },
+    {0xae, 0x99, 0xfe, 0xeb, 0xb5, 0xd2, 0x69, 0x45,
+     0xb5, 0x48, 0x92, 0x09, 0x2a, 0x8a, 0xee, 0x02,
+     0x91, 0x29, 0x30, 0xfa, 0x41, 0xcd, 0x11, 0x4e,
+     0x40, 0x44, 0x73, 0x01, 0xfb, 0x7d, 0xa7, 0xf5,
+     0xf1, 0x3a, 0x43, 0xb8, 0x17, 0x74, 0x37, 0x3c,
+     0x87, 0x9c, 0xd3, 0x2d, 0x69, 0x34, 0xc0, 0x5f,
+     0xa7, 0x58, 0xee, 0xb1, 0x4f, 0xcf, 0xab, 0x38,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x3a, },
+    {0xdf, 0x1b, 0x1d, 0x66, 0xa5, 0x51, 0xd0, 0xd3,
+     0x1e, 0xff, 0x82, 0x25, 0x58, 0xb9, 0xd2, 0xcc,
+     0x75, 0xc2, 0x18, 0x02, 0x79, 0xfe, 0x0d, 0x08,
+     0xfd, 0x89, 0x6d, 0x04, 0x5c, 0x08, 0x0f, 0xc3,
+     0x52, 0x2f, 0x41, 0xbb, 0xb3, 0xf5, 0x5a, 0x97,
+     0xcf, 0xec, 0xf2, 0x1f, 0x88, 0x2c, 0xe8, 0xcb,
+     0xb1, 0xe5, 0x0c, 0xa6, 0xe6, 0x7e, 0x56, 0xdc,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x3b, },
+    {0x70, 0x6a, 0x46, 0xdc, 0x76, 0xdc, 0xb7, 0x67,
+     0x98, 0xe6, 0x0e, 0x6d, 0x89, 0x47, 0x47, 0x88,
+     0xd1, 0x6d, 0xc1, 0x80, 0x32, 0xd2, 0x68, 0xfd,
+     0x1a, 0x70, 0x4f, 0xa6, 0xe3, 0xd4, 0x89, 0x58,
+     0x43, 0xda, 0x18, 0x8f, 0xd5, 0x8f, 0xb0, 0x56,
+     0x79, 0x76, 0xd7, 0xb5, 0x03, 0x59, 0xd6, 0xb7,
+     0x85, 0x30, 0xc8, 0xf6, 0x2d, 0x1b, 0x17, 0x46,
+    },
+  },
+  {
+    {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x16, 0xa2,
+     0xe0, 0xb8, 0xf0, 0x3e, 0x13, 0xdd, 0x29, 0x45,
+     0x5c, 0x5c, 0x2a, 0x3c, },
+    {0xb7, 0x0e, 0x0c, 0xbd, 0x6b, 0xb4, 0xbf, 0x7f,
+     0x32, 0x13, 0x90, 0xb9, 0x4a, 0x03, 0xc1, 0xd3,
+     0x56, 0xc2, 0x11, 0x22, 0x34, 0x32, 0x80, 0xd6,
+     0x11, 0x5c, 0x1d, 0x21, 0x42, 0xc8, 0x9c, 0x77,
+     0x4a, 0x08, 0xdc, 0x04, 0xb3, 0xdd, 0x20, 0x19,
+     0x32, 0xbc, 0x8a, 0x5e, 0xa5, 0xf8, 0xb8, 0x9b,
+     0xbb, 0x2a, 0x7e, 0x66, 0x7a, 0xff, 0x81, 0xcd,
+    },
+  },
+};
+
+TEST(P224, ExternalToInternalAndBack) {
+  Point point;
+
+  EXPECT_TRUE(point.SetFromString(base::StringPiece(
+      reinterpret_cast<const char *>(kBasePointExternal),
+      sizeof(kBasePointExternal))));
+
+  const std::string external = point.ToString();
+
+  ASSERT_EQ(external.size(), 56u);
+  EXPECT_TRUE(memcmp(external.data(), kBasePointExternal,
+                     sizeof(kBasePointExternal)) == 0);
+}
+
+TEST(P224, ScalarBaseMult) {
+  Point point;
+
+  for (size_t i = 0; i < arraysize(kNISTTestVectors); i++) {
+    p224::ScalarBaseMult(kNISTTestVectors[i].scalar, &point);
+    const std::string external = point.ToString();
+    ASSERT_EQ(external.size(), 56u);
+    EXPECT_TRUE(memcmp(external.data(), kNISTTestVectors[i].affine,
+                       external.size()) == 0);
+  }
+}
+
+TEST(P224, Addition) {
+  Point a, b, minus_b, sum, a_again;
+
+  ASSERT_TRUE(a.SetFromString(base::StringPiece(
+      reinterpret_cast<const char *>(kNISTTestVectors[10].affine), 56)));
+  ASSERT_TRUE(b.SetFromString(base::StringPiece(
+      reinterpret_cast<const char *>(kNISTTestVectors[11].affine), 56)));
+
+  p224::Negate(b, &minus_b);
+  p224::Add(a, b, &sum);
+  EXPECT_TRUE(memcmp(&sum, &a, sizeof(sum)) != 0);
+  p224::Add(minus_b, sum, &a_again);
+  EXPECT_TRUE(a_again.ToString() == a.ToString());
+}
+
+TEST(P224, Infinity) {
+  char zeros[56];
+  memset(zeros, 0, sizeof(zeros));
+
+  // Test that x^0 = ∞.
+  Point a;
+  p224::ScalarBaseMult(reinterpret_cast<const uint8*>(zeros), &a);
+  EXPECT_TRUE(memcmp(zeros, a.ToString().data(), sizeof(zeros)) == 0);
+
+  // We shouldn't allow ∞ to be imported.
+  EXPECT_FALSE(a.SetFromString(std::string(zeros, sizeof(zeros))));
+}
+
+}  // namespace crypto
diff --git a/crypto/random.cc b/crypto/random.cc
new file mode 100644
index 0000000..a19bb1a
--- /dev/null
+++ b/crypto/random.cc
@@ -0,0 +1,19 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/random.h"
+
+#include "base/rand_util.h"
+
+namespace crypto {
+
+void RandBytes(void *bytes, size_t length) {
+  // It's OK to call base::RandBytes(), because it's already strongly random.
+  // But _other_ code should go through this function to ensure that code which
+  // needs secure randomness is easily discoverable.
+  base::RandBytes(bytes, length);
+}
+
+}  // namespace crypto
+
diff --git a/crypto/random.h b/crypto/random.h
new file mode 100644
index 0000000..002616b
--- /dev/null
+++ b/crypto/random.h
@@ -0,0 +1,21 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_RANDOM_H_
+#define CRYPTO_RANDOM_H_
+
+#include <stddef.h>
+
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Fills the given buffer with |length| random bytes of cryptographically
+// secure random numbers.
+// |length| must be positive.
+CRYPTO_EXPORT void RandBytes(void *bytes, size_t length);
+
+}
+
+#endif
diff --git a/crypto/random_unittest.cc b/crypto/random_unittest.cc
new file mode 100644
index 0000000..846d9b6
--- /dev/null
+++ b/crypto/random_unittest.cc
@@ -0,0 +1,27 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/random.h"
+
+#include "base/strings/string_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// Basic functionality tests. Does NOT test the security of the random data.
+
+// Ensures we don't have all trivial data, i.e. that the data is indeed random.
+// Currently, that means the bytes cannot be all the same (e.g. all zeros).
+bool IsTrivial(const std::string& bytes) {
+  for (size_t i = 0; i < bytes.size(); i++) {
+    if (bytes[i] != bytes[0]) {
+      return false;
+    }
+  }
+  return true;
+}
+
+TEST(RandBytes, RandBytes) {
+  std::string bytes(16, '\0');
+  crypto::RandBytes(WriteInto(&bytes, bytes.size()), bytes.size());
+  EXPECT_TRUE(!IsTrivial(bytes));
+}
diff --git a/crypto/rsa_private_key.cc b/crypto/rsa_private_key.cc
new file mode 100644
index 0000000..812d9fa
--- /dev/null
+++ b/crypto/rsa_private_key.cc
@@ -0,0 +1,384 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/rsa_private_key.h"
+
+#include <algorithm>
+#include <list>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_util.h"
+
+// This file manually encodes and decodes RSA private keys using PrivateKeyInfo
+// from PKCS #8 and RSAPrivateKey from PKCS #1. These structures are:
+//
+// PrivateKeyInfo ::= SEQUENCE {
+//   version Version,
+//   privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
+//   privateKey PrivateKey,
+//   attributes [0] IMPLICIT Attributes OPTIONAL
+// }
+//
+// RSAPrivateKey ::= SEQUENCE {
+//   version Version,
+//   modulus INTEGER,
+//   publicExponent INTEGER,
+//   privateExponent INTEGER,
+//   prime1 INTEGER,
+//   prime2 INTEGER,
+//   exponent1 INTEGER,
+//   exponent2 INTEGER,
+//   coefficient INTEGER
+// }
+
+namespace {
+// Helper for error handling during key import.
+#define READ_ASSERT(truth) \
+  if (!(truth)) { \
+    NOTREACHED(); \
+    return false; \
+  }
+}  // namespace
+
+namespace crypto {
+
+const uint8 PrivateKeyInfoCodec::kRsaAlgorithmIdentifier[] = {
+  0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x01,
+  0x05, 0x00
+};
+
+PrivateKeyInfoCodec::PrivateKeyInfoCodec(bool big_endian)
+    : big_endian_(big_endian) {}
+
+PrivateKeyInfoCodec::~PrivateKeyInfoCodec() {}
+
+bool PrivateKeyInfoCodec::Export(std::vector<uint8>* output) {
+  std::list<uint8> content;
+
+  // Version (always zero)
+  uint8 version = 0;
+
+  PrependInteger(coefficient_, &content);
+  PrependInteger(exponent2_, &content);
+  PrependInteger(exponent1_, &content);
+  PrependInteger(prime2_, &content);
+  PrependInteger(prime1_, &content);
+  PrependInteger(private_exponent_, &content);
+  PrependInteger(public_exponent_, &content);
+  PrependInteger(modulus_, &content);
+  PrependInteger(&version, 1, &content);
+  PrependTypeHeaderAndLength(kSequenceTag, content.size(), &content);
+  PrependTypeHeaderAndLength(kOctetStringTag, content.size(), &content);
+
+  // RSA algorithm OID
+  for (size_t i = sizeof(kRsaAlgorithmIdentifier); i > 0; --i)
+    content.push_front(kRsaAlgorithmIdentifier[i - 1]);
+
+  PrependInteger(&version, 1, &content);
+  PrependTypeHeaderAndLength(kSequenceTag, content.size(), &content);
+
+  // Copy everying into the output.
+  output->reserve(content.size());
+  output->assign(content.begin(), content.end());
+
+  return true;
+}
+
+bool PrivateKeyInfoCodec::ExportPublicKeyInfo(std::vector<uint8>* output) {
+  // Create a sequence with the modulus (n) and public exponent (e).
+  std::vector<uint8> bit_string;
+  if (!ExportPublicKey(&bit_string))
+    return false;
+
+  // Add the sequence as the contents of a bit string.
+  std::list<uint8> content;
+  PrependBitString(&bit_string[0], static_cast<int>(bit_string.size()),
+                   &content);
+
+  // Add the RSA algorithm OID.
+  for (size_t i = sizeof(kRsaAlgorithmIdentifier); i > 0; --i)
+    content.push_front(kRsaAlgorithmIdentifier[i - 1]);
+
+  // Finally, wrap everything in a sequence.
+  PrependTypeHeaderAndLength(kSequenceTag, content.size(), &content);
+
+  // Copy everything into the output.
+  output->reserve(content.size());
+  output->assign(content.begin(), content.end());
+
+  return true;
+}
+
+bool PrivateKeyInfoCodec::ExportPublicKey(std::vector<uint8>* output) {
+  // Create a sequence with the modulus (n) and public exponent (e).
+  std::list<uint8> content;
+  PrependInteger(&public_exponent_[0],
+                 static_cast<int>(public_exponent_.size()),
+                 &content);
+  PrependInteger(&modulus_[0],  static_cast<int>(modulus_.size()), &content);
+  PrependTypeHeaderAndLength(kSequenceTag, content.size(), &content);
+
+  // Copy everything into the output.
+  output->reserve(content.size());
+  output->assign(content.begin(), content.end());
+
+  return true;
+}
+
+bool PrivateKeyInfoCodec::Import(const std::vector<uint8>& input) {
+  if (input.empty()) {
+    return false;
+  }
+
+  // Parse the private key info up to the public key values, ignoring
+  // the subsequent private key values.
+  uint8* src = const_cast<uint8*>(&input.front());
+  uint8* end = src + input.size();
+  if (!ReadSequence(&src, end) ||
+      !ReadVersion(&src, end) ||
+      !ReadAlgorithmIdentifier(&src, end) ||
+      !ReadTypeHeaderAndLength(&src, end, kOctetStringTag, NULL) ||
+      !ReadSequence(&src, end) ||
+      !ReadVersion(&src, end) ||
+      !ReadInteger(&src, end, &modulus_))
+    return false;
+
+  int mod_size = modulus_.size();
+  READ_ASSERT(mod_size % 2 == 0);
+  int primes_size = mod_size / 2;
+
+  if (!ReadIntegerWithExpectedSize(&src, end, 4, &public_exponent_) ||
+      !ReadIntegerWithExpectedSize(&src, end, mod_size, &private_exponent_) ||
+      !ReadIntegerWithExpectedSize(&src, end, primes_size, &prime1_) ||
+      !ReadIntegerWithExpectedSize(&src, end, primes_size, &prime2_) ||
+      !ReadIntegerWithExpectedSize(&src, end, primes_size, &exponent1_) ||
+      !ReadIntegerWithExpectedSize(&src, end, primes_size, &exponent2_) ||
+      !ReadIntegerWithExpectedSize(&src, end, primes_size, &coefficient_))
+    return false;
+
+  READ_ASSERT(src == end);
+
+
+  return true;
+}
+
+void PrivateKeyInfoCodec::PrependInteger(const std::vector<uint8>& in,
+                                         std::list<uint8>* out) {
+  uint8* ptr = const_cast<uint8*>(&in.front());
+  PrependIntegerImpl(ptr, in.size(), out, big_endian_);
+}
+
+// Helper to prepend an ASN.1 integer.
+void PrivateKeyInfoCodec::PrependInteger(uint8* val,
+                                         int num_bytes,
+                                         std::list<uint8>* data) {
+  PrependIntegerImpl(val, num_bytes, data, big_endian_);
+}
+
+void PrivateKeyInfoCodec::PrependIntegerImpl(uint8* val,
+                                             int num_bytes,
+                                             std::list<uint8>* data,
+                                             bool big_endian) {
+ // Reverse input if little-endian.
+ std::vector<uint8> tmp;
+ if (!big_endian) {
+   tmp.assign(val, val + num_bytes);
+   std::reverse(tmp.begin(), tmp.end());
+   val = &tmp.front();
+ }
+
+  // ASN.1 integers are unpadded byte arrays, so skip any null padding bytes
+  // from the most-significant end of the integer.
+  int start = 0;
+  while (start < (num_bytes - 1) && val[start] == 0x00) {
+    start++;
+    num_bytes--;
+  }
+  PrependBytes(val, start, num_bytes, data);
+
+  // ASN.1 integers are signed. To encode a positive integer whose sign bit
+  // (the most significant bit) would otherwise be set and make the number
+  // negative, ASN.1 requires a leading null byte to force the integer to be
+  // positive.
+  uint8 front = data->front();
+  if ((front & 0x80) != 0) {
+    data->push_front(0x00);
+    num_bytes++;
+  }
+
+  PrependTypeHeaderAndLength(kIntegerTag, num_bytes, data);
+}
+
+bool PrivateKeyInfoCodec::ReadInteger(uint8** pos,
+                                      uint8* end,
+                                      std::vector<uint8>* out) {
+  return ReadIntegerImpl(pos, end, out, big_endian_);
+}
+
+bool PrivateKeyInfoCodec::ReadIntegerWithExpectedSize(uint8** pos,
+                                                      uint8* end,
+                                                      size_t expected_size,
+                                                      std::vector<uint8>* out) {
+  std::vector<uint8> temp;
+  if (!ReadIntegerImpl(pos, end, &temp, true))  // Big-Endian
+    return false;
+
+  int pad = expected_size - temp.size();
+  int index = 0;
+  if (out->size() == expected_size + 1) {
+    READ_ASSERT(out->front() == 0x00);
+    pad++;
+    index++;
+  } else {
+    READ_ASSERT(out->size() <= expected_size);
+  }
+
+  out->insert(out->end(), pad, 0x00);
+  out->insert(out->end(), temp.begin(), temp.end());
+
+  // Reverse output if little-endian.
+  if (!big_endian_)
+    std::reverse(out->begin(), out->end());
+  return true;
+}
+
+bool PrivateKeyInfoCodec::ReadIntegerImpl(uint8** pos,
+                                          uint8* end,
+                                          std::vector<uint8>* out,
+                                          bool big_endian) {
+  uint32 length = 0;
+  if (!ReadTypeHeaderAndLength(pos, end, kIntegerTag, &length) || !length)
+    return false;
+
+  // The first byte can be zero to force positiveness. We can ignore this.
+  if (**pos == 0x00) {
+    ++(*pos);
+    --length;
+  }
+
+  if (length)
+    out->insert(out->end(), *pos, (*pos) + length);
+
+  (*pos) += length;
+
+  // Reverse output if little-endian.
+  if (!big_endian)
+    std::reverse(out->begin(), out->end());
+  return true;
+}
+
+void PrivateKeyInfoCodec::PrependBytes(uint8* val,
+                                       int start,
+                                       int num_bytes,
+                                       std::list<uint8>* data) {
+  while (num_bytes > 0) {
+    --num_bytes;
+    data->push_front(val[start + num_bytes]);
+  }
+}
+
+void PrivateKeyInfoCodec::PrependLength(size_t size, std::list<uint8>* data) {
+  // The high bit is used to indicate whether additional octets are needed to
+  // represent the length.
+  if (size < 0x80) {
+    data->push_front(static_cast<uint8>(size));
+  } else {
+    uint8 num_bytes = 0;
+    while (size > 0) {
+      data->push_front(static_cast<uint8>(size & 0xFF));
+      size >>= 8;
+      num_bytes++;
+    }
+    CHECK_LE(num_bytes, 4);
+    data->push_front(0x80 | num_bytes);
+  }
+}
+
+void PrivateKeyInfoCodec::PrependTypeHeaderAndLength(uint8 type,
+                                                     uint32 length,
+                                                     std::list<uint8>* output) {
+  PrependLength(length, output);
+  output->push_front(type);
+}
+
+void PrivateKeyInfoCodec::PrependBitString(uint8* val,
+                                           int num_bytes,
+                                           std::list<uint8>* output) {
+  // Start with the data.
+  PrependBytes(val, 0, num_bytes, output);
+  // Zero unused bits.
+  output->push_front(0);
+  // Add the length.
+  PrependLength(num_bytes + 1, output);
+  // Finally, add the bit string tag.
+  output->push_front((uint8) kBitStringTag);
+}
+
+bool PrivateKeyInfoCodec::ReadLength(uint8** pos, uint8* end, uint32* result) {
+  READ_ASSERT(*pos < end);
+  int length = 0;
+
+  // If the MSB is not set, the length is just the byte itself.
+  if (!(**pos & 0x80)) {
+    length = **pos;
+    (*pos)++;
+  } else {
+    // Otherwise, the lower 7 indicate the length of the length.
+    int length_of_length = **pos & 0x7F;
+    READ_ASSERT(length_of_length <= 4);
+    (*pos)++;
+    READ_ASSERT(*pos + length_of_length < end);
+
+    length = 0;
+    for (int i = 0; i < length_of_length; ++i) {
+      length <<= 8;
+      length |= **pos;
+      (*pos)++;
+    }
+  }
+
+  READ_ASSERT(*pos + length <= end);
+  if (result) *result = length;
+  return true;
+}
+
+bool PrivateKeyInfoCodec::ReadTypeHeaderAndLength(uint8** pos,
+                                                  uint8* end,
+                                                  uint8 expected_tag,
+                                                  uint32* length) {
+  READ_ASSERT(*pos < end);
+  READ_ASSERT(**pos == expected_tag);
+  (*pos)++;
+
+  return ReadLength(pos, end, length);
+}
+
+bool PrivateKeyInfoCodec::ReadSequence(uint8** pos, uint8* end) {
+  return ReadTypeHeaderAndLength(pos, end, kSequenceTag, NULL);
+}
+
+bool PrivateKeyInfoCodec::ReadAlgorithmIdentifier(uint8** pos, uint8* end) {
+  READ_ASSERT(*pos + sizeof(kRsaAlgorithmIdentifier) < end);
+  READ_ASSERT(memcmp(*pos, kRsaAlgorithmIdentifier,
+                     sizeof(kRsaAlgorithmIdentifier)) == 0);
+  (*pos) += sizeof(kRsaAlgorithmIdentifier);
+  return true;
+}
+
+bool PrivateKeyInfoCodec::ReadVersion(uint8** pos, uint8* end) {
+  uint32 length = 0;
+  if (!ReadTypeHeaderAndLength(pos, end, kIntegerTag, &length))
+    return false;
+
+  // The version should be zero.
+  for (uint32 i = 0; i < length; ++i) {
+    READ_ASSERT(**pos == 0x00);
+    (*pos)++;
+  }
+
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/rsa_private_key.h b/crypto/rsa_private_key.h
new file mode 100644
index 0000000..221e341
--- /dev/null
+++ b/crypto/rsa_private_key.h
@@ -0,0 +1,293 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_RSA_PRIVATE_KEY_H_
+#define CRYPTO_RSA_PRIVATE_KEY_H_
+
+#include "build/build_config.h"
+
+#include <list>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+#if defined(USE_NSS)
+#include "base/gtest_prod_util.h"
+#endif
+
+#if defined(USE_OPENSSL)
+// Forward declaration for openssl/*.h
+typedef struct evp_pkey_st EVP_PKEY;
+#else
+// Forward declaration.
+typedef struct PK11SlotInfoStr PK11SlotInfo;
+typedef struct SECKEYPrivateKeyStr SECKEYPrivateKey;
+typedef struct SECKEYPublicKeyStr SECKEYPublicKey;
+#endif
+
+
+namespace crypto {
+
+// Used internally by RSAPrivateKey for serializing and deserializing
+// PKCS #8 PrivateKeyInfo and PublicKeyInfo.
+class PrivateKeyInfoCodec {
+ public:
+
+  // ASN.1 encoding of the AlgorithmIdentifier from PKCS #8.
+  static const uint8 kRsaAlgorithmIdentifier[];
+
+  // ASN.1 tags for some types we use.
+  static const uint8 kBitStringTag = 0x03;
+  static const uint8 kIntegerTag = 0x02;
+  static const uint8 kNullTag = 0x05;
+  static const uint8 kOctetStringTag = 0x04;
+  static const uint8 kSequenceTag = 0x30;
+
+  // |big_endian| here specifies the byte-significance of the integer components
+  // that will be parsed & serialized (modulus(), etc...) during Import(),
+  // Export() and ExportPublicKeyInfo() -- not the ASN.1 DER encoding of the
+  // PrivateKeyInfo/PublicKeyInfo (which is always big-endian).
+  explicit PrivateKeyInfoCodec(bool big_endian);
+
+  ~PrivateKeyInfoCodec();
+
+  // Exports the contents of the integer components to the ASN.1 DER encoding
+  // of the PrivateKeyInfo structure to |output|.
+  bool Export(std::vector<uint8>* output);
+
+  // Exports the contents of the integer components to the ASN.1 DER encoding
+  // of the PublicKeyInfo structure to |output|.
+  bool ExportPublicKeyInfo(std::vector<uint8>* output);
+
+  // Exports the contents of the integer components to the ASN.1 DER encoding
+  // of the RSAPublicKey structure to |output|.
+  bool ExportPublicKey(std::vector<uint8>* output);
+
+  // Parses the ASN.1 DER encoding of the PrivateKeyInfo structure in |input|
+  // and populates the integer components with |big_endian_| byte-significance.
+  // IMPORTANT NOTE: This is currently *not* security-approved for importing
+  // keys from unstrusted sources.
+  bool Import(const std::vector<uint8>& input);
+
+  // Accessors to the contents of the integer components of the PrivateKeyInfo
+  // structure.
+  std::vector<uint8>* modulus() { return &modulus_; };
+  std::vector<uint8>* public_exponent() { return &public_exponent_; };
+  std::vector<uint8>* private_exponent() { return &private_exponent_; };
+  std::vector<uint8>* prime1() { return &prime1_; };
+  std::vector<uint8>* prime2() { return &prime2_; };
+  std::vector<uint8>* exponent1() { return &exponent1_; };
+  std::vector<uint8>* exponent2() { return &exponent2_; };
+  std::vector<uint8>* coefficient() { return &coefficient_; };
+
+ private:
+  // Utility wrappers for PrependIntegerImpl that use the class's |big_endian_|
+  // value.
+  void PrependInteger(const std::vector<uint8>& in, std::list<uint8>* out);
+  void PrependInteger(uint8* val, int num_bytes, std::list<uint8>* data);
+
+  // Prepends the integer stored in |val| - |val + num_bytes| with |big_endian|
+  // byte-significance into |data| as an ASN.1 integer.
+  void PrependIntegerImpl(uint8* val,
+                          int num_bytes,
+                          std::list<uint8>* data,
+                          bool big_endian);
+
+  // Utility wrappers for ReadIntegerImpl that use the class's |big_endian_|
+  // value.
+  bool ReadInteger(uint8** pos, uint8* end, std::vector<uint8>* out);
+  bool ReadIntegerWithExpectedSize(uint8** pos,
+                                   uint8* end,
+                                   size_t expected_size,
+                                   std::vector<uint8>* out);
+
+  // Reads an ASN.1 integer from |pos|, and stores the result into |out| with
+  // |big_endian| byte-significance.
+  bool ReadIntegerImpl(uint8** pos,
+                       uint8* end,
+                       std::vector<uint8>* out,
+                       bool big_endian);
+
+  // Prepends the integer stored in |val|, starting a index |start|, for
+  // |num_bytes| bytes onto |data|.
+  void PrependBytes(uint8* val,
+                    int start,
+                    int num_bytes,
+                    std::list<uint8>* data);
+
+  // Helper to prepend an ASN.1 length field.
+  void PrependLength(size_t size, std::list<uint8>* data);
+
+  // Helper to prepend an ASN.1 type header.
+  void PrependTypeHeaderAndLength(uint8 type,
+                                  uint32 length,
+                                  std::list<uint8>* output);
+
+  // Helper to prepend an ASN.1 bit string
+  void PrependBitString(uint8* val, int num_bytes, std::list<uint8>* output);
+
+  // Read an ASN.1 length field. This also checks that the length does not
+  // extend beyond |end|.
+  bool ReadLength(uint8** pos, uint8* end, uint32* result);
+
+  // Read an ASN.1 type header and its length.
+  bool ReadTypeHeaderAndLength(uint8** pos,
+                               uint8* end,
+                               uint8 expected_tag,
+                               uint32* length);
+
+  // Read an ASN.1 sequence declaration. This consumes the type header and
+  // length field, but not the contents of the sequence.
+  bool ReadSequence(uint8** pos, uint8* end);
+
+  // Read the RSA AlgorithmIdentifier.
+  bool ReadAlgorithmIdentifier(uint8** pos, uint8* end);
+
+  // Read one of the two version fields in PrivateKeyInfo.
+  bool ReadVersion(uint8** pos, uint8* end);
+
+  // The byte-significance of the stored components (modulus, etc..).
+  bool big_endian_;
+
+  // Component integers of the PrivateKeyInfo
+  std::vector<uint8> modulus_;
+  std::vector<uint8> public_exponent_;
+  std::vector<uint8> private_exponent_;
+  std::vector<uint8> prime1_;
+  std::vector<uint8> prime2_;
+  std::vector<uint8> exponent1_;
+  std::vector<uint8> exponent2_;
+  std::vector<uint8> coefficient_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrivateKeyInfoCodec);
+};
+
+// Encapsulates an RSA private key. Can be used to generate new keys, export
+// keys to other formats, or to extract a public key.
+// TODO(hclam): This class should be ref-counted so it can be reused easily.
+class CRYPTO_EXPORT RSAPrivateKey {
+ public:
+  ~RSAPrivateKey();
+
+  // Create a new random instance. Can return NULL if initialization fails.
+  static RSAPrivateKey* Create(uint16 num_bits);
+
+  // Create a new instance by importing an existing private key. The format is
+  // an ASN.1-encoded PrivateKeyInfo block from PKCS #8. This can return NULL if
+  // initialization fails.
+  static RSAPrivateKey* CreateFromPrivateKeyInfo(
+      const std::vector<uint8>& input);
+
+#if defined(USE_NSS)
+  // Create a new random instance in |slot|. Can return NULL if initialization
+  // fails.  The created key is permanent and is not exportable in plaintext
+  // form.
+  static RSAPrivateKey* CreateSensitive(PK11SlotInfo* slot, uint16 num_bits);
+
+  // Create a new instance in |slot| by importing an existing private key. The
+  // format is an ASN.1-encoded PrivateKeyInfo block from PKCS #8. This can
+  // return NULL if initialization fails.
+  // The created key is permanent and is not exportable in plaintext form.
+  static RSAPrivateKey* CreateSensitiveFromPrivateKeyInfo(
+      PK11SlotInfo* slot,
+      const std::vector<uint8>& input);
+
+  // Create a new instance by referencing an existing private key
+  // structure.  Does not import the key.
+  static RSAPrivateKey* CreateFromKey(SECKEYPrivateKey* key);
+
+  // Import an existing public key, and then search for the private
+  // half in the key database. The format of the public key blob is is
+  // an X509 SubjectPublicKeyInfo block. This can return NULL if
+  // initialization fails or the private key cannot be found.  The
+  // caller takes ownership of the returned object, but nothing new is
+  // created in the key database.
+  static RSAPrivateKey* FindFromPublicKeyInfo(
+      const std::vector<uint8>& input);
+
+  // Import an existing public key, and then search for the private
+  // half in the slot specified by |slot|. The format of the public
+  // key blob is is an X509 SubjectPublicKeyInfo block. This can return
+  // NULL if initialization fails or the private key cannot be found.
+  // The caller takes ownership of the returned object, but nothing new
+  // is created in the slot.
+  static RSAPrivateKey* FindFromPublicKeyInfoInSlot(
+      const std::vector<uint8>& input,
+      PK11SlotInfo* slot);
+#elif defined(USE_OPENSSL)
+  // Create a new instance from an existing EVP_PKEY, taking a
+  // reference to it. |key| must be an RSA key. Returns NULL on
+  // failure.
+  static RSAPrivateKey* CreateFromKey(EVP_PKEY* key);
+
+#endif
+
+#if defined(USE_OPENSSL)
+  EVP_PKEY* key() { return key_; }
+#else
+  SECKEYPrivateKey* key() { return key_; }
+  SECKEYPublicKey* public_key() { return public_key_; }
+#endif
+
+  // Creates a copy of the object.
+  RSAPrivateKey* Copy() const;
+
+  // Exports the private key to a PKCS #1 PrivateKey block.
+  bool ExportPrivateKey(std::vector<uint8>* output) const;
+
+  // Exports the public key to an X509 SubjectPublicKeyInfo block.
+  bool ExportPublicKey(std::vector<uint8>* output) const;
+
+ private:
+#if defined(USE_NSS)
+  FRIEND_TEST_ALL_PREFIXES(RSAPrivateKeyNSSTest, FindFromPublicKey);
+  FRIEND_TEST_ALL_PREFIXES(RSAPrivateKeyNSSTest, FailedFindFromPublicKey);
+#endif
+
+  // Constructor is private. Use one of the Create*() or Find*()
+  // methods above instead.
+  RSAPrivateKey();
+
+#if !defined(USE_OPENSSL)
+  // Shared helper for Create() and CreateSensitive().
+  // TODO(cmasone): consider replacing |permanent| and |sensitive| with a
+  //                flags arg created by ORing together some enumerated values.
+  // Note: |permanent| is only supported when USE_NSS is defined.
+  static RSAPrivateKey* CreateWithParams(PK11SlotInfo* slot,
+                                         uint16 num_bits,
+                                         bool permanent,
+                                         bool sensitive);
+
+  // Shared helper for CreateFromPrivateKeyInfo() and
+  // CreateSensitiveFromPrivateKeyInfo().
+  // Note: |permanent| is only supported when USE_NSS is defined.
+  static RSAPrivateKey* CreateFromPrivateKeyInfoWithParams(
+      PK11SlotInfo* slot,
+      const std::vector<uint8>& input,
+      bool permanent,
+      bool sensitive);
+#endif
+
+#if defined(USE_NSS)
+  // Import an existing public key. The format of the public key blob
+  // is an X509 SubjectPublicKeyInfo block. This can return NULL if
+  // initialization fails.  The caller takes ownership of the returned
+  // object. Note that this method doesn't initialize the |key_| member.
+  static RSAPrivateKey* InitPublicPart(const std::vector<uint8>& input);
+#endif
+
+#if defined(USE_OPENSSL)
+  EVP_PKEY* key_;
+#else
+  SECKEYPrivateKey* key_;
+  SECKEYPublicKey* public_key_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(RSAPrivateKey);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_RSA_PRIVATE_KEY_H_
diff --git a/crypto/rsa_private_key_nss.cc b/crypto/rsa_private_key_nss.cc
new file mode 100644
index 0000000..078544d
--- /dev/null
+++ b/crypto/rsa_private_key_nss.cc
@@ -0,0 +1,321 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/rsa_private_key.h"
+
+#include <cryptohi.h>
+#include <keyhi.h>
+#include <pk11pub.h>
+#include <secmod.h>
+
+#include <list>
+
+#include "base/debug/leak_annotations.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_util.h"
+#include "crypto/nss_util.h"
+#include "crypto/nss_util_internal.h"
+#include "crypto/scoped_nss_types.h"
+
+// TODO(rafaelw): Consider using NSS's ASN.1 encoder.
+namespace {
+
+static bool ReadAttribute(SECKEYPrivateKey* key,
+                          CK_ATTRIBUTE_TYPE type,
+                          std::vector<uint8>* output) {
+  SECItem item;
+  SECStatus rv;
+  rv = PK11_ReadRawAttribute(PK11_TypePrivKey, key, type, &item);
+  if (rv != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+
+  output->assign(item.data, item.data + item.len);
+  SECITEM_FreeItem(&item, PR_FALSE);
+  return true;
+}
+
+#if defined(USE_NSS)
+struct PublicKeyInfoDeleter {
+  inline void operator()(CERTSubjectPublicKeyInfo* spki) {
+    SECKEY_DestroySubjectPublicKeyInfo(spki);
+  }
+};
+
+typedef scoped_ptr<CERTSubjectPublicKeyInfo, PublicKeyInfoDeleter>
+    ScopedPublicKeyInfo;
+
+// The function decodes RSA public key from the |input|.
+crypto::ScopedSECKEYPublicKey GetRSAPublicKey(const std::vector<uint8>& input) {
+  // First, decode and save the public key.
+  SECItem key_der;
+  key_der.type = siBuffer;
+  key_der.data = const_cast<unsigned char*>(&input[0]);
+  key_der.len = input.size();
+
+  ScopedPublicKeyInfo spki(SECKEY_DecodeDERSubjectPublicKeyInfo(&key_der));
+  if (!spki)
+    return crypto::ScopedSECKEYPublicKey();
+
+  crypto::ScopedSECKEYPublicKey result(SECKEY_ExtractPublicKey(spki.get()));
+
+  // Make sure the key is an RSA key.. If not, that's an error.
+  if (!result || result->keyType != rsaKey)
+    return crypto::ScopedSECKEYPublicKey();
+  return result.Pass();
+}
+#endif  // defined(USE_NSS)
+
+}  // namespace
+
+namespace crypto {
+
+RSAPrivateKey::~RSAPrivateKey() {
+  if (key_)
+    SECKEY_DestroyPrivateKey(key_);
+  if (public_key_)
+    SECKEY_DestroyPublicKey(public_key_);
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::Create(uint16 num_bits) {
+  EnsureNSSInit();
+
+  ScopedPK11Slot slot(PK11_GetInternalSlot());
+  return CreateWithParams(slot.get(),
+                          num_bits,
+                          false /* not permanent */,
+                          false /* not sensitive */);
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateFromPrivateKeyInfo(
+    const std::vector<uint8>& input) {
+  EnsureNSSInit();
+
+  ScopedPK11Slot slot(PK11_GetInternalSlot());
+  return CreateFromPrivateKeyInfoWithParams(
+      slot.get(),
+      input,
+      false /* not permanent */,
+      false /* not sensitive */);
+}
+
+#if defined(USE_NSS)
+// static
+RSAPrivateKey* RSAPrivateKey::CreateSensitive(PK11SlotInfo* slot,
+                                              uint16 num_bits) {
+  return CreateWithParams(slot,
+                          num_bits,
+                          true /* permanent */,
+                          true /* sensitive */);
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateSensitiveFromPrivateKeyInfo(
+    PK11SlotInfo* slot,
+    const std::vector<uint8>& input) {
+  return CreateFromPrivateKeyInfoWithParams(slot,
+                                            input,
+                                            true /* permanent */,
+                                            true /* sensitive */);
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateFromKey(SECKEYPrivateKey* key) {
+  DCHECK(key);
+  if (SECKEY_GetPrivateKeyType(key) != rsaKey)
+    return NULL;
+  RSAPrivateKey* copy = new RSAPrivateKey();
+  copy->key_ = SECKEY_CopyPrivateKey(key);
+  copy->public_key_ = SECKEY_ConvertToPublicKey(key);
+  if (!copy->key_ || !copy->public_key_) {
+    NOTREACHED();
+    delete copy;
+    return NULL;
+  }
+  return copy;
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::FindFromPublicKeyInfo(
+    const std::vector<uint8>& input) {
+  scoped_ptr<RSAPrivateKey> result(InitPublicPart(input));
+  if (!result)
+    return NULL;
+
+  ScopedSECItem ck_id(
+      PK11_MakeIDFromPubKey(&(result->public_key_->u.rsa.modulus)));
+  if (!ck_id.get()) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  // Search all slots in all modules for the key with the given ID.
+  AutoSECMODListReadLock auto_lock;
+  SECMODModuleList* head = SECMOD_GetDefaultModuleList();
+  for (SECMODModuleList* item = head; item != NULL; item = item->next) {
+    int slot_count = item->module->loaded ? item->module->slotCount : 0;
+    for (int i = 0; i < slot_count; i++) {
+      // Finally...Look for the key!
+      result->key_ = PK11_FindKeyByKeyID(item->module->slots[i],
+                                         ck_id.get(), NULL);
+      if (result->key_)
+        return result.release();
+    }
+  }
+
+  // We didn't find the key.
+  return NULL;
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::FindFromPublicKeyInfoInSlot(
+    const std::vector<uint8>& input,
+    PK11SlotInfo* slot) {
+  if (!slot)
+    return NULL;
+
+  scoped_ptr<RSAPrivateKey> result(InitPublicPart(input));
+  if (!result)
+    return NULL;
+
+  ScopedSECItem ck_id(
+      PK11_MakeIDFromPubKey(&(result->public_key_->u.rsa.modulus)));
+  if (!ck_id.get()) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  result->key_ = PK11_FindKeyByKeyID(slot, ck_id.get(), NULL);
+  if (!result->key_)
+    return NULL;
+  return result.release();
+}
+#endif
+
+RSAPrivateKey* RSAPrivateKey::Copy() const {
+  RSAPrivateKey* copy = new RSAPrivateKey();
+  copy->key_ = SECKEY_CopyPrivateKey(key_);
+  copy->public_key_ = SECKEY_CopyPublicKey(public_key_);
+  return copy;
+}
+
+bool RSAPrivateKey::ExportPrivateKey(std::vector<uint8>* output) const {
+  PrivateKeyInfoCodec private_key_info(true);
+
+  // Manually read the component attributes of the private key and build up
+  // the PrivateKeyInfo.
+  if (!ReadAttribute(key_, CKA_MODULUS, private_key_info.modulus()) ||
+      !ReadAttribute(key_, CKA_PUBLIC_EXPONENT,
+          private_key_info.public_exponent()) ||
+      !ReadAttribute(key_, CKA_PRIVATE_EXPONENT,
+          private_key_info.private_exponent()) ||
+      !ReadAttribute(key_, CKA_PRIME_1, private_key_info.prime1()) ||
+      !ReadAttribute(key_, CKA_PRIME_2, private_key_info.prime2()) ||
+      !ReadAttribute(key_, CKA_EXPONENT_1, private_key_info.exponent1()) ||
+      !ReadAttribute(key_, CKA_EXPONENT_2, private_key_info.exponent2()) ||
+      !ReadAttribute(key_, CKA_COEFFICIENT, private_key_info.coefficient())) {
+    NOTREACHED();
+    return false;
+  }
+
+  return private_key_info.Export(output);
+}
+
+bool RSAPrivateKey::ExportPublicKey(std::vector<uint8>* output) const {
+  ScopedSECItem der_pubkey(SECKEY_EncodeDERSubjectPublicKeyInfo(public_key_));
+  if (!der_pubkey.get()) {
+    NOTREACHED();
+    return false;
+  }
+
+  output->assign(der_pubkey->data, der_pubkey->data + der_pubkey->len);
+  return true;
+}
+
+RSAPrivateKey::RSAPrivateKey() : key_(NULL), public_key_(NULL) {
+  EnsureNSSInit();
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateWithParams(PK11SlotInfo* slot,
+                                               uint16 num_bits,
+                                               bool permanent,
+                                               bool sensitive) {
+  if (!slot)
+    return NULL;
+
+  scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
+
+  PK11RSAGenParams param;
+  param.keySizeInBits = num_bits;
+  param.pe = 65537L;
+  result->key_ = PK11_GenerateKeyPair(slot,
+                                      CKM_RSA_PKCS_KEY_PAIR_GEN,
+                                      &param,
+                                      &result->public_key_,
+                                      permanent,
+                                      sensitive,
+                                      NULL);
+  if (!result->key_)
+    return NULL;
+
+  return result.release();
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateFromPrivateKeyInfoWithParams(
+    PK11SlotInfo* slot,
+    const std::vector<uint8>& input,
+    bool permanent,
+    bool sensitive) {
+  if (!slot)
+    return NULL;
+
+  scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
+
+  SECItem der_private_key_info;
+  der_private_key_info.data = const_cast<unsigned char*>(&input.front());
+  der_private_key_info.len = input.size();
+  // Allow the private key to be used for key unwrapping, data decryption,
+  // and signature generation.
+  const unsigned int key_usage = KU_KEY_ENCIPHERMENT | KU_DATA_ENCIPHERMENT |
+                                 KU_DIGITAL_SIGNATURE;
+  SECStatus rv =  PK11_ImportDERPrivateKeyInfoAndReturnKey(
+      slot, &der_private_key_info, NULL, NULL, permanent, sensitive,
+      key_usage, &result->key_, NULL);
+  if (rv != SECSuccess) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  result->public_key_ = SECKEY_ConvertToPublicKey(result->key_);
+  if (!result->public_key_) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  return result.release();
+}
+
+#if defined(USE_NSS)
+// static
+RSAPrivateKey* RSAPrivateKey::InitPublicPart(const std::vector<uint8>& input) {
+  EnsureNSSInit();
+
+  scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey());
+  result->public_key_ = GetRSAPublicKey(input).release();
+  if (!result->public_key_) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  return result.release();
+}
+#endif  // defined(USE_NSS)
+
+}  // namespace crypto
diff --git a/crypto/rsa_private_key_nss_unittest.cc b/crypto/rsa_private_key_nss_unittest.cc
new file mode 100644
index 0000000..b91b431
--- /dev/null
+++ b/crypto/rsa_private_key_nss_unittest.cc
@@ -0,0 +1,60 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/rsa_private_key.h"
+
+#include <keyhi.h>
+#include <pk11pub.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "crypto/scoped_test_nss_db.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+class RSAPrivateKeyNSSTest : public testing::Test {
+ public:
+  RSAPrivateKeyNSSTest() {}
+  virtual ~RSAPrivateKeyNSSTest() {}
+
+ private:
+  ScopedTestNSSDB test_nssdb_;
+
+  DISALLOW_COPY_AND_ASSIGN(RSAPrivateKeyNSSTest);
+};
+
+TEST_F(RSAPrivateKeyNSSTest, FindFromPublicKey) {
+  // Create a keypair, which will put the keys in the user's NSSDB.
+  scoped_ptr<crypto::RSAPrivateKey> key_pair(RSAPrivateKey::Create(256));
+
+  std::vector<uint8> public_key;
+  ASSERT_TRUE(key_pair->ExportPublicKey(&public_key));
+
+  scoped_ptr<crypto::RSAPrivateKey> key_pair_2(
+      crypto::RSAPrivateKey::FindFromPublicKeyInfo(public_key));
+
+  EXPECT_EQ(key_pair->key_->pkcs11ID, key_pair_2->key_->pkcs11ID);
+}
+
+TEST_F(RSAPrivateKeyNSSTest, FailedFindFromPublicKey) {
+  // Create a keypair, which will put the keys in the user's NSSDB.
+  scoped_ptr<crypto::RSAPrivateKey> key_pair(RSAPrivateKey::Create(256));
+
+  std::vector<uint8> public_key;
+  ASSERT_TRUE(key_pair->ExportPublicKey(&public_key));
+
+  // Remove the keys from the DB, and make sure we can't find them again.
+  if (key_pair->key_) {
+    PK11_DestroyTokenObject(key_pair->key_->pkcs11Slot,
+                            key_pair->key_->pkcs11ID);
+  }
+  if (key_pair->public_key_) {
+    PK11_DestroyTokenObject(key_pair->public_key_->pkcs11Slot,
+                            key_pair->public_key_->pkcs11ID);
+  }
+
+  EXPECT_EQ(NULL, crypto::RSAPrivateKey::FindFromPublicKeyInfo(public_key));
+}
+
+}  // namespace crypto
diff --git a/crypto/rsa_private_key_openssl.cc b/crypto/rsa_private_key_openssl.cc
new file mode 100644
index 0000000..053c4a2
--- /dev/null
+++ b/crypto/rsa_private_key_openssl.cc
@@ -0,0 +1,139 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/rsa_private_key.h"
+
+#include <openssl/bio.h>
+#include <openssl/bn.h>
+#include <openssl/evp.h>
+#include <openssl/pkcs12.h>
+#include <openssl/rsa.h>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/openssl_util.h"
+#include "crypto/scoped_openssl_types.h"
+
+namespace crypto {
+
+namespace {
+
+// Function pointer definition, for injecting the required key export function
+// into ExportKey, below. The supplied function should export EVP_PKEY into
+// the supplied BIO, returning 1 on success or 0 on failure.
+typedef int (ExportFunction)(BIO*, EVP_PKEY*);
+
+// Helper to export |key| into |output| via the specified ExportFunction.
+bool ExportKey(EVP_PKEY* key,
+               ExportFunction export_fn,
+               std::vector<uint8>* output) {
+  if (!key)
+    return false;
+
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  ScopedBIO bio(BIO_new(BIO_s_mem()));
+
+  int res = export_fn(bio.get(), key);
+  if (!res)
+    return false;
+
+  char* data = NULL;
+  long len = BIO_get_mem_data(bio.get(), &data);
+  if (!data || len < 0)
+    return false;
+
+  output->assign(data, data + len);
+  return true;
+}
+
+}  // namespace
+
+// static
+RSAPrivateKey* RSAPrivateKey::Create(uint16 num_bits) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+
+  ScopedRSA rsa_key(RSA_new());
+  ScopedBIGNUM bn(BN_new());
+  if (!rsa_key.get() || !bn.get() || !BN_set_word(bn.get(), 65537L))
+    return NULL;
+
+  if (!RSA_generate_key_ex(rsa_key.get(), num_bits, bn.get(), NULL))
+    return NULL;
+
+  scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
+  result->key_ = EVP_PKEY_new();
+  if (!result->key_ || !EVP_PKEY_set1_RSA(result->key_, rsa_key.get()))
+    return NULL;
+
+  return result.release();
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateFromPrivateKeyInfo(
+    const std::vector<uint8>& input) {
+  if (input.empty())
+    return NULL;
+
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  // BIO_new_mem_buf is not const aware, but it does not modify the buffer.
+  char* data = reinterpret_cast<char*>(const_cast<uint8*>(&input[0]));
+  ScopedBIO bio(BIO_new_mem_buf(data, input.size()));
+  if (!bio.get())
+    return NULL;
+
+  // Importing is a little more involved than exporting, as we must first
+  // PKCS#8 decode the input, and then import the EVP_PKEY from Private Key
+  // Info structure returned.
+  ScopedOpenSSL<PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_free>::Type p8inf(
+      d2i_PKCS8_PRIV_KEY_INFO_bio(bio.get(), NULL));
+  if (!p8inf.get())
+    return NULL;
+
+  scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
+  result->key_ = EVP_PKCS82PKEY(p8inf.get());
+  if (!result->key_)
+    return NULL;
+
+  return result.release();
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateFromKey(EVP_PKEY* key) {
+  DCHECK(key);
+  if (EVP_PKEY_type(key->type) != EVP_PKEY_RSA)
+    return NULL;
+  RSAPrivateKey* copy = new RSAPrivateKey();
+  copy->key_ = EVP_PKEY_dup(key);
+  return copy;
+}
+
+RSAPrivateKey::RSAPrivateKey()
+    : key_(NULL) {
+}
+
+RSAPrivateKey::~RSAPrivateKey() {
+  if (key_)
+    EVP_PKEY_free(key_);
+}
+
+RSAPrivateKey* RSAPrivateKey::Copy() const {
+  scoped_ptr<RSAPrivateKey> copy(new RSAPrivateKey());
+  ScopedRSA rsa(EVP_PKEY_get1_RSA(key_));
+  if (!rsa)
+    return NULL;
+  copy->key_ = EVP_PKEY_new();
+  if (!EVP_PKEY_set1_RSA(copy->key_, rsa.get()))
+    return NULL;
+  return copy.release();
+}
+
+bool RSAPrivateKey::ExportPrivateKey(std::vector<uint8>* output) const {
+  return ExportKey(key_, i2d_PKCS8PrivateKeyInfo_bio, output);
+}
+
+bool RSAPrivateKey::ExportPublicKey(std::vector<uint8>* output) const {
+  return ExportKey(key_, i2d_PUBKEY_bio, output);
+}
+
+}  // namespace crypto
diff --git a/crypto/rsa_private_key_unittest.cc b/crypto/rsa_private_key_unittest.cc
new file mode 100644
index 0000000..d53d502
--- /dev/null
+++ b/crypto/rsa_private_key_unittest.cc
@@ -0,0 +1,432 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/rsa_private_key.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+const uint8 kTestPrivateKeyInfo[] = {
+  0x30, 0x82, 0x02, 0x78, 0x02, 0x01, 0x00, 0x30,
+  0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+  0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
+  0x02, 0x62, 0x30, 0x82, 0x02, 0x5e, 0x02, 0x01,
+  0x00, 0x02, 0x81, 0x81, 0x00, 0xb8, 0x7f, 0x2b,
+  0x20, 0xdc, 0x7c, 0x9b, 0x0c, 0xdc, 0x51, 0x61,
+  0x99, 0x0d, 0x36, 0x0f, 0xd4, 0x66, 0x88, 0x08,
+  0x55, 0x84, 0xd5, 0x3a, 0xbf, 0x2b, 0xa4, 0x64,
+  0x85, 0x7b, 0x0c, 0x04, 0x13, 0x3f, 0x8d, 0xf4,
+  0xbc, 0x38, 0x0d, 0x49, 0xfe, 0x6b, 0xc4, 0x5a,
+  0xb0, 0x40, 0x53, 0x3a, 0xd7, 0x66, 0x09, 0x0f,
+  0x9e, 0x36, 0x74, 0x30, 0xda, 0x8a, 0x31, 0x4f,
+  0x1f, 0x14, 0x50, 0xd7, 0xc7, 0x20, 0x94, 0x17,
+  0xde, 0x4e, 0xb9, 0x57, 0x5e, 0x7e, 0x0a, 0xe5,
+  0xb2, 0x65, 0x7a, 0x89, 0x4e, 0xb6, 0x47, 0xff,
+  0x1c, 0xbd, 0xb7, 0x38, 0x13, 0xaf, 0x47, 0x85,
+  0x84, 0x32, 0x33, 0xf3, 0x17, 0x49, 0xbf, 0xe9,
+  0x96, 0xd0, 0xd6, 0x14, 0x6f, 0x13, 0x8d, 0xc5,
+  0xfc, 0x2c, 0x72, 0xba, 0xac, 0xea, 0x7e, 0x18,
+  0x53, 0x56, 0xa6, 0x83, 0xa2, 0xce, 0x93, 0x93,
+  0xe7, 0x1f, 0x0f, 0xe6, 0x0f, 0x02, 0x03, 0x01,
+  0x00, 0x01, 0x02, 0x81, 0x80, 0x03, 0x61, 0x89,
+  0x37, 0xcb, 0xf2, 0x98, 0xa0, 0xce, 0xb4, 0xcb,
+  0x16, 0x13, 0xf0, 0xe6, 0xaf, 0x5c, 0xc5, 0xa7,
+  0x69, 0x71, 0xca, 0xba, 0x8d, 0xe0, 0x4d, 0xdd,
+  0xed, 0xb8, 0x48, 0x8b, 0x16, 0x93, 0x36, 0x95,
+  0xc2, 0x91, 0x40, 0x65, 0x17, 0xbd, 0x7f, 0xd6,
+  0xad, 0x9e, 0x30, 0x28, 0x46, 0xe4, 0x3e, 0xcc,
+  0x43, 0x78, 0xf9, 0xfe, 0x1f, 0x33, 0x23, 0x1e,
+  0x31, 0x12, 0x9d, 0x3c, 0xa7, 0x08, 0x82, 0x7b,
+  0x7d, 0x25, 0x4e, 0x5e, 0x19, 0xa8, 0x9b, 0xed,
+  0x86, 0xb2, 0xcb, 0x3c, 0xfe, 0x4e, 0xa1, 0xfa,
+  0x62, 0x87, 0x3a, 0x17, 0xf7, 0x60, 0xec, 0x38,
+  0x29, 0xe8, 0x4f, 0x34, 0x9f, 0x76, 0x9d, 0xee,
+  0xa3, 0xf6, 0x85, 0x6b, 0x84, 0x43, 0xc9, 0x1e,
+  0x01, 0xff, 0xfd, 0xd0, 0x29, 0x4c, 0xfa, 0x8e,
+  0x57, 0x0c, 0xc0, 0x71, 0xa5, 0xbb, 0x88, 0x46,
+  0x29, 0x5c, 0xc0, 0x4f, 0x01, 0x02, 0x41, 0x00,
+  0xf5, 0x83, 0xa4, 0x64, 0x4a, 0xf2, 0xdd, 0x8c,
+  0x2c, 0xed, 0xa8, 0xd5, 0x60, 0x5a, 0xe4, 0xc7,
+  0xcc, 0x61, 0xcd, 0x38, 0x42, 0x20, 0xd3, 0x82,
+  0x18, 0xf2, 0x35, 0x00, 0x72, 0x2d, 0xf7, 0x89,
+  0x80, 0x67, 0xb5, 0x93, 0x05, 0x5f, 0xdd, 0x42,
+  0xba, 0x16, 0x1a, 0xea, 0x15, 0xc6, 0xf0, 0xb8,
+  0x8c, 0xbc, 0xbf, 0x54, 0x9e, 0xf1, 0xc1, 0xb2,
+  0xb3, 0x8b, 0xb6, 0x26, 0x02, 0x30, 0xc4, 0x81,
+  0x02, 0x41, 0x00, 0xc0, 0x60, 0x62, 0x80, 0xe1,
+  0x22, 0x78, 0xf6, 0x9d, 0x83, 0x18, 0xeb, 0x72,
+  0x45, 0xd7, 0xc8, 0x01, 0x7f, 0xa9, 0xca, 0x8f,
+  0x7d, 0xd6, 0xb8, 0x31, 0x2b, 0x84, 0x7f, 0x62,
+  0xd9, 0xa9, 0x22, 0x17, 0x7d, 0x06, 0x35, 0x6c,
+  0xf3, 0xc1, 0x94, 0x17, 0x85, 0x5a, 0xaf, 0x9c,
+  0x5c, 0x09, 0x3c, 0xcf, 0x2f, 0x44, 0x9d, 0xb6,
+  0x52, 0x68, 0x5f, 0xf9, 0x59, 0xc8, 0x84, 0x2b,
+  0x39, 0x22, 0x8f, 0x02, 0x41, 0x00, 0xb2, 0x04,
+  0xe2, 0x0e, 0x56, 0xca, 0x03, 0x1a, 0xc0, 0xf9,
+  0x12, 0x92, 0xa5, 0x6b, 0x42, 0xb8, 0x1c, 0xda,
+  0x4d, 0x93, 0x9d, 0x5f, 0x6f, 0xfd, 0xc5, 0x58,
+  0xda, 0x55, 0x98, 0x74, 0xfc, 0x28, 0x17, 0x93,
+  0x1b, 0x75, 0x9f, 0x50, 0x03, 0x7f, 0x7e, 0xae,
+  0xc8, 0x95, 0x33, 0x75, 0x2c, 0xd6, 0xa4, 0x35,
+  0xb8, 0x06, 0x03, 0xba, 0x08, 0x59, 0x2b, 0x17,
+  0x02, 0xdc, 0x4c, 0x7a, 0x50, 0x01, 0x02, 0x41,
+  0x00, 0x9d, 0xdb, 0x39, 0x59, 0x09, 0xe4, 0x30,
+  0xa0, 0x24, 0xf5, 0xdb, 0x2f, 0xf0, 0x2f, 0xf1,
+  0x75, 0x74, 0x0d, 0x5e, 0xb5, 0x11, 0x73, 0xb0,
+  0x0a, 0xaa, 0x86, 0x4c, 0x0d, 0xff, 0x7e, 0x1d,
+  0xb4, 0x14, 0xd4, 0x09, 0x91, 0x33, 0x5a, 0xfd,
+  0xa0, 0x58, 0x80, 0x9b, 0xbe, 0x78, 0x2e, 0x69,
+  0x82, 0x15, 0x7c, 0x72, 0xf0, 0x7b, 0x18, 0x39,
+  0xff, 0x6e, 0xeb, 0xc6, 0x86, 0xf5, 0xb4, 0xc7,
+  0x6f, 0x02, 0x41, 0x00, 0x8d, 0x1a, 0x37, 0x0f,
+  0x76, 0xc4, 0x82, 0xfa, 0x5c, 0xc3, 0x79, 0x35,
+  0x3e, 0x70, 0x8a, 0xbf, 0x27, 0x49, 0xb0, 0x99,
+  0x63, 0xcb, 0x77, 0x5f, 0xa8, 0x82, 0x65, 0xf6,
+  0x03, 0x52, 0x51, 0xf1, 0xae, 0x2e, 0x05, 0xb3,
+  0xc6, 0xa4, 0x92, 0xd1, 0xce, 0x6c, 0x72, 0xfb,
+  0x21, 0xb3, 0x02, 0x87, 0xe4, 0xfd, 0x61, 0xca,
+  0x00, 0x42, 0x19, 0xf0, 0xda, 0x5a, 0x53, 0xe3,
+  0xb1, 0xc5, 0x15, 0xf3
+};
+
+}  // namespace
+
+// Generate random private keys with two different sizes. Reimport, then
+// export them again. We should get back the same exact bytes.
+TEST(RSAPrivateKeyUnitTest, InitRandomTest) {
+  scoped_ptr<crypto::RSAPrivateKey> keypair1(
+      crypto::RSAPrivateKey::Create(1024));
+  scoped_ptr<crypto::RSAPrivateKey> keypair2(
+      crypto::RSAPrivateKey::Create(2048));
+  ASSERT_TRUE(keypair1.get());
+  ASSERT_TRUE(keypair2.get());
+
+  std::vector<uint8> privkey1;
+  std::vector<uint8> privkey2;
+  std::vector<uint8> pubkey1;
+  std::vector<uint8> pubkey2;
+
+  ASSERT_TRUE(keypair1->ExportPrivateKey(&privkey1));
+  ASSERT_TRUE(keypair2->ExportPrivateKey(&privkey2));
+  ASSERT_TRUE(keypair1->ExportPublicKey(&pubkey1));
+  ASSERT_TRUE(keypair2->ExportPublicKey(&pubkey2));
+
+  scoped_ptr<crypto::RSAPrivateKey> keypair3(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(privkey1));
+  scoped_ptr<crypto::RSAPrivateKey> keypair4(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(privkey2));
+  ASSERT_TRUE(keypair3.get());
+  ASSERT_TRUE(keypair4.get());
+
+  std::vector<uint8> privkey3;
+  std::vector<uint8> privkey4;
+  ASSERT_TRUE(keypair3->ExportPrivateKey(&privkey3));
+  ASSERT_TRUE(keypair4->ExportPrivateKey(&privkey4));
+
+  ASSERT_EQ(privkey1.size(), privkey3.size());
+  ASSERT_EQ(privkey2.size(), privkey4.size());
+  ASSERT_TRUE(0 == memcmp(&privkey1.front(), &privkey3.front(),
+                          privkey1.size()));
+  ASSERT_TRUE(0 == memcmp(&privkey2.front(), &privkey4.front(),
+                          privkey2.size()));
+}
+
+// Test Copy() method.
+TEST(RSAPrivateKeyUnitTest, CopyTest) {
+  std::vector<uint8> input(
+      kTestPrivateKeyInfo, kTestPrivateKeyInfo + sizeof(kTestPrivateKeyInfo));
+
+  scoped_ptr<crypto::RSAPrivateKey> key(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(input));
+
+  scoped_ptr<crypto::RSAPrivateKey> key_copy(key->Copy());
+  ASSERT_TRUE(key_copy.get());
+
+  std::vector<uint8> privkey_copy;
+  ASSERT_TRUE(key_copy->ExportPrivateKey(&privkey_copy));
+  ASSERT_EQ(input, privkey_copy);
+}
+
+
+// Verify that generated public keys look good. This test data was generated
+// with the openssl command line tool.
+TEST(RSAPrivateKeyUnitTest, PublicKeyTest) {
+  const uint8 expected_public_key_info[] = {
+    0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a,
+    0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
+    0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81,
+    0x89, 0x02, 0x81, 0x81, 0x00, 0xb8, 0x7f, 0x2b,
+    0x20, 0xdc, 0x7c, 0x9b, 0x0c, 0xdc, 0x51, 0x61,
+    0x99, 0x0d, 0x36, 0x0f, 0xd4, 0x66, 0x88, 0x08,
+    0x55, 0x84, 0xd5, 0x3a, 0xbf, 0x2b, 0xa4, 0x64,
+    0x85, 0x7b, 0x0c, 0x04, 0x13, 0x3f, 0x8d, 0xf4,
+    0xbc, 0x38, 0x0d, 0x49, 0xfe, 0x6b, 0xc4, 0x5a,
+    0xb0, 0x40, 0x53, 0x3a, 0xd7, 0x66, 0x09, 0x0f,
+    0x9e, 0x36, 0x74, 0x30, 0xda, 0x8a, 0x31, 0x4f,
+    0x1f, 0x14, 0x50, 0xd7, 0xc7, 0x20, 0x94, 0x17,
+    0xde, 0x4e, 0xb9, 0x57, 0x5e, 0x7e, 0x0a, 0xe5,
+    0xb2, 0x65, 0x7a, 0x89, 0x4e, 0xb6, 0x47, 0xff,
+    0x1c, 0xbd, 0xb7, 0x38, 0x13, 0xaf, 0x47, 0x85,
+    0x84, 0x32, 0x33, 0xf3, 0x17, 0x49, 0xbf, 0xe9,
+    0x96, 0xd0, 0xd6, 0x14, 0x6f, 0x13, 0x8d, 0xc5,
+    0xfc, 0x2c, 0x72, 0xba, 0xac, 0xea, 0x7e, 0x18,
+    0x53, 0x56, 0xa6, 0x83, 0xa2, 0xce, 0x93, 0x93,
+    0xe7, 0x1f, 0x0f, 0xe6, 0x0f, 0x02, 0x03, 0x01,
+    0x00, 0x01
+  };
+
+  std::vector<uint8> input(
+      kTestPrivateKeyInfo, kTestPrivateKeyInfo + sizeof(kTestPrivateKeyInfo));
+
+  scoped_ptr<crypto::RSAPrivateKey> key(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(input));
+  ASSERT_TRUE(key.get());
+
+  std::vector<uint8> output;
+  ASSERT_TRUE(key->ExportPublicKey(&output));
+
+  ASSERT_TRUE(
+      memcmp(expected_public_key_info, &output.front(), output.size()) == 0);
+}
+
+// These two test keys each contain an integer that has 0x00 for its most
+// significant byte. When encoded as ASN.1, this byte is dropped and there are
+// two interesting sub-cases. When the sign bit of the integer is set, an extra
+// null byte is added back to force the encoded value to be positive. When the
+// sign bit is not set, the encoded integer is just left shorter than usual.
+// See also: http://code.google.com/p/chromium/issues/detail?id=14877.
+//
+// Before we were handling this correctly, we would see one of two failures:
+// * RSAPrivateKey::CreateFromPrivateKeyInfo would return null because the
+//   underlying windows API failed to import the key.
+// * The import would succeed, but incorrectly interpret the data. On export,
+//   the key would contain different values.
+//
+// This test case verifies these two failures modes don't occur.
+TEST(RSAPrivateKeyUnitTest, ShortIntegers) {
+  const uint8 short_integer_with_high_bit[] = {
+    0x30, 0x82, 0x02, 0x77, 0x02, 0x01, 0x00, 0x30,
+    0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+    0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
+    0x02, 0x61, 0x30, 0x82, 0x02, 0x5d, 0x02, 0x01,
+    0x00, 0x02, 0x81, 0x81, 0x00, 0x92, 0x59, 0x32,
+    0x7d, 0x8e, 0xaf, 0x2e, 0xd5, 0xb2, 0x5c, 0x67,
+    0xc8, 0x7d, 0x48, 0xb7, 0x84, 0x12, 0xd0, 0x76,
+    0xda, 0xe1, 0xa3, 0x1e, 0x40, 0x01, 0x14, 0x5c,
+    0xef, 0x26, 0x6e, 0x28, 0xa2, 0xf7, 0xa5, 0xb4,
+    0x02, 0x37, 0xd0, 0x53, 0x10, 0xcb, 0x7c, 0x6a,
+    0xf4, 0x53, 0x9f, 0xb8, 0xe0, 0x83, 0x93, 0xd1,
+    0x19, 0xd8, 0x28, 0xd1, 0xd1, 0xd8, 0x87, 0x8f,
+    0x92, 0xfd, 0x73, 0xc0, 0x4d, 0x3e, 0x07, 0x22,
+    0x1f, 0xc1, 0x20, 0xb0, 0x70, 0xb2, 0x3b, 0xea,
+    0xb1, 0xe5, 0x0a, 0xfd, 0x56, 0x49, 0x5e, 0x39,
+    0x90, 0x91, 0xce, 0x04, 0x83, 0x29, 0xaa, 0xfd,
+    0x12, 0xa4, 0x42, 0x26, 0x6c, 0x6e, 0x79, 0x70,
+    0x77, 0x03, 0xb2, 0x07, 0x01, 0x3d, 0x85, 0x81,
+    0x95, 0x9e, 0xda, 0x5a, 0xa3, 0xf4, 0x2d, 0x38,
+    0x04, 0x58, 0xf5, 0x6b, 0xc9, 0xf1, 0xb5, 0x65,
+    0xfe, 0x66, 0x0d, 0xa2, 0xd5, 0x02, 0x03, 0x01,
+    0x00, 0x01, 0x02, 0x81, 0x80, 0x5e, 0x01, 0x5f,
+    0xb6, 0x59, 0x1d, 0xdc, 0x36, 0xb6, 0x60, 0x36,
+    0xe6, 0x08, 0xdb, 0xd9, 0xcd, 0xc3, 0x8c, 0x16,
+    0x9c, 0x98, 0x8d, 0x7f, 0xd3, 0xdb, 0x1d, 0xaa,
+    0x68, 0x8f, 0xc5, 0xf8, 0xe2, 0x5d, 0xb3, 0x19,
+    0xc2, 0xc6, 0xf9, 0x51, 0x32, 0x1b, 0x93, 0x6a,
+    0xdc, 0x50, 0x8e, 0xeb, 0x61, 0x84, 0x03, 0x42,
+    0x30, 0x98, 0xb1, 0xf7, 0xbd, 0x14, 0x9a, 0x57,
+    0x36, 0x33, 0x09, 0xd4, 0x3e, 0x90, 0xda, 0xef,
+    0x09, 0x6e, 0xef, 0x49, 0xb6, 0x60, 0x68, 0x5e,
+    0x54, 0x17, 0x25, 0x5b, 0x37, 0xe3, 0x35, 0x63,
+    0x5b, 0x60, 0x3c, 0xbd, 0x50, 0xdf, 0x46, 0x43,
+    0x08, 0xa4, 0x71, 0x21, 0xf1, 0x30, 0x71, 0xdc,
+    0xda, 0xd7, 0x6f, 0xd2, 0x18, 0xbd, 0x39, 0xf1,
+    0xe1, 0xbe, 0xa8, 0x8d, 0x62, 0xdf, 0xa2, 0x3e,
+    0xb6, 0x15, 0x26, 0xb6, 0x57, 0xbd, 0x63, 0xdb,
+    0xc1, 0x91, 0xec, 0xb8, 0x01, 0x02, 0x41, 0x00,
+    0xc6, 0x1a, 0x06, 0x48, 0xf2, 0x12, 0x1c, 0x9f,
+    0x74, 0x20, 0x5c, 0x85, 0xa2, 0xda, 0xe5, 0x62,
+    0x96, 0x8d, 0x22, 0x7b, 0x78, 0x73, 0xea, 0xbb,
+    0x9f, 0x59, 0x42, 0x13, 0x15, 0xc8, 0x11, 0x50,
+    0x6c, 0x55, 0xf6, 0xdf, 0x8b, 0xfe, 0xc7, 0xdd,
+    0xa8, 0xca, 0x54, 0x41, 0xe8, 0xce, 0xbe, 0x7d,
+    0xbd, 0xe2, 0x13, 0x4b, 0x5b, 0x61, 0xeb, 0x69,
+    0x6c, 0xb1, 0x9b, 0x28, 0x68, 0x5b, 0xd6, 0x01,
+    0x02, 0x41, 0x00, 0xbd, 0x1e, 0xfe, 0x51, 0x99,
+    0xb6, 0xe3, 0x84, 0xfe, 0xf1, 0x9e, 0xfd, 0x9c,
+    0xe7, 0x86, 0x43, 0x68, 0x7f, 0x2f, 0x6a, 0x2a,
+    0x4c, 0xae, 0xa6, 0x41, 0x1c, 0xf0, 0x10, 0x37,
+    0x54, 0x23, 0xba, 0x05, 0x0d, 0x18, 0x27, 0x8d,
+    0xb8, 0xe4, 0x8f, 0xf2, 0x25, 0x73, 0x8a, 0xd7,
+    0x05, 0x98, 0x6b, 0x3d, 0x55, 0xb7, 0x6f, 0x7c,
+    0xec, 0x77, 0x61, 0x54, 0x7b, 0xb6, 0x6b, 0x31,
+    0xec, 0x94, 0xd5, 0x02, 0x41, 0x00, 0x90, 0xa2,
+    0xa5, 0x9e, 0x12, 0xa7, 0x68, 0xa0, 0x7e, 0xdf,
+    0xb5, 0xcd, 0x98, 0x26, 0xab, 0xbd, 0xbc, 0x5f,
+    0xd5, 0x22, 0x42, 0xc2, 0x97, 0x4a, 0x5f, 0x40,
+    0x82, 0xfe, 0x7e, 0x33, 0xb1, 0x78, 0x7f, 0x70,
+    0x90, 0x2b, 0x8d, 0x01, 0xfb, 0x18, 0xfa, 0x48,
+    0xa7, 0x15, 0xec, 0x0d, 0x2e, 0x85, 0x8d, 0xe2,
+    0x86, 0xe5, 0xc9, 0x15, 0x88, 0x14, 0x53, 0xd8,
+    0xa4, 0x88, 0xef, 0x10, 0xc6, 0x01, 0x02, 0x41,
+    0x00, 0xba, 0xe4, 0xaf, 0x14, 0xfa, 0xdf, 0xf6,
+    0xd5, 0xce, 0x8f, 0xfe, 0xbb, 0xc8, 0x5c, 0x30,
+    0x9d, 0xda, 0xdd, 0x9d, 0x80, 0xc0, 0x0e, 0x89,
+    0xa5, 0xb8, 0xc1, 0x1d, 0x28, 0x19, 0x55, 0x67,
+    0xfd, 0x03, 0xd2, 0xdd, 0xe4, 0xf0, 0xb4, 0x20,
+    0x03, 0x74, 0x9b, 0xb8, 0x24, 0x23, 0xbb, 0xde,
+    0xd5, 0x53, 0x86, 0xaa, 0xc1, 0x5d, 0x65, 0xdd,
+    0xcf, 0xec, 0x8a, 0x59, 0x4a, 0x73, 0xca, 0xc5,
+    0x85, 0x02, 0x40, 0x00, 0xc4, 0x5e, 0x8d, 0xa4,
+    0xea, 0xbb, 0x6a, 0x9b, 0xe6, 0x3a, 0x4d, 0xc1,
+    0xdb, 0xe5, 0x52, 0x38, 0xf9, 0x59, 0x91, 0x2d,
+    0x90, 0x82, 0xe3, 0x31, 0x1b, 0x48, 0xb7, 0x42,
+    0xfa, 0x1d, 0x83, 0xd5, 0x3d, 0x02, 0xc2, 0x12,
+    0x71, 0x10, 0x3a, 0xbd, 0x92, 0x8f, 0x9b, 0xa2,
+    0x6b, 0x2d, 0x21, 0xa4, 0x65, 0xe9, 0xfa, 0x8c,
+    0x30, 0x2a, 0x89, 0xce, 0xd0, 0xa7, 0x67, 0xd8,
+    0x45, 0x84, 0xb0
+  };
+
+  const uint8 short_integer_without_high_bit[] = {
+    0x30, 0x82, 0x02, 0x76, 0x02, 0x01, 0x00, 0x30,
+    0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+    0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
+    0x02, 0x60, 0x30, 0x82, 0x02, 0x5c, 0x02, 0x01,
+    0x00, 0x02, 0x81, 0x81, 0x00, 0xc3, 0x9e, 0x8d,
+    0xc4, 0x6d, 0x38, 0xe8, 0x0e, 0x9f, 0x84, 0x03,
+    0x40, 0x8e, 0x81, 0x2e, 0x56, 0x67, 0x78, 0x11,
+    0x85, 0x27, 0x81, 0x52, 0xf2, 0x1b, 0x3e, 0x5b,
+    0xf8, 0xab, 0xfc, 0xaf, 0xca, 0x5c, 0x26, 0xd5,
+    0xfa, 0xd4, 0x55, 0x50, 0x38, 0xb9, 0x9d, 0x89,
+    0x92, 0x7e, 0x34, 0xcf, 0x37, 0x82, 0x48, 0x2d,
+    0xaa, 0xc4, 0x6a, 0x0e, 0x93, 0xea, 0xad, 0x8a,
+    0x33, 0xf0, 0x42, 0x23, 0xe0, 0x4c, 0x98, 0xbf,
+    0x01, 0x00, 0x1b, 0xfe, 0x06, 0x15, 0xc6, 0xe3,
+    0x80, 0x79, 0x6d, 0xfe, 0x48, 0xcd, 0x40, 0xbb,
+    0xf9, 0x58, 0xe6, 0xbf, 0xd5, 0x4c, 0x29, 0x48,
+    0x53, 0x78, 0x06, 0x03, 0x0d, 0x59, 0xf5, 0x20,
+    0xe0, 0xe6, 0x8c, 0xb2, 0xf5, 0xd8, 0x61, 0x52,
+    0x7e, 0x40, 0x83, 0xd7, 0x69, 0xae, 0xd7, 0x75,
+    0x02, 0x2d, 0x49, 0xd5, 0x15, 0x5b, 0xf1, 0xd9,
+    0x4d, 0x60, 0x7d, 0x62, 0xa5, 0x02, 0x03, 0x01,
+    0x00, 0x01, 0x02, 0x7f, 0x6d, 0x45, 0x23, 0xeb,
+    0x95, 0x17, 0x34, 0x88, 0xf6, 0x91, 0xc7, 0x3f,
+    0x48, 0x5a, 0xe0, 0x87, 0x63, 0x44, 0xae, 0x84,
+    0xb2, 0x8c, 0x8a, 0xc8, 0xb2, 0x6f, 0x22, 0xf0,
+    0xc5, 0x21, 0x61, 0x10, 0xa8, 0x69, 0x09, 0x1e,
+    0x13, 0x7d, 0x94, 0x52, 0x1b, 0x5c, 0xe4, 0x7b,
+    0xf0, 0x03, 0x8f, 0xbc, 0x72, 0x09, 0xdf, 0x78,
+    0x84, 0x3e, 0xb9, 0xe5, 0xe6, 0x31, 0x0a, 0x01,
+    0xf9, 0x32, 0xf8, 0xd6, 0x57, 0xa3, 0x87, 0xe6,
+    0xf5, 0x98, 0xbc, 0x8e, 0x41, 0xb9, 0x50, 0x17,
+    0x7b, 0xd3, 0x97, 0x5a, 0x44, 0x3a, 0xee, 0xff,
+    0x6b, 0xb3, 0x3a, 0x52, 0xe7, 0xa4, 0x96, 0x9a,
+    0xf6, 0x83, 0xc8, 0x97, 0x1c, 0x63, 0xa1, 0xd6,
+    0xb3, 0xa8, 0xb2, 0xc7, 0x73, 0x25, 0x0f, 0x58,
+    0x36, 0xb9, 0x7a, 0x47, 0xa7, 0x4d, 0x30, 0xfe,
+    0x4d, 0x74, 0x56, 0xe8, 0xfb, 0xd6, 0x50, 0xe5,
+    0xe0, 0x28, 0x15, 0x02, 0x41, 0x00, 0xeb, 0x15,
+    0x62, 0xb6, 0x37, 0x41, 0x7c, 0xc5, 0x00, 0x22,
+    0x2c, 0x5a, 0x5e, 0xe4, 0xb2, 0x11, 0x87, 0x89,
+    0xad, 0xf4, 0x57, 0x68, 0x90, 0xb7, 0x9f, 0xe2,
+    0x79, 0x20, 0x6b, 0x98, 0x00, 0x0d, 0x3a, 0x3b,
+    0xc1, 0xcd, 0x36, 0xf9, 0x27, 0xda, 0x40, 0x36,
+    0x1d, 0xb8, 0x5c, 0x96, 0xeb, 0x04, 0x08, 0xe1,
+    0x3f, 0xfa, 0x94, 0x8b, 0x0f, 0xa0, 0xff, 0xc1,
+    0x51, 0xea, 0x90, 0xad, 0x15, 0xc7, 0x02, 0x41,
+    0x00, 0xd5, 0x06, 0x45, 0xd7, 0x55, 0x63, 0x1a,
+    0xf0, 0x89, 0x81, 0xae, 0x87, 0x23, 0xa2, 0x39,
+    0xfe, 0x3d, 0x82, 0xc7, 0xcb, 0x15, 0xb9, 0xe3,
+    0xe2, 0x5b, 0xc6, 0xd2, 0x55, 0xdd, 0xab, 0x55,
+    0x29, 0x7c, 0xda, 0x0e, 0x1c, 0x09, 0xfc, 0x73,
+    0x0d, 0x01, 0xed, 0x6d, 0x2f, 0x05, 0xd0, 0xd5,
+    0x1d, 0xce, 0x18, 0x7f, 0xb0, 0xc8, 0x47, 0x77,
+    0xd2, 0xa9, 0x9e, 0xfc, 0x39, 0x4b, 0x3d, 0x94,
+    0x33, 0x02, 0x41, 0x00, 0x8f, 0x94, 0x09, 0x2d,
+    0x17, 0x44, 0x75, 0x0a, 0xf1, 0x10, 0xee, 0x1b,
+    0xe7, 0xd7, 0x2f, 0xf6, 0xca, 0xdc, 0x49, 0x15,
+    0x72, 0x09, 0x58, 0x51, 0xfe, 0x61, 0xd8, 0xee,
+    0xf7, 0x27, 0xe7, 0xe8, 0x2c, 0x47, 0xf1, 0x0f,
+    0x00, 0x63, 0x5e, 0x76, 0xcb, 0x3f, 0x02, 0x19,
+    0xe6, 0xda, 0xfa, 0x01, 0x05, 0xd7, 0x65, 0x37,
+    0x0b, 0x60, 0x7f, 0x94, 0x2a, 0x80, 0x8d, 0x22,
+    0x81, 0x68, 0x65, 0x63, 0x02, 0x41, 0x00, 0xc2,
+    0xd4, 0x18, 0xde, 0x47, 0x9e, 0xfb, 0x8d, 0x91,
+    0x05, 0xc5, 0x3c, 0x9d, 0xcf, 0x8a, 0x60, 0xc7,
+    0x9b, 0x2b, 0xe5, 0xc6, 0xba, 0x1b, 0xfc, 0xf3,
+    0xd9, 0x54, 0x97, 0xe9, 0xc4, 0x00, 0x80, 0x90,
+    0x4a, 0xd2, 0x6a, 0xbc, 0x8b, 0x62, 0x22, 0x3c,
+    0x68, 0x0c, 0xda, 0xdb, 0xe3, 0xd2, 0x76, 0x8e,
+    0xff, 0x03, 0x12, 0x09, 0x2a, 0xac, 0x21, 0x44,
+    0xb7, 0x3e, 0x91, 0x9c, 0x09, 0xf6, 0xd7, 0x02,
+    0x41, 0x00, 0xc0, 0xa1, 0xbb, 0x70, 0xdc, 0xf8,
+    0xeb, 0x17, 0x61, 0xd4, 0x8c, 0x7c, 0x3b, 0x82,
+    0x91, 0x58, 0xff, 0xf9, 0x19, 0xac, 0x3a, 0x73,
+    0xa7, 0x20, 0xe5, 0x22, 0x02, 0xc4, 0xf6, 0xb9,
+    0xb9, 0x43, 0x53, 0x35, 0x88, 0xe1, 0x05, 0xb6,
+    0x43, 0x9b, 0x39, 0xc8, 0x04, 0x4d, 0x2b, 0x01,
+    0xf7, 0xe6, 0x1b, 0x8d, 0x7e, 0x89, 0xe3, 0x43,
+    0xd4, 0xf3, 0xab, 0x28, 0xd4, 0x5a, 0x1f, 0x20,
+    0xea, 0xbe
+  };
+
+  std::vector<uint8> input1;
+  std::vector<uint8> input2;
+
+  input1.resize(sizeof(short_integer_with_high_bit));
+  input2.resize(sizeof(short_integer_without_high_bit));
+
+  memcpy(&input1.front(), short_integer_with_high_bit,
+         sizeof(short_integer_with_high_bit));
+  memcpy(&input2.front(), short_integer_without_high_bit,
+         sizeof(short_integer_without_high_bit));
+
+  scoped_ptr<crypto::RSAPrivateKey> keypair1(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(input1));
+  scoped_ptr<crypto::RSAPrivateKey> keypair2(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(input2));
+  ASSERT_TRUE(keypair1.get());
+  ASSERT_TRUE(keypair2.get());
+
+  std::vector<uint8> output1;
+  std::vector<uint8> output2;
+  ASSERT_TRUE(keypair1->ExportPrivateKey(&output1));
+  ASSERT_TRUE(keypair2->ExportPrivateKey(&output2));
+
+  ASSERT_EQ(input1.size(), output1.size());
+  ASSERT_EQ(input2.size(), output2.size());
+  ASSERT_TRUE(0 == memcmp(&output1.front(), &input1.front(),
+                          input1.size()));
+  ASSERT_TRUE(0 == memcmp(&output2.front(), &input2.front(),
+                          input2.size()));
+}
+
+// The following test can run if either USE_NSS or USE_OPENSSL is defined, but
+// not otherwise (since it uses crypto::RSAPrivateKey::CreateFromKey).
+#if defined(USE_NSS) || defined(USE_OPENSSL)
+TEST(RSAPrivateKeyUnitTest, CreateFromKeyTest) {
+  scoped_ptr<crypto::RSAPrivateKey> key_pair(
+      crypto::RSAPrivateKey::Create(256));
+
+  scoped_ptr<crypto::RSAPrivateKey> key_copy(
+      crypto::RSAPrivateKey::CreateFromKey(key_pair->key()));
+  ASSERT_TRUE(key_copy.get());
+
+  std::vector<uint8> privkey;
+  std::vector<uint8> pubkey;
+  ASSERT_TRUE(key_pair->ExportPrivateKey(&privkey));
+  ASSERT_TRUE(key_pair->ExportPublicKey(&pubkey));
+
+  std::vector<uint8> privkey_copy;
+  std::vector<uint8> pubkey_copy;
+  ASSERT_TRUE(key_copy->ExportPrivateKey(&privkey_copy));
+  ASSERT_TRUE(key_copy->ExportPublicKey(&pubkey_copy));
+
+  ASSERT_EQ(privkey, privkey_copy);
+  ASSERT_EQ(pubkey, pubkey_copy);
+}
+#endif
+
diff --git a/crypto/scoped_capi_types.h b/crypto/scoped_capi_types.h
new file mode 100644
index 0000000..9ab28d9
--- /dev/null
+++ b/crypto/scoped_capi_types.h
@@ -0,0 +1,121 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SCOPED_CAPI_TYPES_H_
+#define CRYPTO_SCOPED_CAPI_TYPES_H_
+
+#include <windows.h>
+#include <wincrypt.h>
+
+#include <algorithm>
+
+#include "base/logging.h"
+
+namespace crypto {
+
+// Simple destructor for the Free family of CryptoAPI functions, such as
+// CryptDestroyHash, which take only a single argument to release.
+template <typename CAPIHandle, BOOL (WINAPI *Destroyer)(CAPIHandle)>
+struct CAPIDestroyer {
+  void operator()(CAPIHandle handle) const {
+    if (handle) {
+      BOOL ok = Destroyer(handle);
+      DCHECK(ok);
+    }
+  }
+};
+
+// Destructor for the Close/Release family of CryptoAPI functions, which take
+// a second DWORD parameter indicating flags to use when closing or releasing.
+// This includes functions like CertCloseStore or CryptReleaseContext.
+template <typename CAPIHandle, BOOL (WINAPI *Destroyer)(CAPIHandle, DWORD),
+          DWORD flags>
+struct CAPIDestroyerWithFlags {
+  void operator()(CAPIHandle handle) const {
+    if (handle) {
+      BOOL ok = Destroyer(handle, flags);
+      DCHECK(ok);
+    }
+  }
+};
+
+// scoped_ptr-like class for the CryptoAPI cryptography and certificate
+// handles. Because these handles are defined as integer types, and not
+// pointers, the existing scoped classes, such as scoped_ptr, are insufficient.
+// The semantics are the same as scoped_ptr.
+template <class CAPIHandle, typename FreeProc>
+class ScopedCAPIHandle {
+ public:
+  explicit ScopedCAPIHandle(CAPIHandle handle = NULL) : handle_(handle) {}
+
+  ~ScopedCAPIHandle() {
+    reset();
+  }
+
+  void reset(CAPIHandle handle = NULL) {
+    if (handle_ != handle) {
+      FreeProc free_proc;
+      free_proc(handle_);
+      handle_ = handle;
+    }
+  }
+
+  operator CAPIHandle() const { return handle_; }
+  CAPIHandle get() const { return handle_; }
+
+  CAPIHandle* receive() {
+    CHECK(handle_ == NULL);
+    return &handle_;
+  }
+
+  bool operator==(CAPIHandle handle) const {
+    return handle_ == handle;
+  }
+
+  bool operator!=(CAPIHandle handle) const {
+    return handle_ != handle;
+  }
+
+  void swap(ScopedCAPIHandle& b) {
+    CAPIHandle tmp = b.handle_;
+    b.handle_ = handle_;
+    handle_ = tmp;
+  }
+
+  CAPIHandle release() {
+    CAPIHandle tmp = handle_;
+    handle_ = NULL;
+    return tmp;
+  }
+
+ private:
+  CAPIHandle handle_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedCAPIHandle);
+};
+
+template<class CH, typename FP> inline
+bool operator==(CH h, const ScopedCAPIHandle<CH, FP>& b) {
+  return h == b.get();
+}
+
+template<class CH, typename FP> inline
+bool operator!=(CH h, const ScopedCAPIHandle<CH, FP>& b) {
+  return h != b.get();
+}
+
+typedef ScopedCAPIHandle<
+    HCRYPTPROV,
+    CAPIDestroyerWithFlags<HCRYPTPROV,
+                           CryptReleaseContext, 0> > ScopedHCRYPTPROV;
+
+typedef ScopedCAPIHandle<
+    HCRYPTKEY, CAPIDestroyer<HCRYPTKEY, CryptDestroyKey> > ScopedHCRYPTKEY;
+
+typedef ScopedCAPIHandle<
+    HCRYPTHASH, CAPIDestroyer<HCRYPTHASH, CryptDestroyHash> > ScopedHCRYPTHASH;
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SCOPED_CAPI_TYPES_H_
diff --git a/crypto/scoped_nss_types.h b/crypto/scoped_nss_types.h
new file mode 100644
index 0000000..8e96e8d
--- /dev/null
+++ b/crypto/scoped_nss_types.h
@@ -0,0 +1,59 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SCOPED_NSS_TYPES_H_
+#define CRYPTO_SCOPED_NSS_TYPES_H_
+
+#include <keyhi.h>
+#include <nss.h>
+#include <pk11pub.h>
+#include <plarena.h>
+
+#include "base/memory/scoped_ptr.h"
+
+namespace crypto {
+
+template <typename Type, void (*Destroyer)(Type*)>
+struct NSSDestroyer {
+  void operator()(Type* ptr) const {
+    Destroyer(ptr);
+  }
+};
+
+template <typename Type, void (*Destroyer)(Type*, PRBool), PRBool freeit>
+struct NSSDestroyer1 {
+  void operator()(Type* ptr) const {
+    Destroyer(ptr, freeit);
+  }
+};
+
+// Define some convenient scopers around NSS pointers.
+typedef scoped_ptr<PK11Context,
+                   NSSDestroyer1<PK11Context, PK11_DestroyContext, PR_TRUE> >
+    ScopedPK11Context;
+typedef scoped_ptr<PK11SlotInfo, NSSDestroyer<PK11SlotInfo, PK11_FreeSlot> >
+    ScopedPK11Slot;
+typedef scoped_ptr<PK11SlotList, NSSDestroyer<PK11SlotList, PK11_FreeSlotList> >
+    ScopedPK11SlotList;
+typedef scoped_ptr<PK11SymKey, NSSDestroyer<PK11SymKey, PK11_FreeSymKey> >
+    ScopedPK11SymKey;
+typedef scoped_ptr<SECKEYPublicKey,
+                   NSSDestroyer<SECKEYPublicKey, SECKEY_DestroyPublicKey> >
+    ScopedSECKEYPublicKey;
+typedef scoped_ptr<SECKEYPrivateKey,
+                   NSSDestroyer<SECKEYPrivateKey, SECKEY_DestroyPrivateKey> >
+    ScopedSECKEYPrivateKey;
+typedef scoped_ptr<SECAlgorithmID,
+                   NSSDestroyer1<SECAlgorithmID, SECOID_DestroyAlgorithmID,
+                                 PR_TRUE> >
+    ScopedSECAlgorithmID;
+typedef scoped_ptr<SECItem, NSSDestroyer1<SECItem, SECITEM_FreeItem, PR_TRUE> >
+    ScopedSECItem;
+typedef scoped_ptr<PLArenaPool,
+                   NSSDestroyer1<PLArenaPool, PORT_FreeArena, PR_FALSE> >
+    ScopedPLArenaPool;
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SCOPED_NSS_TYPES_H_
diff --git a/crypto/scoped_openssl_types.h b/crypto/scoped_openssl_types.h
new file mode 100644
index 0000000..d0428fb
--- /dev/null
+++ b/crypto/scoped_openssl_types.h
@@ -0,0 +1,58 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SCOPED_OPENSSL_TYPES_H_
+#define CRYPTO_SCOPED_OPENSSL_TYPES_H_
+
+#include <openssl/bio.h>
+#include <openssl/bn.h>
+#include <openssl/dsa.h>
+#include <openssl/ec.h>
+#include <openssl/ecdsa.h>
+#include <openssl/evp.h>
+#include <openssl/rsa.h>
+
+#include "base/memory/scoped_ptr.h"
+
+namespace crypto {
+
+// Simplistic helper that wraps a call to a deleter function. In a C++11 world,
+// this would be std::function<>. An alternative would be to re-use
+// base::internal::RunnableAdapter<>, but that's far too heavy weight.
+template <typename Type, void (*Destroyer)(Type*)>
+struct OpenSSLDestroyer {
+  void operator()(Type* ptr) const { Destroyer(ptr); }
+};
+
+template <typename PointerType, void (*Destroyer)(PointerType*)>
+struct ScopedOpenSSL {
+  typedef scoped_ptr<PointerType, OpenSSLDestroyer<PointerType, Destroyer> >
+      Type;
+};
+
+struct OpenSSLFree {
+  void operator()(uint8_t* ptr) const { OPENSSL_free(ptr); }
+};
+
+// Several typedefs are provided for crypto-specific primitives, for
+// short-hand and prevalence. Note that OpenSSL types related to X.509 are
+// intentionally not included, as crypto/ does not generally deal with
+// certificates or PKI.
+typedef ScopedOpenSSL<BIGNUM, BN_free>::Type ScopedBIGNUM;
+typedef ScopedOpenSSL<EC_KEY, EC_KEY_free>::Type ScopedEC_KEY;
+typedef ScopedOpenSSL<BIO, BIO_free_all>::Type ScopedBIO;
+typedef ScopedOpenSSL<DSA, DSA_free>::Type ScopedDSA;
+typedef ScopedOpenSSL<ECDSA_SIG, ECDSA_SIG_free>::Type ScopedECDSA_SIG;
+typedef ScopedOpenSSL<EC_KEY, EC_KEY_free>::Type ScopedEC_KEY;
+typedef ScopedOpenSSL<EVP_MD_CTX, EVP_MD_CTX_destroy>::Type ScopedEVP_MD_CTX;
+typedef ScopedOpenSSL<EVP_PKEY, EVP_PKEY_free>::Type ScopedEVP_PKEY;
+typedef ScopedOpenSSL<EVP_PKEY_CTX, EVP_PKEY_CTX_free>::Type ScopedEVP_PKEY_CTX;
+typedef ScopedOpenSSL<RSA, RSA_free>::Type ScopedRSA;
+
+// The bytes must have been allocated with OPENSSL_malloc.
+typedef scoped_ptr<uint8_t, OpenSSLFree> ScopedOpenSSLBytes;
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SCOPED_OPENSSL_TYPES_H_
diff --git a/crypto/scoped_test_nss_chromeos_user.cc b/crypto/scoped_test_nss_chromeos_user.cc
new file mode 100644
index 0000000..aec25d8
--- /dev/null
+++ b/crypto/scoped_test_nss_chromeos_user.cc
@@ -0,0 +1,37 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/scoped_test_nss_chromeos_user.h"
+
+#include "base/logging.h"
+#include "crypto/nss_util.h"
+#include "crypto/nss_util_internal.h"
+
+namespace crypto {
+
+ScopedTestNSSChromeOSUser::ScopedTestNSSChromeOSUser(
+    const std::string& username_hash)
+    : username_hash_(username_hash), constructed_successfully_(false) {
+  if (!temp_dir_.CreateUniqueTempDir())
+    return;
+  // This opens a software DB in the given folder. In production code that is in
+  // the home folder, but for testing the temp folder is used.
+  constructed_successfully_ =
+      InitializeNSSForChromeOSUser(username_hash, temp_dir_.path());
+}
+
+ScopedTestNSSChromeOSUser::~ScopedTestNSSChromeOSUser() {
+  if (constructed_successfully_)
+    CloseChromeOSUserForTesting(username_hash_);
+}
+
+void ScopedTestNSSChromeOSUser::FinishInit() {
+  DCHECK(constructed_successfully_);
+  if (!ShouldInitializeTPMForChromeOSUser(username_hash_))
+    return;
+  WillInitializeTPMForChromeOSUser(username_hash_);
+  InitializePrivateSoftwareSlotForChromeOSUser(username_hash_);
+}
+
+}  // namespace crypto
diff --git a/crypto/scoped_test_nss_chromeos_user.h b/crypto/scoped_test_nss_chromeos_user.h
new file mode 100644
index 0000000..1638517
--- /dev/null
+++ b/crypto/scoped_test_nss_chromeos_user.h
@@ -0,0 +1,43 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SCOPED_TEST_NSS_CHROMEOS_USER_H_
+#define CRYPTO_SCOPED_TEST_NSS_CHROMEOS_USER_H_
+
+#include <string>
+
+#include "base/files/scoped_temp_dir.h"
+#include "base/macros.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Opens a persistent NSS software database in a temporary directory for the
+// user with |username_hash|. This database will be used for both the user's
+// public and private slot.
+class CRYPTO_EXPORT_PRIVATE ScopedTestNSSChromeOSUser {
+ public:
+  // Opens the software database and sets the public slot for the user. The
+  // private slot will not be initialized until FinishInit() is called.
+  explicit ScopedTestNSSChromeOSUser(const std::string& username_hash);
+  ~ScopedTestNSSChromeOSUser();
+
+  std::string username_hash() const { return username_hash_; }
+  bool constructed_successfully() const { return constructed_successfully_; }
+
+  // Completes initialization of user. Causes any waiting private slot callbacks
+  // to run, see GetPrivateSlotForChromeOSUser().
+  void FinishInit();
+
+ private:
+  const std::string username_hash_;
+  base::ScopedTempDir temp_dir_;
+  bool constructed_successfully_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedTestNSSChromeOSUser);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SCOPED_TEST_NSS_CHROMEOS_USER_H_
diff --git a/crypto/scoped_test_nss_db.cc b/crypto/scoped_test_nss_db.cc
new file mode 100644
index 0000000..452c26d
--- /dev/null
+++ b/crypto/scoped_test_nss_db.cc
@@ -0,0 +1,53 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/scoped_test_nss_db.h"
+
+#include "base/logging.h"
+#include "base/threading/thread_restrictions.h"
+#include "crypto/nss_util.h"
+#include "crypto/nss_util_internal.h"
+
+namespace crypto {
+
+ScopedTestNSSDB::ScopedTestNSSDB() {
+  EnsureNSSInit();
+  // NSS is allowed to do IO on the current thread since dispatching
+  // to a dedicated thread would still have the affect of blocking
+  // the current thread, due to NSS's internal locking requirements
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
+
+  if (!temp_dir_.CreateUniqueTempDir())
+    return;
+
+  const char kTestDescription[] = "Test DB";
+  slot_ = OpenSoftwareNSSDB(temp_dir_.path(), kTestDescription);
+}
+
+ScopedTestNSSDB::~ScopedTestNSSDB() {
+  // Don't close when NSS is < 3.15.1, because it would require an additional
+  // sleep for 1 second after closing the database, due to
+  // http://bugzil.la/875601.
+  if (!NSS_VersionCheck("3.15.1")) {
+    LOG(ERROR) << "NSS version is < 3.15.1, test DB will not be closed.";
+    temp_dir_.Take();
+    return;
+  }
+
+  // NSS is allowed to do IO on the current thread since dispatching
+  // to a dedicated thread would still have the affect of blocking
+  // the current thread, due to NSS's internal locking requirements
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
+
+  if (slot_) {
+    SECStatus status = SECMOD_CloseUserDB(slot_.get());
+    if (status != SECSuccess)
+      PLOG(ERROR) << "SECMOD_CloseUserDB failed: " << PORT_GetError();
+  }
+
+  if (!temp_dir_.Delete())
+    LOG(ERROR) << "Could not delete temporary directory.";
+}
+
+}  // namespace crypto
diff --git a/crypto/scoped_test_nss_db.h b/crypto/scoped_test_nss_db.h
new file mode 100644
index 0000000..88c2d55
--- /dev/null
+++ b/crypto/scoped_test_nss_db.h
@@ -0,0 +1,35 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SCOPED_TEST_NSS_DB_H_
+#define CRYPTO_SCOPED_TEST_NSS_DB_H_
+
+#include "base/files/scoped_temp_dir.h"
+#include "base/macros.h"
+#include "crypto/crypto_export.h"
+#include "crypto/scoped_nss_types.h"
+
+namespace crypto {
+
+// Opens a persistent NSS database in a temporary directory.
+// Prior NSS version 3.15.1, because of http://bugzil.la/875601 , the opened DB
+// will not be closed automatically.
+class CRYPTO_EXPORT_PRIVATE ScopedTestNSSDB {
+ public:
+  ScopedTestNSSDB();
+  ~ScopedTestNSSDB();
+
+  bool is_open() const { return slot_; }
+  PK11SlotInfo* slot() const { return slot_.get(); }
+
+ private:
+  base::ScopedTempDir temp_dir_;
+  ScopedPK11Slot slot_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedTestNSSDB);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SCOPED_TEST_NSS_DB_H_
diff --git a/crypto/scoped_test_system_nss_key_slot.cc b/crypto/scoped_test_system_nss_key_slot.cc
new file mode 100644
index 0000000..53fbbff
--- /dev/null
+++ b/crypto/scoped_test_system_nss_key_slot.cc
@@ -0,0 +1,32 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/scoped_test_system_nss_key_slot.h"
+
+#include "crypto/nss_util_internal.h"
+#include "crypto/scoped_test_nss_db.h"
+
+namespace crypto {
+
+ScopedTestSystemNSSKeySlot::ScopedTestSystemNSSKeySlot()
+    : test_db_(new ScopedTestNSSDB) {
+  if (!test_db_->is_open())
+    return;
+  SetSystemKeySlotForTesting(
+      ScopedPK11Slot(PK11_ReferenceSlot(test_db_->slot())));
+}
+
+ScopedTestSystemNSSKeySlot::~ScopedTestSystemNSSKeySlot() {
+  SetSystemKeySlotForTesting(ScopedPK11Slot());
+}
+
+bool ScopedTestSystemNSSKeySlot::ConstructedSuccessfully() const {
+  return test_db_->is_open();
+}
+
+PK11SlotInfo* ScopedTestSystemNSSKeySlot::slot() const {
+  return test_db_->slot();
+}
+
+}  // namespace crypto
diff --git a/crypto/scoped_test_system_nss_key_slot.h b/crypto/scoped_test_system_nss_key_slot.h
new file mode 100644
index 0000000..ac3b72c
--- /dev/null
+++ b/crypto/scoped_test_system_nss_key_slot.h
@@ -0,0 +1,43 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
+#define CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/crypto_export.h"
+
+// Forward declaration, from <pk11pub.h>
+typedef struct PK11SlotInfoStr PK11SlotInfo;
+
+namespace crypto {
+
+class ScopedTestNSSDB;
+
+// Opens a persistent NSS software database in a temporary directory and sets
+// the test system slot to the opened database. This helper should be created in
+// tests to fake the system token that is usually provided by the Chaps module.
+// |slot| is exposed through |GetSystemNSSKeySlot| and |IsTPMTokenReady| will
+// return true.
+// |InitializeTPMTokenAndSystemSlot|, which triggers the TPM initialization,
+// does not have to be called if this helper is used.
+// At most one instance of this helper must be used at a time.
+class CRYPTO_EXPORT_PRIVATE ScopedTestSystemNSSKeySlot {
+ public:
+  explicit ScopedTestSystemNSSKeySlot();
+  ~ScopedTestSystemNSSKeySlot();
+
+  bool ConstructedSuccessfully() const;
+  PK11SlotInfo* slot() const;
+
+ private:
+  scoped_ptr<ScopedTestNSSDB> test_db_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedTestSystemNSSKeySlot);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
diff --git a/crypto/secure_hash.h b/crypto/secure_hash.h
new file mode 100644
index 0000000..173fd0a
--- /dev/null
+++ b/crypto/secure_hash.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SECURE_HASH_H_
+#define CRYPTO_SECURE_HASH_H_
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+class Pickle;
+class PickleIterator;
+
+namespace crypto {
+
+// A wrapper to calculate secure hashes incrementally, allowing to
+// be used when the full input is not known in advance.
+class CRYPTO_EXPORT SecureHash {
+ public:
+  enum Algorithm {
+    SHA256,
+  };
+  virtual ~SecureHash() {}
+
+  static SecureHash* Create(Algorithm type);
+
+  virtual void Update(const void* input, size_t len) = 0;
+  virtual void Finish(void* output, size_t len) = 0;
+
+  // Serialize the context, so it can be restored at a later time.
+  // |pickle| will contain the serialized data.
+  // Returns whether or not |pickle| was filled.
+  virtual bool Serialize(Pickle* pickle) = 0;
+
+  // Restore the context that was saved earlier.
+  // |data_iterator| allows this to be used as part of a larger pickle.
+  // |pickle| holds the saved data.
+  // Returns success or failure.
+  virtual bool Deserialize(PickleIterator* data_iterator) = 0;
+
+ protected:
+  SecureHash() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SecureHash);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SECURE_HASH_H_
diff --git a/crypto/secure_hash_default.cc b/crypto/secure_hash_default.cc
new file mode 100644
index 0000000..7b912e1
--- /dev/null
+++ b/crypto/secure_hash_default.cc
@@ -0,0 +1,96 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/secure_hash.h"
+
+#include "base/logging.h"
+#include "base/pickle.h"
+#include "crypto/third_party/nss/chromium-blapi.h"
+#include "crypto/third_party/nss/chromium-sha256.h"
+
+namespace crypto {
+
+namespace {
+
+const char kSHA256Descriptor[] = "NSS";
+
+class SecureHashSHA256NSS : public SecureHash {
+ public:
+  static const int kSecureHashVersion = 1;
+
+  SecureHashSHA256NSS() {
+    SHA256_Begin(&ctx_);
+  }
+
+  virtual ~SecureHashSHA256NSS() {
+    memset(&ctx_, 0, sizeof(ctx_));
+  }
+
+  // SecureHash implementation:
+  virtual void Update(const void* input, size_t len) OVERRIDE {
+    SHA256_Update(&ctx_, static_cast<const unsigned char*>(input), len);
+  }
+
+  virtual void Finish(void* output, size_t len) OVERRIDE {
+    SHA256_End(&ctx_, static_cast<unsigned char*>(output), NULL,
+               static_cast<unsigned int>(len));
+  }
+
+  virtual bool Serialize(Pickle* pickle) OVERRIDE;
+  virtual bool Deserialize(PickleIterator* data_iterator) OVERRIDE;
+
+ private:
+  SHA256Context ctx_;
+};
+
+bool SecureHashSHA256NSS::Serialize(Pickle* pickle) {
+  if (!pickle)
+    return false;
+
+  if (!pickle->WriteInt(kSecureHashVersion) ||
+      !pickle->WriteString(kSHA256Descriptor) ||
+      !pickle->WriteBytes(&ctx_, sizeof(ctx_))) {
+    return false;
+  }
+
+  return true;
+}
+
+bool SecureHashSHA256NSS::Deserialize(PickleIterator* data_iterator) {
+  int version;
+  if (!data_iterator->ReadInt(&version))
+    return false;
+
+  if (version > kSecureHashVersion)
+    return false;  // We don't know how to deal with this.
+
+  std::string type;
+  if (!data_iterator->ReadString(&type))
+    return false;
+
+  if (type != kSHA256Descriptor)
+    return false;  // It's the wrong kind.
+
+  const char* data = NULL;
+  if (!data_iterator->ReadBytes(&data, sizeof(ctx_)))
+    return false;
+
+  memcpy(&ctx_, data, sizeof(ctx_));
+
+  return true;
+}
+
+}  // namespace
+
+SecureHash* SecureHash::Create(Algorithm algorithm) {
+  switch (algorithm) {
+    case SHA256:
+      return new SecureHashSHA256NSS();
+    default:
+      NOTIMPLEMENTED();
+      return NULL;
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/secure_hash_openssl.cc b/crypto/secure_hash_openssl.cc
new file mode 100644
index 0000000..84d28a5
--- /dev/null
+++ b/crypto/secure_hash_openssl.cc
@@ -0,0 +1,102 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/secure_hash.h"
+
+#include <openssl/crypto.h>
+#include <openssl/sha.h>
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/pickle.h"
+#include "crypto/openssl_util.h"
+
+namespace crypto {
+
+namespace {
+
+const char kSHA256Descriptor[] = "OpenSSL";
+
+class SecureHashSHA256OpenSSL : public SecureHash {
+ public:
+  static const int kSecureHashVersion = 1;
+
+  SecureHashSHA256OpenSSL() {
+    SHA256_Init(&ctx_);
+  }
+
+  virtual ~SecureHashSHA256OpenSSL() {
+    OPENSSL_cleanse(&ctx_, sizeof(ctx_));
+  }
+
+  virtual void Update(const void* input, size_t len) OVERRIDE {
+    SHA256_Update(&ctx_, static_cast<const unsigned char*>(input), len);
+  }
+
+  virtual void Finish(void* output, size_t len) OVERRIDE {
+    ScopedOpenSSLSafeSizeBuffer<SHA256_DIGEST_LENGTH> result(
+        static_cast<unsigned char*>(output), len);
+    SHA256_Final(result.safe_buffer(), &ctx_);
+  }
+
+  virtual bool Serialize(Pickle* pickle) OVERRIDE;
+  virtual bool Deserialize(PickleIterator* data_iterator) OVERRIDE;
+
+ private:
+  SHA256_CTX ctx_;
+};
+
+bool SecureHashSHA256OpenSSL::Serialize(Pickle* pickle) {
+  if (!pickle)
+    return false;
+
+  if (!pickle->WriteInt(kSecureHashVersion) ||
+      !pickle->WriteString(kSHA256Descriptor) ||
+      !pickle->WriteBytes(&ctx_, sizeof(ctx_))) {
+    return false;
+  }
+
+  return true;
+}
+
+bool SecureHashSHA256OpenSSL::Deserialize(PickleIterator* data_iterator) {
+  if (!data_iterator)
+    return false;
+
+  int version;
+  if (!data_iterator->ReadInt(&version))
+    return false;
+
+  if (version > kSecureHashVersion)
+    return false;  // We don't know how to deal with this.
+
+  std::string type;
+  if (!data_iterator->ReadString(&type))
+    return false;
+
+  if (type != kSHA256Descriptor)
+    return false;  // It's the wrong kind.
+
+  const char* data = NULL;
+  if (!data_iterator->ReadBytes(&data, sizeof(ctx_)))
+    return false;
+
+  memcpy(&ctx_, data, sizeof(ctx_));
+
+  return true;
+}
+
+}  // namespace
+
+SecureHash* SecureHash::Create(Algorithm algorithm) {
+  switch (algorithm) {
+    case SHA256:
+      return new SecureHashSHA256OpenSSL();
+    default:
+      NOTIMPLEMENTED();
+      return NULL;
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/secure_hash_unittest.cc b/crypto/secure_hash_unittest.cc
new file mode 100644
index 0000000..c21c365
--- /dev/null
+++ b/crypto/secure_hash_unittest.cc
@@ -0,0 +1,75 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/secure_hash.h"
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/pickle.h"
+#include "crypto/sha2.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(SecureHashTest, TestUpdate) {
+  // Example B.3 from FIPS 180-2: long message.
+  std::string input3(500000, 'a');  // 'a' repeated half a million times
+  int expected3[] = { 0xcd, 0xc7, 0x6e, 0x5c,
+                      0x99, 0x14, 0xfb, 0x92,
+                      0x81, 0xa1, 0xc7, 0xe2,
+                      0x84, 0xd7, 0x3e, 0x67,
+                      0xf1, 0x80, 0x9a, 0x48,
+                      0xa4, 0x97, 0x20, 0x0e,
+                      0x04, 0x6d, 0x39, 0xcc,
+                      0xc7, 0x11, 0x2c, 0xd0 };
+
+  uint8 output3[crypto::kSHA256Length];
+
+  scoped_ptr<crypto::SecureHash> ctx(crypto::SecureHash::Create(
+      crypto::SecureHash::SHA256));
+  ctx->Update(input3.data(), input3.size());
+  ctx->Update(input3.data(), input3.size());
+
+  ctx->Finish(output3, sizeof(output3));
+  for (size_t i = 0; i < crypto::kSHA256Length; i++)
+    EXPECT_EQ(expected3[i], static_cast<int>(output3[i]));
+}
+
+// Save the crypto state mid-stream, and create another instance with the
+// saved state.  Then feed the same data afterwards to both.
+// When done, both should have the same hash value.
+TEST(SecureHashTest, TestSerialization) {
+  std::string input1(10001, 'a');  // 'a' repeated 10001 times
+  std::string input2(10001, 'b');  // 'b' repeated 10001 times
+  std::string input3(10001, 'c');  // 'c' repeated 10001 times
+  std::string input4(10001, 'd');  // 'd' repeated 10001 times
+  std::string input5(10001, 'e');  // 'e' repeated 10001 times
+
+  uint8 output1[crypto::kSHA256Length];
+  uint8 output2[crypto::kSHA256Length];
+
+  scoped_ptr<crypto::SecureHash> ctx1(crypto::SecureHash::Create(
+      crypto::SecureHash::SHA256));
+  scoped_ptr<crypto::SecureHash> ctx2(crypto::SecureHash::Create(
+      crypto::SecureHash::SHA256));
+  Pickle pickle;
+  ctx1->Update(input1.data(), input1.size());
+  ctx1->Update(input2.data(), input2.size());
+  ctx1->Update(input3.data(), input3.size());
+
+  EXPECT_TRUE(ctx1->Serialize(&pickle));
+  ctx1->Update(input4.data(), input4.size());
+  ctx1->Update(input5.data(), input5.size());
+
+  ctx1->Finish(output1, sizeof(output1));
+
+  PickleIterator data_iterator(pickle);
+  EXPECT_TRUE(ctx2->Deserialize(&data_iterator));
+  ctx2->Update(input4.data(), input4.size());
+  ctx2->Update(input5.data(), input5.size());
+
+  ctx2->Finish(output2, sizeof(output2));
+
+  EXPECT_EQ(0, memcmp(output1, output2, crypto::kSHA256Length));
+}
diff --git a/crypto/secure_util.cc b/crypto/secure_util.cc
new file mode 100644
index 0000000..3fe8aa9
--- /dev/null
+++ b/crypto/secure_util.cc
@@ -0,0 +1,19 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/secure_util.h"
+
+namespace crypto {
+
+bool SecureMemEqual(const void* s1, const void* s2, size_t n) {
+  const unsigned char* s1_ptr = reinterpret_cast<const unsigned char*>(s1);
+  const unsigned char* s2_ptr = reinterpret_cast<const unsigned char*>(s2);
+  unsigned char tmp = 0;
+  for (size_t i = 0; i < n; ++i, ++s1_ptr, ++s2_ptr)
+    tmp |= *s1_ptr ^ *s2_ptr;
+  return (tmp == 0);
+}
+
+}  // namespace crypto
+
diff --git a/crypto/secure_util.h b/crypto/secure_util.h
new file mode 100644
index 0000000..cfe05ca
--- /dev/null
+++ b/crypto/secure_util.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SECURE_UTIL_H_
+#define CRYPTO_SECURE_UTIL_H_
+
+#include <stddef.h>
+
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// Performs a constant-time comparison of two strings, returning true if the
+// strings are equal.
+//
+// For cryptographic operations, comparison functions such as memcmp() may
+// expose side-channel information about input, allowing an attacker to
+// perform timing analysis to determine what the expected bits should be. In
+// order to avoid such attacks, the comparison must execute in constant time,
+// so as to not to reveal to the attacker where the difference(s) are.
+// For an example attack, see
+// http://groups.google.com/group/keyczar-discuss/browse_thread/thread/5571eca0948b2a13
+CRYPTO_EXPORT bool SecureMemEqual(const void* s1, const void* s2, size_t n);
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SECURE_UTIL_H_
+
diff --git a/crypto/sha2.cc b/crypto/sha2.cc
new file mode 100644
index 0000000..6f36237
--- /dev/null
+++ b/crypto/sha2.cc
@@ -0,0 +1,25 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/sha2.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/stl_util.h"
+#include "crypto/secure_hash.h"
+
+namespace crypto {
+
+void SHA256HashString(const base::StringPiece& str, void* output, size_t len) {
+  scoped_ptr<SecureHash> ctx(SecureHash::Create(SecureHash::SHA256));
+  ctx->Update(str.data(), str.length());
+  ctx->Finish(output, len);
+}
+
+std::string SHA256HashString(const base::StringPiece& str) {
+  std::string output(kSHA256Length, 0);
+  SHA256HashString(str, string_as_array(&output), output.size());
+  return output;
+}
+
+}  // namespace crypto
diff --git a/crypto/sha2.h b/crypto/sha2.h
new file mode 100644
index 0000000..7e279d3
--- /dev/null
+++ b/crypto/sha2.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SHA2_H_
+#define CRYPTO_SHA2_H_
+
+#include <string>
+
+#include "base/strings/string_piece.h"
+#include "crypto/crypto_export.h"
+
+namespace crypto {
+
+// These functions perform SHA-256 operations.
+//
+// Functions for SHA-384 and SHA-512 can be added when the need arises.
+
+static const size_t kSHA256Length = 32;  // Length in bytes of a SHA-256 hash.
+
+// Computes the SHA-256 hash of the input string 'str' and stores the first
+// 'len' bytes of the hash in the output buffer 'output'.  If 'len' > 32,
+// only 32 bytes (the full hash) are stored in the 'output' buffer.
+CRYPTO_EXPORT void SHA256HashString(const base::StringPiece& str,
+                                    void* output, size_t len);
+
+// Convenience version of the above that returns the result in a 32-byte
+// string.
+CRYPTO_EXPORT std::string SHA256HashString(const base::StringPiece& str);
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SHA2_H_
diff --git a/crypto/sha2_unittest.cc b/crypto/sha2_unittest.cc
new file mode 100644
index 0000000..78da136
--- /dev/null
+++ b/crypto/sha2_unittest.cc
@@ -0,0 +1,100 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/sha2.h"
+
+#include "base/basictypes.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(Sha256Test, Test1) {
+  // Example B.1 from FIPS 180-2: one-block message.
+  std::string input1 = "abc";
+  int expected1[] = { 0xba, 0x78, 0x16, 0xbf,
+                      0x8f, 0x01, 0xcf, 0xea,
+                      0x41, 0x41, 0x40, 0xde,
+                      0x5d, 0xae, 0x22, 0x23,
+                      0xb0, 0x03, 0x61, 0xa3,
+                      0x96, 0x17, 0x7a, 0x9c,
+                      0xb4, 0x10, 0xff, 0x61,
+                      0xf2, 0x00, 0x15, 0xad };
+
+  uint8 output1[crypto::kSHA256Length];
+  crypto::SHA256HashString(input1, output1, sizeof(output1));
+  for (size_t i = 0; i < crypto::kSHA256Length; i++)
+    EXPECT_EQ(expected1[i], static_cast<int>(output1[i]));
+
+  uint8 output_truncated1[4];  // 4 bytes == 32 bits
+  crypto::SHA256HashString(input1,
+                           output_truncated1, sizeof(output_truncated1));
+  for (size_t i = 0; i < sizeof(output_truncated1); i++)
+    EXPECT_EQ(expected1[i], static_cast<int>(output_truncated1[i]));
+}
+
+TEST(Sha256Test, Test1_String) {
+  // Same as the above, but using the wrapper that returns a std::string.
+  // Example B.1 from FIPS 180-2: one-block message.
+  std::string input1 = "abc";
+  int expected1[] = { 0xba, 0x78, 0x16, 0xbf,
+                      0x8f, 0x01, 0xcf, 0xea,
+                      0x41, 0x41, 0x40, 0xde,
+                      0x5d, 0xae, 0x22, 0x23,
+                      0xb0, 0x03, 0x61, 0xa3,
+                      0x96, 0x17, 0x7a, 0x9c,
+                      0xb4, 0x10, 0xff, 0x61,
+                      0xf2, 0x00, 0x15, 0xad };
+
+  std::string output1 = crypto::SHA256HashString(input1);
+  ASSERT_EQ(crypto::kSHA256Length, output1.size());
+  for (size_t i = 0; i < crypto::kSHA256Length; i++)
+    EXPECT_EQ(expected1[i], static_cast<uint8>(output1[i]));
+}
+
+TEST(Sha256Test, Test2) {
+  // Example B.2 from FIPS 180-2: multi-block message.
+  std::string input2 =
+      "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
+  int expected2[] = { 0x24, 0x8d, 0x6a, 0x61,
+                      0xd2, 0x06, 0x38, 0xb8,
+                      0xe5, 0xc0, 0x26, 0x93,
+                      0x0c, 0x3e, 0x60, 0x39,
+                      0xa3, 0x3c, 0xe4, 0x59,
+                      0x64, 0xff, 0x21, 0x67,
+                      0xf6, 0xec, 0xed, 0xd4,
+                      0x19, 0xdb, 0x06, 0xc1 };
+
+  uint8 output2[crypto::kSHA256Length];
+  crypto::SHA256HashString(input2, output2, sizeof(output2));
+  for (size_t i = 0; i < crypto::kSHA256Length; i++)
+    EXPECT_EQ(expected2[i], static_cast<int>(output2[i]));
+
+  uint8 output_truncated2[6];
+  crypto::SHA256HashString(input2,
+                           output_truncated2, sizeof(output_truncated2));
+  for (size_t i = 0; i < sizeof(output_truncated2); i++)
+    EXPECT_EQ(expected2[i], static_cast<int>(output_truncated2[i]));
+}
+
+TEST(Sha256Test, Test3) {
+  // Example B.3 from FIPS 180-2: long message.
+  std::string input3(1000000, 'a');  // 'a' repeated a million times
+  int expected3[] = { 0xcd, 0xc7, 0x6e, 0x5c,
+                      0x99, 0x14, 0xfb, 0x92,
+                      0x81, 0xa1, 0xc7, 0xe2,
+                      0x84, 0xd7, 0x3e, 0x67,
+                      0xf1, 0x80, 0x9a, 0x48,
+                      0xa4, 0x97, 0x20, 0x0e,
+                      0x04, 0x6d, 0x39, 0xcc,
+                      0xc7, 0x11, 0x2c, 0xd0 };
+
+  uint8 output3[crypto::kSHA256Length];
+  crypto::SHA256HashString(input3, output3, sizeof(output3));
+  for (size_t i = 0; i < crypto::kSHA256Length; i++)
+    EXPECT_EQ(expected3[i], static_cast<int>(output3[i]));
+
+  uint8 output_truncated3[12];
+  crypto::SHA256HashString(input3,
+                           output_truncated3, sizeof(output_truncated3));
+  for (size_t i = 0; i < sizeof(output_truncated3); i++)
+    EXPECT_EQ(expected3[i], static_cast<int>(output_truncated3[i]));
+}
diff --git a/crypto/signature_creator.h b/crypto/signature_creator.h
new file mode 100644
index 0000000..840d1ff
--- /dev/null
+++ b/crypto/signature_creator.h
@@ -0,0 +1,75 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SIGNATURE_CREATOR_H_
+#define CRYPTO_SIGNATURE_CREATOR_H_
+
+#include <vector>
+
+#include "build/build_config.h"
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+#if defined(USE_OPENSSL)
+// Forward declaration for openssl/*.h
+typedef struct env_md_ctx_st EVP_MD_CTX;
+#elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
+// Forward declaration.
+struct SGNContextStr;
+#endif
+
+namespace crypto {
+
+class RSAPrivateKey;
+
+// Signs data using a bare private key (as opposed to a full certificate).
+// Currently can only sign data using SHA-1 or SHA-256 with RSA PKCS#1v1.5.
+class CRYPTO_EXPORT SignatureCreator {
+ public:
+  // The set of supported hash functions. Extend as required.
+  enum HashAlgorithm {
+    SHA1,
+    SHA256,
+  };
+
+  ~SignatureCreator();
+
+  // Create an instance. The caller must ensure that the provided PrivateKey
+  // instance outlives the created SignatureCreator. Uses the HashAlgorithm
+  // specified.
+  static SignatureCreator* Create(RSAPrivateKey* key, HashAlgorithm hash_alg);
+
+
+  // Signs the precomputed |hash_alg| digest |data| using private |key| as
+  // specified in PKCS #1 v1.5.
+  static bool Sign(RSAPrivateKey* key,
+                   HashAlgorithm hash_alg,
+                   const uint8* data,
+                   int data_len,
+                   std::vector<uint8>* signature);
+
+  // Update the signature with more data.
+  bool Update(const uint8* data_part, int data_part_len);
+
+  // Finalize the signature.
+  bool Final(std::vector<uint8>* signature);
+
+ private:
+  // Private constructor. Use the Create() method instead.
+  SignatureCreator();
+
+  RSAPrivateKey* key_;
+
+#if defined(USE_OPENSSL)
+  EVP_MD_CTX* sign_context_;
+#elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
+  SGNContextStr* sign_context_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(SignatureCreator);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SIGNATURE_CREATOR_H_
diff --git a/crypto/signature_creator_nss.cc b/crypto/signature_creator_nss.cc
new file mode 100644
index 0000000..47728b0
--- /dev/null
+++ b/crypto/signature_creator_nss.cc
@@ -0,0 +1,122 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/signature_creator.h"
+
+#include <cryptohi.h>
+#include <keyhi.h>
+#include <stdlib.h>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/nss_util.h"
+#include "crypto/rsa_private_key.h"
+
+namespace crypto {
+
+namespace {
+
+SECOidTag ToNSSSigOid(SignatureCreator::HashAlgorithm hash_alg) {
+  switch (hash_alg) {
+    case SignatureCreator::SHA1:
+      return SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION;
+    case SignatureCreator::SHA256:
+      return SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION;
+  }
+  return SEC_OID_UNKNOWN;
+}
+
+SECOidTag ToNSSHashOid(SignatureCreator::HashAlgorithm hash_alg) {
+  switch (hash_alg) {
+    case SignatureCreator::SHA1:
+      return SEC_OID_SHA1;
+    case SignatureCreator::SHA256:
+      return SEC_OID_SHA256;
+  }
+  return SEC_OID_UNKNOWN;
+}
+
+}  // namespace
+
+SignatureCreator::~SignatureCreator() {
+  if (sign_context_) {
+    SGN_DestroyContext(sign_context_, PR_TRUE);
+    sign_context_ = NULL;
+  }
+}
+
+// static
+SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key,
+                                           HashAlgorithm hash_alg) {
+  scoped_ptr<SignatureCreator> result(new SignatureCreator);
+  result->key_ = key;
+
+  result->sign_context_ = SGN_NewContext(ToNSSSigOid(hash_alg), key->key());
+  if (!result->sign_context_) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  SECStatus rv = SGN_Begin(result->sign_context_);
+  if (rv != SECSuccess) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  return result.release();
+}
+
+// static
+bool SignatureCreator::Sign(RSAPrivateKey* key,
+                            HashAlgorithm hash_alg,
+                            const uint8* data,
+                            int data_len,
+                            std::vector<uint8>* signature) {
+  SECItem data_item;
+  data_item.type = siBuffer;
+  data_item.data = const_cast<unsigned char*>(data);
+  data_item.len = data_len;
+
+  SECItem signature_item;
+  SECStatus rv = SGN_Digest(key->key(), ToNSSHashOid(hash_alg), &signature_item,
+                            &data_item);
+  if (rv != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+  signature->assign(signature_item.data,
+                    signature_item.data + signature_item.len);
+  SECITEM_FreeItem(&signature_item, PR_FALSE);
+  return true;
+}
+
+bool SignatureCreator::Update(const uint8* data_part, int data_part_len) {
+  SECStatus rv = SGN_Update(sign_context_, data_part, data_part_len);
+  if (rv != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+
+  return true;
+}
+
+bool SignatureCreator::Final(std::vector<uint8>* signature) {
+  SECItem signature_item;
+  SECStatus rv = SGN_End(sign_context_, &signature_item);
+  if (rv != SECSuccess) {
+    return false;
+  }
+  signature->assign(signature_item.data,
+                    signature_item.data + signature_item.len);
+  SECITEM_FreeItem(&signature_item, PR_FALSE);
+  return true;
+}
+
+SignatureCreator::SignatureCreator()
+    : key_(NULL),
+      sign_context_(NULL) {
+  EnsureNSSInit();
+}
+
+}  // namespace crypto
diff --git a/crypto/signature_creator_openssl.cc b/crypto/signature_creator_openssl.cc
new file mode 100644
index 0000000..7a1349b
--- /dev/null
+++ b/crypto/signature_creator_openssl.cc
@@ -0,0 +1,108 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/signature_creator.h"
+
+#include <openssl/evp.h>
+#include <openssl/rsa.h>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/stl_util.h"
+#include "crypto/openssl_util.h"
+#include "crypto/rsa_private_key.h"
+#include "crypto/scoped_openssl_types.h"
+
+namespace crypto {
+
+namespace {
+
+const EVP_MD* ToOpenSSLDigest(SignatureCreator::HashAlgorithm hash_alg) {
+  switch (hash_alg) {
+    case SignatureCreator::SHA1:
+      return EVP_sha1();
+    case SignatureCreator::SHA256:
+      return EVP_sha256();
+  }
+  return NULL;
+}
+
+int ToOpenSSLDigestType(SignatureCreator::HashAlgorithm hash_alg) {
+  switch (hash_alg) {
+    case SignatureCreator::SHA1:
+      return NID_sha1;
+    case SignatureCreator::SHA256:
+      return NID_sha256;
+  }
+  return NID_undef;
+}
+
+}  // namespace
+
+// static
+SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key,
+                                           HashAlgorithm hash_alg) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  scoped_ptr<SignatureCreator> result(new SignatureCreator);
+  result->key_ = key;
+  const EVP_MD* const digest = ToOpenSSLDigest(hash_alg);
+  DCHECK(digest);
+  if (!digest) {
+    return NULL;
+  }
+  if (!EVP_SignInit_ex(result->sign_context_, digest, NULL))
+    return NULL;
+  return result.release();
+}
+
+// static
+bool SignatureCreator::Sign(RSAPrivateKey* key,
+                            HashAlgorithm hash_alg,
+                            const uint8* data,
+                            int data_len,
+                            std::vector<uint8>* signature) {
+  ScopedRSA rsa_key(EVP_PKEY_get1_RSA(key->key()));
+  if (!rsa_key)
+    return false;
+  signature->resize(RSA_size(rsa_key.get()));
+
+  unsigned int len = 0;
+  if (!RSA_sign(ToOpenSSLDigestType(hash_alg), data, data_len,
+                vector_as_array(signature), &len, rsa_key.get())) {
+    signature->clear();
+    return false;
+  }
+  signature->resize(len);
+  return true;
+}
+
+SignatureCreator::SignatureCreator()
+    : sign_context_(EVP_MD_CTX_create()) {
+}
+
+SignatureCreator::~SignatureCreator() {
+  EVP_MD_CTX_destroy(sign_context_);
+}
+
+bool SignatureCreator::Update(const uint8* data_part, int data_part_len) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  return EVP_SignUpdate(sign_context_, data_part, data_part_len) == 1;
+}
+
+bool SignatureCreator::Final(std::vector<uint8>* signature) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  EVP_PKEY* key = key_->key();
+  signature->resize(EVP_PKEY_size(key));
+
+  unsigned int len = 0;
+  int rv = EVP_SignFinal(sign_context_, vector_as_array(signature), &len, key);
+  if (!rv) {
+    signature->clear();
+    return false;
+  }
+  signature->resize(len);
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/signature_creator_unittest.cc b/crypto/signature_creator_unittest.cc
new file mode 100644
index 0000000..694becd
--- /dev/null
+++ b/crypto/signature_creator_unittest.cc
@@ -0,0 +1,143 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <vector>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/sha1.h"
+#include "crypto/rsa_private_key.h"
+#include "crypto/sha2.h"
+#include "crypto/signature_creator.h"
+#include "crypto/signature_verifier.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+// This is the algorithm ID for SHA-1 with RSA encryption.
+const uint8 kSHA1WithRSAAlgorithmID[] = {
+  0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+  0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00
+};
+
+// This is the algorithm ID for SHA-1 with RSA encryption.
+const uint8 kSHA256WithRSAAlgorithmID[] = {
+  0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+  0xf7, 0x0d, 0x01, 0x01, 0x0B, 0x05, 0x00
+};
+
+}
+
+TEST(SignatureCreatorTest, BasicTest) {
+  // Do a verify round trip.
+  scoped_ptr<crypto::RSAPrivateKey> key_original(
+      crypto::RSAPrivateKey::Create(1024));
+  ASSERT_TRUE(key_original.get());
+
+  std::vector<uint8> key_info;
+  key_original->ExportPrivateKey(&key_info);
+  scoped_ptr<crypto::RSAPrivateKey> key(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
+  ASSERT_TRUE(key.get());
+
+  scoped_ptr<crypto::SignatureCreator> signer(
+      crypto::SignatureCreator::Create(key.get(),
+                                       crypto::SignatureCreator::SHA1));
+  ASSERT_TRUE(signer.get());
+
+  std::string data("Hello, World!");
+  ASSERT_TRUE(signer->Update(reinterpret_cast<const uint8*>(data.c_str()),
+                             data.size()));
+
+  std::vector<uint8> signature;
+  ASSERT_TRUE(signer->Final(&signature));
+
+  std::vector<uint8> public_key_info;
+  ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
+
+  crypto::SignatureVerifier verifier;
+  ASSERT_TRUE(verifier.VerifyInit(
+      kSHA1WithRSAAlgorithmID, sizeof(kSHA1WithRSAAlgorithmID),
+      &signature.front(), signature.size(),
+      &public_key_info.front(), public_key_info.size()));
+
+  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
+                        data.size());
+  ASSERT_TRUE(verifier.VerifyFinal());
+}
+
+TEST(SignatureCreatorTest, SignDigestTest) {
+  // Do a verify round trip.
+  scoped_ptr<crypto::RSAPrivateKey> key_original(
+      crypto::RSAPrivateKey::Create(1024));
+  ASSERT_TRUE(key_original.get());
+
+  std::vector<uint8> key_info;
+  key_original->ExportPrivateKey(&key_info);
+  scoped_ptr<crypto::RSAPrivateKey> key(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
+  ASSERT_TRUE(key.get());
+
+  std::string data("Hello, World!");
+  std::string sha1 = base::SHA1HashString(data);
+  // Sign sha1 of the input data.
+  std::vector<uint8> signature;
+  ASSERT_TRUE(crypto::SignatureCreator::Sign(
+      key.get(),
+      crypto::SignatureCreator::SHA1,
+      reinterpret_cast<const uint8*>(sha1.c_str()),
+      sha1.size(),
+      &signature));
+
+  std::vector<uint8> public_key_info;
+  ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
+
+  // Verify the input data.
+  crypto::SignatureVerifier verifier;
+  ASSERT_TRUE(verifier.VerifyInit(
+      kSHA1WithRSAAlgorithmID, sizeof(kSHA1WithRSAAlgorithmID),
+      &signature.front(), signature.size(),
+      &public_key_info.front(), public_key_info.size()));
+
+  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
+                        data.size());
+  ASSERT_TRUE(verifier.VerifyFinal());
+}
+
+TEST(SignatureCreatorTest, SignSHA256DigestTest) {
+  // Do a verify round trip.
+  scoped_ptr<crypto::RSAPrivateKey> key_original(
+      crypto::RSAPrivateKey::Create(1024));
+  ASSERT_TRUE(key_original.get());
+
+  std::vector<uint8> key_info;
+  key_original->ExportPrivateKey(&key_info);
+  scoped_ptr<crypto::RSAPrivateKey> key(
+      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
+  ASSERT_TRUE(key.get());
+
+  std::string data("Hello, World!");
+  std::string sha256 = crypto::SHA256HashString(data);
+  // Sign sha256 of the input data.
+  std::vector<uint8> signature;
+  ASSERT_TRUE(crypto::SignatureCreator::Sign(
+      key.get(),
+      crypto::SignatureCreator::HashAlgorithm::SHA256,
+      reinterpret_cast<const uint8*>(sha256.c_str()),
+      sha256.size(),
+      &signature));
+
+  std::vector<uint8> public_key_info;
+  ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
+
+  // Verify the input data.
+  crypto::SignatureVerifier verifier;
+  ASSERT_TRUE(verifier.VerifyInit(
+      kSHA256WithRSAAlgorithmID, sizeof(kSHA256WithRSAAlgorithmID),
+      &signature.front(), signature.size(),
+      &public_key_info.front(), public_key_info.size()));
+
+  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
+                        data.size());
+  ASSERT_TRUE(verifier.VerifyFinal());
+}
diff --git a/crypto/signature_verifier.h b/crypto/signature_verifier.h
new file mode 100644
index 0000000..fbf87d4
--- /dev/null
+++ b/crypto/signature_verifier.h
@@ -0,0 +1,145 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SIGNATURE_VERIFIER_H_
+#define CRYPTO_SIGNATURE_VERIFIER_H_
+
+#include <vector>
+
+#include "build/build_config.h"
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+#if defined(USE_OPENSSL)
+typedef struct env_md_st EVP_MD;
+typedef struct evp_pkey_ctx_st EVP_PKEY_CTX;
+#else
+typedef struct HASHContextStr HASHContext;
+typedef struct SECKEYPublicKeyStr SECKEYPublicKey;
+typedef struct VFYContextStr VFYContext;
+#endif
+
+namespace crypto {
+
+// The SignatureVerifier class verifies a signature using a bare public key
+// (as opposed to a certificate).
+class CRYPTO_EXPORT SignatureVerifier {
+ public:
+  // The set of supported hash functions. Extend as required.
+  enum HashAlgorithm {
+    SHA1,
+    SHA256,
+  };
+
+  SignatureVerifier();
+  ~SignatureVerifier();
+
+  // Streaming interface:
+
+  // Initiates a signature verification operation.  This should be followed
+  // by one or more VerifyUpdate calls and a VerifyFinal call.
+  // NOTE: for RSA-PSS signatures, use VerifyInitRSAPSS instead.
+  //
+  // The signature algorithm is specified as a DER encoded ASN.1
+  // AlgorithmIdentifier structure:
+  //   AlgorithmIdentifier  ::=  SEQUENCE  {
+  //       algorithm               OBJECT IDENTIFIER,
+  //       parameters              ANY DEFINED BY algorithm OPTIONAL  }
+  //
+  // The signature is encoded according to the signature algorithm, but it
+  // must not be further encoded in an ASN.1 BIT STRING.
+  // Note: An RSA signature is actually a big integer.  It must be in
+  // big-endian byte order.
+  //
+  // The public key is specified as a DER encoded ASN.1 SubjectPublicKeyInfo
+  // structure, which contains not only the public key but also its type
+  // (algorithm):
+  //   SubjectPublicKeyInfo  ::=  SEQUENCE  {
+  //       algorithm            AlgorithmIdentifier,
+  //       subjectPublicKey     BIT STRING  }
+  bool VerifyInit(const uint8* signature_algorithm,
+                  int signature_algorithm_len,
+                  const uint8* signature,
+                  int signature_len,
+                  const uint8* public_key_info,
+                  int public_key_info_len);
+
+  // Initiates a RSA-PSS signature verification operation.  This should be
+  // followed by one or more VerifyUpdate calls and a VerifyFinal call.
+  //
+  // The RSA-PSS signature algorithm parameters are specified with the
+  // |hash_alg|, |mask_hash_alg|, and |salt_len| arguments.
+  //
+  // An RSA-PSS signature is a nonnegative integer encoded as a byte string
+  // (of the same length as the RSA modulus) in big-endian byte order. It
+  // must not be further encoded in an ASN.1 BIT STRING.
+  //
+  // The public key is specified as a DER encoded ASN.1 SubjectPublicKeyInfo
+  // structure, which contains not only the public key but also its type
+  // (algorithm):
+  //   SubjectPublicKeyInfo  ::=  SEQUENCE  {
+  //       algorithm            AlgorithmIdentifier,
+  //       subjectPublicKey     BIT STRING  }
+  bool VerifyInitRSAPSS(HashAlgorithm hash_alg,
+                        HashAlgorithm mask_hash_alg,
+                        int salt_len,
+                        const uint8* signature,
+                        int signature_len,
+                        const uint8* public_key_info,
+                        int public_key_info_len);
+
+  // Feeds a piece of the data to the signature verifier.
+  void VerifyUpdate(const uint8* data_part, int data_part_len);
+
+  // Concludes a signature verification operation.  Returns true if the
+  // signature is valid.  Returns false if the signature is invalid or an
+  // error occurred.
+  bool VerifyFinal();
+
+  // Note: we can provide a one-shot interface if there is interest:
+  //   bool Verify(const uint8* data,
+  //               int data_len,
+  //               const uint8* signature_algorithm,
+  //               int signature_algorithm_len,
+  //               const uint8* signature,
+  //               int signature_len,
+  //               const uint8* public_key_info,
+  //               int public_key_info_len);
+
+ private:
+#if defined(USE_OPENSSL)
+  bool CommonInit(const EVP_MD* digest,
+                  const uint8* signature,
+                  int signature_len,
+                  const uint8* public_key_info,
+                  int public_key_info_len,
+                  EVP_PKEY_CTX** pkey_ctx);
+#else
+  static SECKEYPublicKey* DecodePublicKeyInfo(const uint8* public_key_info,
+                                              int public_key_info_len);
+#endif
+
+  void Reset();
+
+  std::vector<uint8> signature_;
+
+#if defined(USE_OPENSSL)
+  struct VerifyContext;
+  VerifyContext* verify_context_;
+#else
+  // Used for all signature types except RSA-PSS.
+  VFYContext* vfy_context_;
+
+  // Used for RSA-PSS signatures.
+  HashAlgorithm hash_alg_;
+  HashAlgorithm mask_hash_alg_;
+  unsigned int salt_len_;
+  SECKEYPublicKey* public_key_;
+  HASHContext* hash_context_;
+#endif
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SIGNATURE_VERIFIER_H_
diff --git a/crypto/signature_verifier_nss.cc b/crypto/signature_verifier_nss.cc
new file mode 100644
index 0000000..5be620d
--- /dev/null
+++ b/crypto/signature_verifier_nss.cc
@@ -0,0 +1,226 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/signature_verifier.h"
+
+#include <cryptohi.h>
+#include <keyhi.h>
+#include <pk11pub.h>
+#include <secerr.h>
+#include <sechash.h>
+#include <stdlib.h>
+
+#include "base/logging.h"
+#include "crypto/nss_util.h"
+#include "crypto/third_party/nss/chromium-nss.h"
+
+namespace crypto {
+
+namespace {
+
+HASH_HashType ToNSSHashType(SignatureVerifier::HashAlgorithm hash_alg) {
+  switch (hash_alg) {
+    case SignatureVerifier::SHA1:
+      return HASH_AlgSHA1;
+    case SignatureVerifier::SHA256:
+      return HASH_AlgSHA256;
+  }
+  return HASH_AlgNULL;
+}
+
+SECStatus VerifyRSAPSS_End(SECKEYPublicKey* public_key,
+                           HASHContext* hash_context,
+                           HASH_HashType mask_hash_alg,
+                           unsigned int salt_len,
+                           const unsigned char* signature,
+                           unsigned int signature_len) {
+  unsigned int hash_len = HASH_ResultLenContext(hash_context);
+  std::vector<unsigned char> hash(hash_len);
+  HASH_End(hash_context, &hash[0], &hash_len, hash.size());
+
+  unsigned int modulus_len = SECKEY_PublicKeyStrength(public_key);
+  if (signature_len != modulus_len) {
+    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+    return SECFailure;
+  }
+  std::vector<unsigned char> enc(signature_len);
+  SECStatus rv = PK11_PubEncryptRaw(public_key, &enc[0],
+                                    const_cast<unsigned char*>(signature),
+                                    signature_len, NULL);
+  if (rv != SECSuccess) {
+    LOG(WARNING) << "PK11_PubEncryptRaw failed";
+    return rv;
+  }
+  return emsa_pss_verify(&hash[0], &enc[0], enc.size(),
+                         HASH_GetType(hash_context), mask_hash_alg,
+                         salt_len);
+}
+
+}  // namespace
+
+SignatureVerifier::SignatureVerifier()
+    : vfy_context_(NULL),
+      hash_alg_(SHA1),
+      mask_hash_alg_(SHA1),
+      salt_len_(0),
+      public_key_(NULL),
+      hash_context_(NULL) {
+  EnsureNSSInit();
+}
+
+SignatureVerifier::~SignatureVerifier() {
+  Reset();
+}
+
+bool SignatureVerifier::VerifyInit(const uint8* signature_algorithm,
+                                   int signature_algorithm_len,
+                                   const uint8* signature,
+                                   int signature_len,
+                                   const uint8* public_key_info,
+                                   int public_key_info_len) {
+  if (vfy_context_ || hash_context_)
+    return false;
+
+  signature_.assign(signature, signature + signature_len);
+
+  SECKEYPublicKey* public_key = DecodePublicKeyInfo(public_key_info,
+                                                    public_key_info_len);
+  if (!public_key)
+    return false;
+
+  PLArenaPool* arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+  if (!arena) {
+    SECKEY_DestroyPublicKey(public_key);
+    return false;
+  }
+
+  SECItem sig_alg_der;
+  sig_alg_der.type = siBuffer;
+  sig_alg_der.data = const_cast<uint8*>(signature_algorithm);
+  sig_alg_der.len = signature_algorithm_len;
+  SECAlgorithmID sig_alg_id;
+  SECStatus rv;
+  rv = SEC_QuickDERDecodeItem(arena, &sig_alg_id,
+                              SEC_ASN1_GET(SECOID_AlgorithmIDTemplate),
+                              &sig_alg_der);
+  if (rv != SECSuccess) {
+    SECKEY_DestroyPublicKey(public_key);
+    PORT_FreeArena(arena, PR_TRUE);
+    return false;
+  }
+
+  SECItem sig;
+  sig.type = siBuffer;
+  sig.data = const_cast<uint8*>(signature);
+  sig.len = signature_len;
+  SECOidTag hash_alg_tag;
+  vfy_context_ = VFY_CreateContextWithAlgorithmID(public_key, &sig,
+                                                  &sig_alg_id, &hash_alg_tag,
+                                                  NULL);
+  SECKEY_DestroyPublicKey(public_key);  // Done with public_key.
+  PORT_FreeArena(arena, PR_TRUE);  // Done with sig_alg_id.
+  if (!vfy_context_) {
+    // A corrupted RSA signature could be detected without the data, so
+    // VFY_CreateContextWithAlgorithmID may fail with SEC_ERROR_BAD_SIGNATURE
+    // (-8182).
+    return false;
+  }
+
+  rv = VFY_Begin(vfy_context_);
+  if (rv != SECSuccess) {
+    NOTREACHED();
+    return false;
+  }
+  return true;
+}
+
+bool SignatureVerifier::VerifyInitRSAPSS(HashAlgorithm hash_alg,
+                                         HashAlgorithm mask_hash_alg,
+                                         int salt_len,
+                                         const uint8* signature,
+                                         int signature_len,
+                                         const uint8* public_key_info,
+                                         int public_key_info_len) {
+  if (vfy_context_ || hash_context_)
+    return false;
+
+  signature_.assign(signature, signature + signature_len);
+
+  SECKEYPublicKey* public_key = DecodePublicKeyInfo(public_key_info,
+                                                    public_key_info_len);
+  if (!public_key)
+    return false;
+
+  public_key_ = public_key;
+  hash_alg_ = hash_alg;
+  mask_hash_alg_ = mask_hash_alg;
+  salt_len_ = salt_len;
+  hash_context_ = HASH_Create(ToNSSHashType(hash_alg_));
+  if (!hash_context_)
+    return false;
+  HASH_Begin(hash_context_);
+  return true;
+}
+
+void SignatureVerifier::VerifyUpdate(const uint8* data_part,
+                                     int data_part_len) {
+  if (vfy_context_) {
+    SECStatus rv = VFY_Update(vfy_context_, data_part, data_part_len);
+    DCHECK_EQ(SECSuccess, rv);
+  } else {
+    HASH_Update(hash_context_, data_part, data_part_len);
+  }
+}
+
+bool SignatureVerifier::VerifyFinal() {
+  SECStatus rv;
+  if (vfy_context_) {
+    rv = VFY_End(vfy_context_);
+  } else {
+    rv = VerifyRSAPSS_End(public_key_, hash_context_,
+                          ToNSSHashType(mask_hash_alg_), salt_len_,
+                          signature_.data(),
+                          signature_.size());
+  }
+  Reset();
+
+  // If signature verification fails, the error code is
+  // SEC_ERROR_BAD_SIGNATURE (-8182).
+  return (rv == SECSuccess);
+}
+
+// static
+SECKEYPublicKey* SignatureVerifier::DecodePublicKeyInfo(
+    const uint8* public_key_info,
+    int public_key_info_len) {
+  CERTSubjectPublicKeyInfo* spki = NULL;
+  SECItem spki_der;
+  spki_der.type = siBuffer;
+  spki_der.data = const_cast<uint8*>(public_key_info);
+  spki_der.len = public_key_info_len;
+  spki = SECKEY_DecodeDERSubjectPublicKeyInfo(&spki_der);
+  if (!spki)
+    return NULL;
+  SECKEYPublicKey* public_key = SECKEY_ExtractPublicKey(spki);
+  SECKEY_DestroySubjectPublicKeyInfo(spki);  // Done with spki.
+  return public_key;
+}
+
+void SignatureVerifier::Reset() {
+  if (vfy_context_) {
+    VFY_DestroyContext(vfy_context_, PR_TRUE);
+    vfy_context_ = NULL;
+  }
+  if (hash_context_) {
+    HASH_Destroy(hash_context_);
+    hash_context_ = NULL;
+  }
+  if (public_key_) {
+    SECKEY_DestroyPublicKey(public_key_);
+    public_key_ = NULL;
+  }
+  signature_.clear();
+}
+
+}  // namespace crypto
diff --git a/crypto/signature_verifier_openssl.cc b/crypto/signature_verifier_openssl.cc
new file mode 100644
index 0000000..a855120
--- /dev/null
+++ b/crypto/signature_verifier_openssl.cc
@@ -0,0 +1,166 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/signature_verifier.h"
+
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+
+#include <vector>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/stl_util.h"
+#include "crypto/openssl_util.h"
+#include "crypto/scoped_openssl_types.h"
+
+namespace crypto {
+
+namespace {
+
+const EVP_MD* ToOpenSSLDigest(SignatureVerifier::HashAlgorithm hash_alg) {
+  switch (hash_alg) {
+    case SignatureVerifier::SHA1:
+      return EVP_sha1();
+    case SignatureVerifier::SHA256:
+      return EVP_sha256();
+  }
+  return NULL;
+}
+
+}  // namespace
+
+struct SignatureVerifier::VerifyContext {
+  ScopedEVP_MD_CTX ctx;
+};
+
+SignatureVerifier::SignatureVerifier()
+    : verify_context_(NULL) {
+}
+
+SignatureVerifier::~SignatureVerifier() {
+  Reset();
+}
+
+bool SignatureVerifier::VerifyInit(const uint8* signature_algorithm,
+                                   int signature_algorithm_len,
+                                   const uint8* signature,
+                                   int signature_len,
+                                   const uint8* public_key_info,
+                                   int public_key_info_len) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  ScopedOpenSSL<X509_ALGOR, X509_ALGOR_free>::Type algorithm(
+      d2i_X509_ALGOR(NULL, &signature_algorithm, signature_algorithm_len));
+  if (!algorithm.get())
+    return false;
+  int nid = OBJ_obj2nid(algorithm.get()->algorithm);
+  const EVP_MD* digest;
+  if (nid == NID_ecdsa_with_SHA1) {
+    digest = EVP_sha1();
+  } else if (nid == NID_ecdsa_with_SHA256) {
+    digest = EVP_sha256();
+  } else {
+    // This works for PKCS #1 v1.5 RSA signatures, but not for ECDSA
+    // signatures.
+    digest = EVP_get_digestbyobj(algorithm.get()->algorithm);
+  }
+  if (!digest)
+    return false;
+
+  return CommonInit(digest, signature, signature_len, public_key_info,
+                    public_key_info_len, NULL);
+}
+
+bool SignatureVerifier::VerifyInitRSAPSS(HashAlgorithm hash_alg,
+                                         HashAlgorithm mask_hash_alg,
+                                         int salt_len,
+                                         const uint8* signature,
+                                         int signature_len,
+                                         const uint8* public_key_info,
+                                         int public_key_info_len) {
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  const EVP_MD* const digest = ToOpenSSLDigest(hash_alg);
+  DCHECK(digest);
+  if (!digest) {
+    return false;
+  }
+
+  EVP_PKEY_CTX* pkey_ctx;
+  if (!CommonInit(digest, signature, signature_len, public_key_info,
+                  public_key_info_len, &pkey_ctx)) {
+    return false;
+  }
+
+  int rv = EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING);
+  if (rv != 1)
+    return false;
+  const EVP_MD* const mgf_digest = ToOpenSSLDigest(mask_hash_alg);
+  DCHECK(mgf_digest);
+  if (!mgf_digest) {
+    return false;
+  }
+  rv = EVP_PKEY_CTX_set_rsa_mgf1_md(pkey_ctx, mgf_digest);
+  if (rv != 1)
+    return false;
+  rv = EVP_PKEY_CTX_set_rsa_pss_saltlen(pkey_ctx, salt_len);
+  return rv == 1;
+}
+
+void SignatureVerifier::VerifyUpdate(const uint8* data_part,
+                                     int data_part_len) {
+  DCHECK(verify_context_);
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  int rv = EVP_DigestVerifyUpdate(verify_context_->ctx.get(),
+                                  data_part, data_part_len);
+  DCHECK_EQ(rv, 1);
+}
+
+bool SignatureVerifier::VerifyFinal() {
+  DCHECK(verify_context_);
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  int rv = EVP_DigestVerifyFinal(verify_context_->ctx.get(),
+                                 vector_as_array(&signature_),
+                                 signature_.size());
+  // rv is -1 if a DER-encoded ECDSA signature cannot be decoded correctly.
+  DCHECK_GE(rv, -1);
+  Reset();
+  return rv == 1;
+}
+
+bool SignatureVerifier::CommonInit(const EVP_MD* digest,
+                                   const uint8* signature,
+                                   int signature_len,
+                                   const uint8* public_key_info,
+                                   int public_key_info_len,
+                                   EVP_PKEY_CTX** pkey_ctx) {
+  if (verify_context_)
+    return false;
+
+  verify_context_ = new VerifyContext;
+
+  signature_.assign(signature, signature + signature_len);
+
+  // BIO_new_mem_buf is not const aware, but it does not modify the buffer.
+  char* data = reinterpret_cast<char*>(const_cast<uint8*>(public_key_info));
+  ScopedBIO bio(BIO_new_mem_buf(data, public_key_info_len));
+  if (!bio.get())
+    return false;
+
+  ScopedEVP_PKEY public_key(d2i_PUBKEY_bio(bio.get(), NULL));
+  if (!public_key.get())
+    return false;
+
+  verify_context_->ctx.reset(EVP_MD_CTX_create());
+  int rv = EVP_DigestVerifyInit(verify_context_->ctx.get(), pkey_ctx,
+                                digest, NULL, public_key.get());
+  return rv == 1;
+}
+
+void SignatureVerifier::Reset() {
+  delete verify_context_;
+  verify_context_ = NULL;
+  signature_.clear();
+}
+
+}  // namespace crypto
diff --git a/crypto/signature_verifier_unittest.cc b/crypto/signature_verifier_unittest.cc
new file mode 100644
index 0000000..3329799
--- /dev/null
+++ b/crypto/signature_verifier_unittest.cc
@@ -0,0 +1,1138 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/signature_verifier.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(SignatureVerifierTest, BasicTest) {
+  // The input data in this test comes from real certificates.
+  //
+  // tbs_certificate ("to-be-signed certificate", the part of a certificate
+  // that is signed), signature_algorithm, and algorithm come from the
+  // certificate of bugs.webkit.org.
+  //
+  // public_key_info comes from the certificate of the issuer, Go Daddy Secure
+  // Certification Authority.
+  //
+  // The bytes in the array initializers are formatted to expose the DER
+  // encoding of the ASN.1 structures.
+
+  // The data that is signed is the following ASN.1 structure:
+  //    TBSCertificate  ::=  SEQUENCE  {
+  //        ...  -- omitted, not important
+  //        }
+  const uint8 tbs_certificate[1017] = {
+    0x30, 0x82, 0x03, 0xf5,  // a SEQUENCE of length 1013 (0x3f5)
+    0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x43, 0xdd, 0x63, 0x30, 0x0d,
+    0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05,
+    0x00, 0x30, 0x81, 0xca, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,
+    0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55,
+    0x04, 0x08, 0x13, 0x07, 0x41, 0x72, 0x69, 0x7a, 0x6f, 0x6e, 0x61, 0x31,
+    0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x0a, 0x53, 0x63,
+    0x6f, 0x74, 0x74, 0x73, 0x64, 0x61, 0x6c, 0x65, 0x31, 0x1a, 0x30, 0x18,
+    0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x11, 0x47, 0x6f, 0x44, 0x61, 0x64,
+    0x64, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e,
+    0x31, 0x33, 0x30, 0x31, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x2a, 0x68,
+    0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x65, 0x72, 0x74, 0x69, 0x66,
+    0x69, 0x63, 0x61, 0x74, 0x65, 0x73, 0x2e, 0x67, 0x6f, 0x64, 0x61, 0x64,
+    0x64, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x70, 0x6f, 0x73,
+    0x69, 0x74, 0x6f, 0x72, 0x79, 0x31, 0x30, 0x30, 0x2e, 0x06, 0x03, 0x55,
+    0x04, 0x03, 0x13, 0x27, 0x47, 0x6f, 0x20, 0x44, 0x61, 0x64, 0x64, 0x79,
+    0x20, 0x53, 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x43, 0x65, 0x72, 0x74,
+    0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x41, 0x75,
+    0x74, 0x68, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x31, 0x11, 0x30, 0x0f, 0x06,
+    0x03, 0x55, 0x04, 0x05, 0x13, 0x08, 0x30, 0x37, 0x39, 0x36, 0x39, 0x32,
+    0x38, 0x37, 0x30, 0x1e, 0x17, 0x0d, 0x30, 0x38, 0x30, 0x33, 0x31, 0x38,
+    0x32, 0x33, 0x33, 0x35, 0x31, 0x39, 0x5a, 0x17, 0x0d, 0x31, 0x31, 0x30,
+    0x33, 0x31, 0x38, 0x32, 0x33, 0x33, 0x35, 0x31, 0x39, 0x5a, 0x30, 0x79,
+    0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55,
+    0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x13, 0x0a,
+    0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x12,
+    0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x09, 0x43, 0x75, 0x70,
+    0x65, 0x72, 0x74, 0x69, 0x6e, 0x6f, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03,
+    0x55, 0x04, 0x0a, 0x13, 0x0a, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x49,
+    0x6e, 0x63, 0x2e, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04, 0x0b,
+    0x13, 0x0c, 0x4d, 0x61, 0x63, 0x20, 0x4f, 0x53, 0x20, 0x46, 0x6f, 0x72,
+    0x67, 0x65, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13,
+    0x0c, 0x2a, 0x2e, 0x77, 0x65, 0x62, 0x6b, 0x69, 0x74, 0x2e, 0x6f, 0x72,
+    0x67, 0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+    0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30,
+    0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xa7, 0x62, 0x79, 0x41, 0xda, 0x28,
+    0xf2, 0xc0, 0x4f, 0xe0, 0x25, 0xaa, 0xa1, 0x2e, 0x3b, 0x30, 0x94, 0xb5,
+    0xc9, 0x26, 0x3a, 0x1b, 0xe2, 0xd0, 0xcc, 0xa2, 0x95, 0xe2, 0x91, 0xc0,
+    0xf0, 0x40, 0x9e, 0x27, 0x6e, 0xbd, 0x6e, 0xde, 0x7c, 0xb6, 0x30, 0x5c,
+    0xb8, 0x9b, 0x01, 0x2f, 0x92, 0x04, 0xa1, 0xef, 0x4a, 0xb1, 0x6c, 0xb1,
+    0x7e, 0x8e, 0xcd, 0xa6, 0xf4, 0x40, 0x73, 0x1f, 0x2c, 0x96, 0xad, 0xff,
+    0x2a, 0x6d, 0x0e, 0xba, 0x52, 0x84, 0x83, 0xb0, 0x39, 0xee, 0xc9, 0x39,
+    0xdc, 0x1e, 0x34, 0xd0, 0xd8, 0x5d, 0x7a, 0x09, 0xac, 0xa9, 0xee, 0xca,
+    0x65, 0xf6, 0x85, 0x3a, 0x6b, 0xee, 0xe4, 0x5c, 0x5e, 0xf8, 0xda, 0xd1,
+    0xce, 0x88, 0x47, 0xcd, 0x06, 0x21, 0xe0, 0xb9, 0x4b, 0xe4, 0x07, 0xcb,
+    0x57, 0xdc, 0xca, 0x99, 0x54, 0xf7, 0x0e, 0xd5, 0x17, 0x95, 0x05, 0x2e,
+    0xe9, 0xb1, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x82, 0x01, 0xce, 0x30,
+    0x82, 0x01, 0xca, 0x30, 0x09, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x04, 0x02,
+    0x30, 0x00, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03,
+    0x02, 0x05, 0xa0, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x16,
+    0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01,
+    0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x02, 0x30, 0x57,
+    0x06, 0x03, 0x55, 0x1d, 0x1f, 0x04, 0x50, 0x30, 0x4e, 0x30, 0x4c, 0xa0,
+    0x4a, 0xa0, 0x48, 0x86, 0x46, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f,
+    0x63, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x73,
+    0x2e, 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79, 0x2e, 0x63, 0x6f, 0x6d,
+    0x2f, 0x72, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x6f, 0x72, 0x79, 0x2f,
+    0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79, 0x65, 0x78, 0x74, 0x65, 0x6e,
+    0x64, 0x65, 0x64, 0x69, 0x73, 0x73, 0x75, 0x69, 0x6e, 0x67, 0x33, 0x2e,
+    0x63, 0x72, 0x6c, 0x30, 0x52, 0x06, 0x03, 0x55, 0x1d, 0x20, 0x04, 0x4b,
+    0x30, 0x49, 0x30, 0x47, 0x06, 0x0b, 0x60, 0x86, 0x48, 0x01, 0x86, 0xfd,
+    0x6d, 0x01, 0x07, 0x17, 0x02, 0x30, 0x38, 0x30, 0x36, 0x06, 0x08, 0x2b,
+    0x06, 0x01, 0x05, 0x05, 0x07, 0x02, 0x01, 0x16, 0x2a, 0x68, 0x74, 0x74,
+    0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63,
+    0x61, 0x74, 0x65, 0x73, 0x2e, 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79,
+    0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74,
+    0x6f, 0x72, 0x79, 0x30, 0x7f, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05,
+    0x07, 0x01, 0x01, 0x04, 0x73, 0x30, 0x71, 0x30, 0x23, 0x06, 0x08, 0x2b,
+    0x06, 0x01, 0x05, 0x05, 0x07, 0x30, 0x01, 0x86, 0x17, 0x68, 0x74, 0x74,
+    0x70, 0x3a, 0x2f, 0x2f, 0x6f, 0x63, 0x73, 0x70, 0x2e, 0x67, 0x6f, 0x64,
+    0x61, 0x64, 0x64, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x30, 0x4a, 0x06, 0x08,
+    0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x30, 0x02, 0x86, 0x3e, 0x68, 0x74,
+    0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69,
+    0x63, 0x61, 0x74, 0x65, 0x73, 0x2e, 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64,
+    0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x70, 0x6f, 0x73, 0x69,
+    0x74, 0x6f, 0x72, 0x79, 0x2f, 0x67, 0x64, 0x5f, 0x69, 0x6e, 0x74, 0x65,
+    0x72, 0x6d, 0x65, 0x64, 0x69, 0x61, 0x74, 0x65, 0x2e, 0x63, 0x72, 0x74,
+    0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x48,
+    0xdf, 0x60, 0x32, 0xcc, 0x89, 0x01, 0xb6, 0xdc, 0x2f, 0xe3, 0x73, 0xb5,
+    0x9c, 0x16, 0x58, 0x32, 0x68, 0xa9, 0xc3, 0x30, 0x1f, 0x06, 0x03, 0x55,
+    0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0xfd, 0xac, 0x61, 0x32,
+    0x93, 0x6c, 0x45, 0xd6, 0xe2, 0xee, 0x85, 0x5f, 0x9a, 0xba, 0xe7, 0x76,
+    0x99, 0x68, 0xcc, 0xe7, 0x30, 0x23, 0x06, 0x03, 0x55, 0x1d, 0x11, 0x04,
+    0x1c, 0x30, 0x1a, 0x82, 0x0c, 0x2a, 0x2e, 0x77, 0x65, 0x62, 0x6b, 0x69,
+    0x74, 0x2e, 0x6f, 0x72, 0x67, 0x82, 0x0a, 0x77, 0x65, 0x62, 0x6b, 0x69,
+    0x74, 0x2e, 0x6f, 0x72, 0x67
+  };
+
+  // The signature algorithm is specified as the following ASN.1 structure:
+  //    AlgorithmIdentifier  ::=  SEQUENCE  {
+  //        algorithm               OBJECT IDENTIFIER,
+  //        parameters              ANY DEFINED BY algorithm OPTIONAL  }
+  //
+  const uint8 signature_algorithm[15] = {
+    0x30, 0x0d,  // a SEQUENCE of length 13 (0xd)
+      0x06, 0x09,  // an OBJECT IDENTIFIER of length 9
+        // 1.2.840.113549.1.1.5 - sha1WithRSAEncryption
+        0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05,
+      0x05, 0x00,  // a NULL of length 0
+  };
+
+  // RSA signature, a big integer in the big-endian byte order.
+  const uint8 signature[256] = {
+    0x1e, 0x6a, 0xe7, 0xe0, 0x4f, 0xe7, 0x4d, 0xd0, 0x69, 0x7c, 0xf8, 0x8f,
+    0x99, 0xb4, 0x18, 0x95, 0x36, 0x24, 0x0f, 0x0e, 0xa3, 0xea, 0x34, 0x37,
+    0xf4, 0x7d, 0xd5, 0x92, 0x35, 0x53, 0x72, 0x76, 0x3f, 0x69, 0xf0, 0x82,
+    0x56, 0xe3, 0x94, 0x7a, 0x1d, 0x1a, 0x81, 0xaf, 0x9f, 0xc7, 0x43, 0x01,
+    0x64, 0xd3, 0x7c, 0x0d, 0xc8, 0x11, 0x4e, 0x4a, 0xe6, 0x1a, 0xc3, 0x01,
+    0x74, 0xe8, 0x35, 0x87, 0x5c, 0x61, 0xaa, 0x8a, 0x46, 0x06, 0xbe, 0x98,
+    0x95, 0x24, 0x9e, 0x01, 0xe3, 0xe6, 0xa0, 0x98, 0xee, 0x36, 0x44, 0x56,
+    0x8d, 0x23, 0x9c, 0x65, 0xea, 0x55, 0x6a, 0xdf, 0x66, 0xee, 0x45, 0xe8,
+    0xa0, 0xe9, 0x7d, 0x9a, 0xba, 0x94, 0xc5, 0xc8, 0xc4, 0x4b, 0x98, 0xff,
+    0x9a, 0x01, 0x31, 0x6d, 0xf9, 0x2b, 0x58, 0xe7, 0xe7, 0x2a, 0xc5, 0x4d,
+    0xbb, 0xbb, 0xcd, 0x0d, 0x70, 0xe1, 0xad, 0x03, 0xf5, 0xfe, 0xf4, 0x84,
+    0x71, 0x08, 0xd2, 0xbc, 0x04, 0x7b, 0x26, 0x1c, 0xa8, 0x0f, 0x9c, 0xd8,
+    0x12, 0x6a, 0x6f, 0x2b, 0x67, 0xa1, 0x03, 0x80, 0x9a, 0x11, 0x0b, 0xe9,
+    0xe0, 0xb5, 0xb3, 0xb8, 0x19, 0x4e, 0x0c, 0xa4, 0xd9, 0x2b, 0x3b, 0xc2,
+    0xca, 0x20, 0xd3, 0x0c, 0xa4, 0xff, 0x93, 0x13, 0x1f, 0xfc, 0xba, 0x94,
+    0x93, 0x8c, 0x64, 0x15, 0x2e, 0x28, 0xa9, 0x55, 0x8c, 0x2c, 0x48, 0xd3,
+    0xd3, 0xc1, 0x50, 0x69, 0x19, 0xe8, 0x34, 0xd3, 0xf1, 0x04, 0x9f, 0x0a,
+    0x7a, 0x21, 0x87, 0xbf, 0xb9, 0x59, 0x37, 0x2e, 0xf4, 0x71, 0xa5, 0x3e,
+    0xbe, 0xcd, 0x70, 0x83, 0x18, 0xf8, 0x8a, 0x72, 0x85, 0x45, 0x1f, 0x08,
+    0x01, 0x6f, 0x37, 0xf5, 0x2b, 0x7b, 0xea, 0xb9, 0x8b, 0xa3, 0xcc, 0xfd,
+    0x35, 0x52, 0xdd, 0x66, 0xde, 0x4f, 0x30, 0xc5, 0x73, 0x81, 0xb6, 0xe8,
+    0x3c, 0xd8, 0x48, 0x8a
+  };
+
+  // The public key is specified as the following ASN.1 structure:
+  //   SubjectPublicKeyInfo  ::=  SEQUENCE  {
+  //       algorithm            AlgorithmIdentifier,
+  //       subjectPublicKey     BIT STRING  }
+  const uint8 public_key_info[294] = {
+    0x30, 0x82, 0x01, 0x22,  // a SEQUENCE of length 290 (0x122)
+      // algorithm
+      0x30, 0x0d,  // a SEQUENCE of length 13
+        0x06, 0x09,  // an OBJECT IDENTIFIER of length 9
+          0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
+        0x05, 0x00,  // a NULL of length 0
+      // subjectPublicKey
+      0x03, 0x82, 0x01, 0x0f,  // a BIT STRING of length 271 (0x10f)
+        0x00,  // number of unused bits
+        0x30, 0x82, 0x01, 0x0a,  // a SEQUENCE of length 266 (0x10a)
+          // modulus
+          0x02, 0x82, 0x01, 0x01,  // an INTEGER of length 257 (0x101)
+            0x00, 0xc4, 0x2d, 0xd5, 0x15, 0x8c, 0x9c, 0x26, 0x4c, 0xec,
+            0x32, 0x35, 0xeb, 0x5f, 0xb8, 0x59, 0x01, 0x5a, 0xa6, 0x61,
+            0x81, 0x59, 0x3b, 0x70, 0x63, 0xab, 0xe3, 0xdc, 0x3d, 0xc7,
+            0x2a, 0xb8, 0xc9, 0x33, 0xd3, 0x79, 0xe4, 0x3a, 0xed, 0x3c,
+            0x30, 0x23, 0x84, 0x8e, 0xb3, 0x30, 0x14, 0xb6, 0xb2, 0x87,
+            0xc3, 0x3d, 0x95, 0x54, 0x04, 0x9e, 0xdf, 0x99, 0xdd, 0x0b,
+            0x25, 0x1e, 0x21, 0xde, 0x65, 0x29, 0x7e, 0x35, 0xa8, 0xa9,
+            0x54, 0xeb, 0xf6, 0xf7, 0x32, 0x39, 0xd4, 0x26, 0x55, 0x95,
+            0xad, 0xef, 0xfb, 0xfe, 0x58, 0x86, 0xd7, 0x9e, 0xf4, 0x00,
+            0x8d, 0x8c, 0x2a, 0x0c, 0xbd, 0x42, 0x04, 0xce, 0xa7, 0x3f,
+            0x04, 0xf6, 0xee, 0x80, 0xf2, 0xaa, 0xef, 0x52, 0xa1, 0x69,
+            0x66, 0xda, 0xbe, 0x1a, 0xad, 0x5d, 0xda, 0x2c, 0x66, 0xea,
+            0x1a, 0x6b, 0xbb, 0xe5, 0x1a, 0x51, 0x4a, 0x00, 0x2f, 0x48,
+            0xc7, 0x98, 0x75, 0xd8, 0xb9, 0x29, 0xc8, 0xee, 0xf8, 0x66,
+            0x6d, 0x0a, 0x9c, 0xb3, 0xf3, 0xfc, 0x78, 0x7c, 0xa2, 0xf8,
+            0xa3, 0xf2, 0xb5, 0xc3, 0xf3, 0xb9, 0x7a, 0x91, 0xc1, 0xa7,
+            0xe6, 0x25, 0x2e, 0x9c, 0xa8, 0xed, 0x12, 0x65, 0x6e, 0x6a,
+            0xf6, 0x12, 0x44, 0x53, 0x70, 0x30, 0x95, 0xc3, 0x9c, 0x2b,
+            0x58, 0x2b, 0x3d, 0x08, 0x74, 0x4a, 0xf2, 0xbe, 0x51, 0xb0,
+            0xbf, 0x87, 0xd0, 0x4c, 0x27, 0x58, 0x6b, 0xb5, 0x35, 0xc5,
+            0x9d, 0xaf, 0x17, 0x31, 0xf8, 0x0b, 0x8f, 0xee, 0xad, 0x81,
+            0x36, 0x05, 0x89, 0x08, 0x98, 0xcf, 0x3a, 0xaf, 0x25, 0x87,
+            0xc0, 0x49, 0xea, 0xa7, 0xfd, 0x67, 0xf7, 0x45, 0x8e, 0x97,
+            0xcc, 0x14, 0x39, 0xe2, 0x36, 0x85, 0xb5, 0x7e, 0x1a, 0x37,
+            0xfd, 0x16, 0xf6, 0x71, 0x11, 0x9a, 0x74, 0x30, 0x16, 0xfe,
+            0x13, 0x94, 0xa3, 0x3f, 0x84, 0x0d, 0x4f,
+          // public exponent
+          0x02, 0x03,  // an INTEGER of length 3
+             0x01, 0x00, 0x01
+  };
+
+  // We use the signature verifier to perform four signature verification
+  // tests.
+  crypto::SignatureVerifier verifier;
+  bool ok;
+
+  // Test 1: feed all of the data to the verifier at once (a single
+  // VerifyUpdate call).
+  ok = verifier.VerifyInit(signature_algorithm,
+                           sizeof(signature_algorithm),
+                           signature, sizeof(signature),
+                           public_key_info, sizeof(public_key_info));
+  EXPECT_TRUE(ok);
+  verifier.VerifyUpdate(tbs_certificate, sizeof(tbs_certificate));
+  ok = verifier.VerifyFinal();
+  EXPECT_TRUE(ok);
+
+  // Test 2: feed the data to the verifier in three parts (three VerifyUpdate
+  // calls).
+  ok = verifier.VerifyInit(signature_algorithm,
+                           sizeof(signature_algorithm),
+                           signature, sizeof(signature),
+                           public_key_info, sizeof(public_key_info));
+  EXPECT_TRUE(ok);
+  verifier.VerifyUpdate(tbs_certificate,       256);
+  verifier.VerifyUpdate(tbs_certificate + 256, 256);
+  verifier.VerifyUpdate(tbs_certificate + 512, sizeof(tbs_certificate) - 512);
+  ok = verifier.VerifyFinal();
+  EXPECT_TRUE(ok);
+
+  // Test 3: verify the signature with incorrect data.
+  uint8 bad_tbs_certificate[sizeof(tbs_certificate)];
+  memcpy(bad_tbs_certificate, tbs_certificate, sizeof(tbs_certificate));
+  bad_tbs_certificate[10] += 1;  // Corrupt one byte of the data.
+  ok = verifier.VerifyInit(signature_algorithm,
+                           sizeof(signature_algorithm),
+                           signature, sizeof(signature),
+                           public_key_info, sizeof(public_key_info));
+  EXPECT_TRUE(ok);
+  verifier.VerifyUpdate(bad_tbs_certificate, sizeof(bad_tbs_certificate));
+  ok = verifier.VerifyFinal();
+  EXPECT_FALSE(ok);
+
+  // Test 4: verify a bad signature.
+  uint8 bad_signature[sizeof(signature)];
+  memcpy(bad_signature, signature, sizeof(signature));
+  bad_signature[10] += 1;  // Corrupt one byte of the signature.
+  ok = verifier.VerifyInit(signature_algorithm,
+                           sizeof(signature_algorithm),
+                           bad_signature, sizeof(bad_signature),
+                           public_key_info, sizeof(public_key_info));
+
+  // A crypto library (e.g., NSS) may detect that the signature is corrupted
+  // and cause VerifyInit to return false, so it is fine for 'ok' to be false.
+  if (ok) {
+    verifier.VerifyUpdate(tbs_certificate, sizeof(tbs_certificate));
+    ok = verifier.VerifyFinal();
+    EXPECT_FALSE(ok);
+  }
+}
+
+//////////////////////////////////////////////////////////////////////
+//
+// RSA-PSS signature verification known answer test
+//
+//////////////////////////////////////////////////////////////////////
+
+// The following RSA-PSS signature test vectors come from the pss-vect.txt
+// file downloaded from
+// ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip.
+//
+// For each key, 6 random messages of length between 1 and 256 octets have
+// been RSASSA-PSS signed.
+//
+// Hash function: SHA-1
+// Mask generation function: MGF1 with SHA-1
+// Salt length: 20 octets
+
+// Example 1: A 1024-bit RSA Key Pair"
+
+// RSA modulus n:
+static const char rsa_modulus_n_1[] =
+  "a5 6e 4a 0e 70 10 17 58 9a 51 87 dc 7e a8 41 d1 "
+  "56 f2 ec 0e 36 ad 52 a4 4d fe b1 e6 1f 7a d9 91 "
+  "d8 c5 10 56 ff ed b1 62 b4 c0 f2 83 a1 2a 88 a3 "
+  "94 df f5 26 ab 72 91 cb b3 07 ce ab fc e0 b1 df "
+  "d5 cd 95 08 09 6d 5b 2b 8b 6d f5 d6 71 ef 63 77 "
+  "c0 92 1c b2 3c 27 0a 70 e2 59 8e 6f f8 9d 19 f1 "
+  "05 ac c2 d3 f0 cb 35 f2 92 80 e1 38 6b 6f 64 c4 "
+  "ef 22 e1 e1 f2 0d 0c e8 cf fb 22 49 bd 9a 21 37 ";
+// RSA public exponent e: "
+static const char rsa_public_exponent_e_1[] =
+  "01 00 01 ";
+
+// RSASSA-PSS Signature Example 1.1
+// Message to be signed:
+static const char message_1_1[] =
+  "cd c8 7d a2 23 d7 86 df 3b 45 e0 bb bc 72 13 26 "
+  "d1 ee 2a f8 06 cc 31 54 75 cc 6f 0d 9c 66 e1 b6 "
+  "23 71 d4 5c e2 39 2e 1a c9 28 44 c3 10 10 2f 15 "
+  "6a 0d 8d 52 c1 f4 c4 0b a3 aa 65 09 57 86 cb 76 "
+  "97 57 a6 56 3b a9 58 fe d0 bc c9 84 e8 b5 17 a3 "
+  "d5 f5 15 b2 3b 8a 41 e7 4a a8 67 69 3f 90 df b0 "
+  "61 a6 e8 6d fa ae e6 44 72 c0 0e 5f 20 94 57 29 "
+  "cb eb e7 7f 06 ce 78 e0 8f 40 98 fb a4 1f 9d 61 "
+  "93 c0 31 7e 8b 60 d4 b6 08 4a cb 42 d2 9e 38 08 "
+  "a3 bc 37 2d 85 e3 31 17 0f cb f7 cc 72 d0 b7 1c "
+  "29 66 48 b3 a4 d1 0f 41 62 95 d0 80 7a a6 25 ca "
+  "b2 74 4f d9 ea 8f d2 23 c4 25 37 02 98 28 bd 16 "
+  "be 02 54 6f 13 0f d2 e3 3b 93 6d 26 76 e0 8a ed "
+  "1b 73 31 8b 75 0a 01 67 d0 ";
+// Salt:
+static const char salt_1_1[] =
+  "de e9 59 c7 e0 64 11 36 14 20 ff 80 18 5e d5 7f "
+  "3e 67 76 af ";
+// Signature:
+static const char signature_1_1[] =
+  "90 74 30 8f b5 98 e9 70 1b 22 94 38 8e 52 f9 71 "
+  "fa ac 2b 60 a5 14 5a f1 85 df 52 87 b5 ed 28 87 "
+  "e5 7c e7 fd 44 dc 86 34 e4 07 c8 e0 e4 36 0b c2 "
+  "26 f3 ec 22 7f 9d 9e 54 63 8e 8d 31 f5 05 12 15 "
+  "df 6e bb 9c 2f 95 79 aa 77 59 8a 38 f9 14 b5 b9 "
+  "c1 bd 83 c4 e2 f9 f3 82 a0 d0 aa 35 42 ff ee 65 "
+  "98 4a 60 1b c6 9e b2 8d eb 27 dc a1 2c 82 c2 d4 "
+  "c3 f6 6c d5 00 f1 ff 2b 99 4d 8a 4e 30 cb b3 3c ";
+
+// RSASSA-PSS Signature Example 1.2
+// Message to be signed:
+static const char message_1_2[] =
+  "85 13 84 cd fe 81 9c 22 ed 6c 4c cb 30 da eb 5c "
+  "f0 59 bc 8e 11 66 b7 e3 53 0c 4c 23 3e 2b 5f 8f "
+  "71 a1 cc a5 82 d4 3e cc 72 b1 bc a1 6d fc 70 13 "
+  "22 6b 9e ";
+// Salt:
+static const char salt_1_2[] =
+  "ef 28 69 fa 40 c3 46 cb 18 3d ab 3d 7b ff c9 8f "
+  "d5 6d f4 2d ";
+// Signature:
+static const char signature_1_2[] =
+  "3e f7 f4 6e 83 1b f9 2b 32 27 41 42 a5 85 ff ce "
+  "fb dc a7 b3 2a e9 0d 10 fb 0f 0c 72 99 84 f0 4e "
+  "f2 9a 9d f0 78 07 75 ce 43 73 9b 97 83 83 90 db "
+  "0a 55 05 e6 3d e9 27 02 8d 9d 29 b2 19 ca 2c 45 "
+  "17 83 25 58 a5 5d 69 4a 6d 25 b9 da b6 60 03 c4 "
+  "cc cd 90 78 02 19 3b e5 17 0d 26 14 7d 37 b9 35 "
+  "90 24 1b e5 1c 25 05 5f 47 ef 62 75 2c fb e2 14 "
+  "18 fa fe 98 c2 2c 4d 4d 47 72 4f db 56 69 e8 43 ";
+
+// RSASSA-PSS Signature Example 1.3
+// Message to be signed:
+static const char message_1_3[] =
+  "a4 b1 59 94 17 61 c4 0c 6a 82 f2 b8 0d 1b 94 f5 "
+  "aa 26 54 fd 17 e1 2d 58 88 64 67 9b 54 cd 04 ef "
+  "8b d0 30 12 be 8d c3 7f 4b 83 af 79 63 fa ff 0d "
+  "fa 22 54 77 43 7c 48 01 7f f2 be 81 91 cf 39 55 "
+  "fc 07 35 6e ab 3f 32 2f 7f 62 0e 21 d2 54 e5 db "
+  "43 24 27 9f e0 67 e0 91 0e 2e 81 ca 2c ab 31 c7 "
+  "45 e6 7a 54 05 8e b5 0d 99 3c db 9e d0 b4 d0 29 "
+  "c0 6d 21 a9 4c a6 61 c3 ce 27 fa e1 d6 cb 20 f4 "
+  "56 4d 66 ce 47 67 58 3d 0e 5f 06 02 15 b5 90 17 "
+  "be 85 ea 84 89 39 12 7b d8 c9 c4 d4 7b 51 05 6c "
+  "03 1c f3 36 f1 7c 99 80 f3 b8 f5 b9 b6 87 8e 8b "
+  "79 7a a4 3b 88 26 84 33 3e 17 89 3f e9 ca a6 aa "
+  "29 9f 7e d1 a1 8e e2 c5 48 64 b7 b2 b9 9b 72 61 "
+  "8f b0 25 74 d1 39 ef 50 f0 19 c9 ee f4 16 97 13 "
+  "38 e7 d4 70 ";
+// Salt:
+static const char salt_1_3[] =
+  "71 0b 9c 47 47 d8 00 d4 de 87 f1 2a fd ce 6d f1 "
+  "81 07 cc 77 ";
+// Signature:
+static const char signature_1_3[] =
+  "66 60 26 fb a7 1b d3 e7 cf 13 15 7c c2 c5 1a 8e "
+  "4a a6 84 af 97 78 f9 18 49 f3 43 35 d1 41 c0 01 "
+  "54 c4 19 76 21 f9 62 4a 67 5b 5a bc 22 ee 7d 5b "
+  "aa ff aa e1 c9 ba ca 2c c3 73 b3 f3 3e 78 e6 14 "
+  "3c 39 5a 91 aa 7f ac a6 64 eb 73 3a fd 14 d8 82 "
+  "72 59 d9 9a 75 50 fa ca 50 1e f2 b0 4e 33 c2 3a "
+  "a5 1f 4b 9e 82 82 ef db 72 8c c0 ab 09 40 5a 91 "
+  "60 7c 63 69 96 1b c8 27 0d 2d 4f 39 fc e6 12 b1 ";
+
+// RSASSA-PSS Signature Example 1.4
+// Message to be signed:
+static const char message_1_4[] =
+  "bc 65 67 47 fa 9e af b3 f0 ";
+// Salt:
+static const char salt_1_4[] =
+  "05 6f 00 98 5d e1 4d 8e f5 ce a9 e8 2f 8c 27 be "
+  "f7 20 33 5e ";
+// Signature:
+static const char signature_1_4[] =
+  "46 09 79 3b 23 e9 d0 93 62 dc 21 bb 47 da 0b 4f "
+  "3a 76 22 64 9a 47 d4 64 01 9b 9a ea fe 53 35 9c "
+  "17 8c 91 cd 58 ba 6b cb 78 be 03 46 a7 bc 63 7f "
+  "4b 87 3d 4b ab 38 ee 66 1f 19 96 34 c5 47 a1 ad "
+  "84 42 e0 3d a0 15 b1 36 e5 43 f7 ab 07 c0 c1 3e "
+  "42 25 b8 de 8c ce 25 d4 f6 eb 84 00 f8 1f 7e 18 "
+  "33 b7 ee 6e 33 4d 37 09 64 ca 79 fd b8 72 b4 d7 "
+  "52 23 b5 ee b0 81 01 59 1f b5 32 d1 55 a6 de 87 ";
+
+// RSASSA-PSS Signature Example 1.5
+// Message to be signed:
+static const char message_1_5[] =
+  "b4 55 81 54 7e 54 27 77 0c 76 8e 8b 82 b7 55 64 "
+  "e0 ea 4e 9c 32 59 4d 6b ff 70 65 44 de 0a 87 76 "
+  "c7 a8 0b 45 76 55 0e ee 1b 2a ca bc 7e 8b 7d 3e "
+  "f7 bb 5b 03 e4 62 c1 10 47 ea dd 00 62 9a e5 75 "
+  "48 0a c1 47 0f e0 46 f1 3a 2b f5 af 17 92 1d c4 "
+  "b0 aa 8b 02 be e6 33 49 11 65 1d 7f 85 25 d1 0f "
+  "32 b5 1d 33 be 52 0d 3d df 5a 70 99 55 a3 df e7 "
+  "82 83 b9 e0 ab 54 04 6d 15 0c 17 7f 03 7f dc cc "
+  "5b e4 ea 5f 68 b5 e5 a3 8c 9d 7e dc cc c4 97 5f "
+  "45 5a 69 09 b4 ";
+// Salt:
+static const char salt_1_5[] =
+  "80 e7 0f f8 6a 08 de 3e c6 09 72 b3 9b 4f bf dc "
+  "ea 67 ae 8e ";
+// Signature:
+static const char signature_1_5[] =
+  "1d 2a ad 22 1c a4 d3 1d df 13 50 92 39 01 93 98 "
+  "e3 d1 4b 32 dc 34 dc 5a f4 ae ae a3 c0 95 af 73 "
+  "47 9c f0 a4 5e 56 29 63 5a 53 a0 18 37 76 15 b1 "
+  "6c b9 b1 3b 3e 09 d6 71 eb 71 e3 87 b8 54 5c 59 "
+  "60 da 5a 64 77 6e 76 8e 82 b2 c9 35 83 bf 10 4c "
+  "3f db 23 51 2b 7b 4e 89 f6 33 dd 00 63 a5 30 db "
+  "45 24 b0 1c 3f 38 4c 09 31 0e 31 5a 79 dc d3 d6 "
+  "84 02 2a 7f 31 c8 65 a6 64 e3 16 97 8b 75 9f ad ";
+
+// RSASSA-PSS Signature Example 1.6
+// Message to be signed:
+static const char message_1_6[] =
+  "10 aa e9 a0 ab 0b 59 5d 08 41 20 7b 70 0d 48 d7 "
+  "5f ae dd e3 b7 75 cd 6b 4c c8 8a e0 6e 46 94 ec "
+  "74 ba 18 f8 52 0d 4f 5e a6 9c bb e7 cc 2b eb a4 "
+  "3e fd c1 02 15 ac 4e b3 2d c3 02 a1 f5 3d c6 c4 "
+  "35 22 67 e7 93 6c fe bf 7c 8d 67 03 57 84 a3 90 "
+  "9f a8 59 c7 b7 b5 9b 8e 39 c5 c2 34 9f 18 86 b7 "
+  "05 a3 02 67 d4 02 f7 48 6a b4 f5 8c ad 5d 69 ad "
+  "b1 7a b8 cd 0c e1 ca f5 02 5a f4 ae 24 b1 fb 87 "
+  "94 c6 07 0c c0 9a 51 e2 f9 91 13 11 e3 87 7d 00 "
+  "44 c7 1c 57 a9 93 39 50 08 80 6b 72 3a c3 83 73 "
+  "d3 95 48 18 18 52 8c 1e 70 53 73 92 82 05 35 29 "
+  "51 0e 93 5c d0 fa 77 b8 fa 53 cc 2d 47 4b d4 fb "
+  "3c c5 c6 72 d6 ff dc 90 a0 0f 98 48 71 2c 4b cf "
+  "e4 6c 60 57 36 59 b1 1e 64 57 e8 61 f0 f6 04 b6 "
+  "13 8d 14 4f 8c e4 e2 da 73 ";
+// Salt:
+static const char salt_1_6[] =
+  "a8 ab 69 dd 80 1f 00 74 c2 a1 fc 60 64 98 36 c6 "
+  "16 d9 96 81 ";
+// Signature:
+static const char signature_1_6[] =
+  "2a 34 f6 12 5e 1f 6b 0b f9 71 e8 4f bd 41 c6 32 "
+  "be 8f 2c 2a ce 7d e8 b6 92 6e 31 ff 93 e9 af 98 "
+  "7f bc 06 e5 1e 9b e1 4f 51 98 f9 1f 3f 95 3b d6 "
+  "7d a6 0a 9d f5 97 64 c3 dc 0f e0 8e 1c be f0 b7 "
+  "5f 86 8d 10 ad 3f ba 74 9f ef 59 fb 6d ac 46 a0 "
+  "d6 e5 04 36 93 31 58 6f 58 e4 62 8f 39 aa 27 89 "
+  "82 54 3b c0 ee b5 37 dc 61 95 80 19 b3 94 fb 27 "
+  "3f 21 58 58 a0 a0 1a c4 d6 50 b9 55 c6 7f 4c 58 ";
+
+// Example 9: A 1536-bit RSA Key Pair
+
+// RSA modulus n:
+static const char rsa_modulus_n_9[] =
+  "e6 bd 69 2a c9 66 45 79 04 03 fd d0 f5 be b8 b9 "
+  "bf 92 ed 10 00 7f c3 65 04 64 19 dd 06 c0 5c 5b "
+  "5b 2f 48 ec f9 89 e4 ce 26 91 09 97 9c bb 40 b4 "
+  "a0 ad 24 d2 24 83 d1 ee 31 5a d4 cc b1 53 42 68 "
+  "35 26 91 c5 24 f6 dd 8e 6c 29 d2 24 cf 24 69 73 "
+  "ae c8 6c 5b f6 b1 40 1a 85 0d 1b 9a d1 bb 8c bc "
+  "ec 47 b0 6f 0f 8c 7f 45 d3 fc 8f 31 92 99 c5 43 "
+  "3d db c2 b3 05 3b 47 de d2 ec d4 a4 ca ef d6 14 "
+  "83 3d c8 bb 62 2f 31 7e d0 76 b8 05 7f e8 de 3f "
+  "84 48 0a d5 e8 3e 4a 61 90 4a 4f 24 8f b3 97 02 "
+  "73 57 e1 d3 0e 46 31 39 81 5c 6f d4 fd 5a c5 b8 "
+  "17 2a 45 23 0e cb 63 18 a0 4f 14 55 d8 4e 5a 8b ";
+// RSA public exponent e:
+static const char rsa_public_exponent_e_9[] =
+  "01 00 01 ";
+
+// RSASSA-PSS Signature Example 9.1
+// Message to be signed:
+static const char message_9_1[] =
+  "a8 8e 26 58 55 e9 d7 ca 36 c6 87 95 f0 b3 1b 59 "
+  "1c d6 58 7c 71 d0 60 a0 b3 f7 f3 ea ef 43 79 59 "
+  "22 02 8b c2 b6 ad 46 7c fc 2d 7f 65 9c 53 85 aa "
+  "70 ba 36 72 cd de 4c fe 49 70 cc 79 04 60 1b 27 "
+  "88 72 bf 51 32 1c 4a 97 2f 3c 95 57 0f 34 45 d4 "
+  "f5 79 80 e0 f2 0d f5 48 46 e6 a5 2c 66 8f 12 88 "
+  "c0 3f 95 00 6e a3 2f 56 2d 40 d5 2a f9 fe b3 2f "
+  "0f a0 6d b6 5b 58 8a 23 7b 34 e5 92 d5 5c f9 79 "
+  "f9 03 a6 42 ef 64 d2 ed 54 2a a8 c7 7d c1 dd 76 "
+  "2f 45 a5 93 03 ed 75 e5 41 ca 27 1e 2b 60 ca 70 "
+  "9e 44 fa 06 61 13 1e 8d 5d 41 63 fd 8d 39 85 66 "
+  "ce 26 de 87 30 e7 2f 9c ca 73 76 41 c2 44 15 94 "
+  "20 63 70 28 df 0a 18 07 9d 62 08 ea 8b 47 11 a2 "
+  "c7 50 f5 ";
+// Salt:
+static const char salt_9_1[] =
+  "c0 a4 25 31 3d f8 d7 56 4b d2 43 4d 31 15 23 d5 "
+  "25 7e ed 80 ";
+// Signature:
+static const char signature_9_1[] =
+  "58 61 07 22 6c 3c e0 13 a7 c8 f0 4d 1a 6a 29 59 "
+  "bb 4b 8e 20 5b a4 3a 27 b5 0f 12 41 11 bc 35 ef "
+  "58 9b 03 9f 59 32 18 7c b6 96 d7 d9 a3 2c 0c 38 "
+  "30 0a 5c dd a4 83 4b 62 d2 eb 24 0a f3 3f 79 d1 "
+  "3d fb f0 95 bf 59 9e 0d 96 86 94 8c 19 64 74 7b "
+  "67 e8 9c 9a ba 5c d8 50 16 23 6f 56 6c c5 80 2c "
+  "b1 3e ad 51 bc 7c a6 be f3 b9 4d cb db b1 d5 70 "
+  "46 97 71 df 0e 00 b1 a8 a0 67 77 47 2d 23 16 27 "
+  "9e da e8 64 74 66 8d 4e 1e ff f9 5f 1d e6 1c 60 "
+  "20 da 32 ae 92 bb f1 65 20 fe f3 cf 4d 88 f6 11 "
+  "21 f2 4b bd 9f e9 1b 59 ca f1 23 5b 2a 93 ff 81 "
+  "fc 40 3a dd f4 eb de a8 49 34 a9 cd af 8e 1a 9e ";
+
+// RSASSA-PSS Signature Example 9.2
+// Message to be signed:
+static const char message_9_2[] =
+  "c8 c9 c6 af 04 ac da 41 4d 22 7e f2 3e 08 20 c3 "
+  "73 2c 50 0d c8 72 75 e9 5b 0d 09 54 13 99 3c 26 "
+  "58 bc 1d 98 85 81 ba 87 9c 2d 20 1f 14 cb 88 ce "
+  "d1 53 a0 19 69 a7 bf 0a 7b e7 9c 84 c1 48 6b c1 "
+  "2b 3f a6 c5 98 71 b6 82 7c 8c e2 53 ca 5f ef a8 "
+  "a8 c6 90 bf 32 6e 8e 37 cd b9 6d 90 a8 2e ba b6 "
+  "9f 86 35 0e 18 22 e8 bd 53 6a 2e ";
+// Salt:
+static const char salt_9_2[] =
+  "b3 07 c4 3b 48 50 a8 da c2 f1 5f 32 e3 78 39 ef "
+  "8c 5c 0e 91 ";
+// Signature:
+static const char signature_9_2[] =
+  "80 b6 d6 43 25 52 09 f0 a4 56 76 38 97 ac 9e d2 "
+  "59 d4 59 b4 9c 28 87 e5 88 2e cb 44 34 cf d6 6d "
+  "d7 e1 69 93 75 38 1e 51 cd 7f 55 4f 2c 27 17 04 "
+  "b3 99 d4 2b 4b e2 54 0a 0e ca 61 95 1f 55 26 7f "
+  "7c 28 78 c1 22 84 2d ad b2 8b 01 bd 5f 8c 02 5f "
+  "7e 22 84 18 a6 73 c0 3d 6b c0 c7 36 d0 a2 95 46 "
+  "bd 67 f7 86 d9 d6 92 cc ea 77 8d 71 d9 8c 20 63 "
+  "b7 a7 10 92 18 7a 4d 35 af 10 81 11 d8 3e 83 ea "
+  "e4 6c 46 aa 34 27 7e 06 04 45 89 90 37 88 f1 d5 "
+  "e7 ce e2 5f b4 85 e9 29 49 11 88 14 d6 f2 c3 ee "
+  "36 14 89 01 6f 32 7f b5 bc 51 7e b5 04 70 bf fa "
+  "1a fa 5f 4c e9 aa 0c e5 b8 ee 19 bf 55 01 b9 58 ";
+
+// RSASSA-PSS Signature Example 9.3
+// Message to be signed:
+static const char message_9_3[] =
+  "0a fa d4 2c cd 4f c6 06 54 a5 50 02 d2 28 f5 2a "
+  "4a 5f e0 3b 8b bb 08 ca 82 da ca 55 8b 44 db e1 "
+  "26 6e 50 c0 e7 45 a3 6d 9d 29 04 e3 40 8a bc d1 "
+  "fd 56 99 94 06 3f 4a 75 cc 72 f2 fe e2 a0 cd 89 "
+  "3a 43 af 1c 5b 8b 48 7d f0 a7 16 10 02 4e 4f 6d "
+  "df 9f 28 ad 08 13 c1 aa b9 1b cb 3c 90 64 d5 ff "
+  "74 2d ef fe a6 57 09 41 39 36 9e 5e a6 f4 a9 63 "
+  "19 a5 cc 82 24 14 5b 54 50 62 75 8f ef d1 fe 34 "
+  "09 ae 16 92 59 c6 cd fd 6b 5f 29 58 e3 14 fa ec "
+  "be 69 d2 ca ce 58 ee 55 17 9a b9 b3 e6 d1 ec c1 "
+  "4a 55 7c 5f eb e9 88 59 52 64 fc 5d a1 c5 71 46 "
+  "2e ca 79 8a 18 a1 a4 94 0c da b4 a3 e9 20 09 cc "
+  "d4 2e 1e 94 7b 13 14 e3 22 38 a2 de ce 7d 23 a8 "
+  "9b 5b 30 c7 51 fd 0a 4a 43 0d 2c 54 85 94 ";
+// Salt:
+static const char salt_9_3[] =
+  "9a 2b 00 7e 80 97 8b bb 19 2c 35 4e b7 da 9a ed "
+  "fc 74 db f5 ";
+// Signature:
+static const char signature_9_3[] =
+  "48 44 08 f3 89 8c d5 f5 34 83 f8 08 19 ef bf 27 "
+  "08 c3 4d 27 a8 b2 a6 fa e8 b3 22 f9 24 02 37 f9 "
+  "81 81 7a ca 18 46 f1 08 4d aa 6d 7c 07 95 f6 e5 "
+  "bf 1a f5 9c 38 e1 85 84 37 ce 1f 7e c4 19 b9 8c "
+  "87 36 ad f6 dd 9a 00 b1 80 6d 2b d3 ad 0a 73 77 "
+  "5e 05 f5 2d fe f3 a5 9a b4 b0 81 43 f0 df 05 cd "
+  "1a d9 d0 4b ec ec a6 da a4 a2 12 98 03 e2 00 cb "
+  "c7 77 87 ca f4 c1 d0 66 3a 6c 59 87 b6 05 95 20 "
+  "19 78 2c af 2e c1 42 6d 68 fb 94 ed 1d 4b e8 16 "
+  "a7 ed 08 1b 77 e6 ab 33 0b 3f fc 07 38 20 fe cd "
+  "e3 72 7f cb e2 95 ee 61 a0 50 a3 43 65 86 37 c3 "
+  "fd 65 9c fb 63 73 6d e3 2d 9f 90 d3 c2 f6 3e ca ";
+
+// RSASSA-PSS Signature Example 9.4
+// Message to be signed:
+static const char message_9_4[] =
+  "1d fd 43 b4 6c 93 db 82 62 9b da e2 bd 0a 12 b8 "
+  "82 ea 04 c3 b4 65 f5 cf 93 02 3f 01 05 96 26 db "
+  "be 99 f2 6b b1 be 94 9d dd d1 6d c7 f3 de bb 19 "
+  "a1 94 62 7f 0b 22 44 34 df 7d 87 00 e9 e9 8b 06 "
+  "e3 60 c1 2f db e3 d1 9f 51 c9 68 4e b9 08 9e cb "
+  "b0 a2 f0 45 03 99 d3 f5 9e ac 72 94 08 5d 04 4f "
+  "53 93 c6 ce 73 74 23 d8 b8 6c 41 53 70 d3 89 e3 "
+  "0b 9f 0a 3c 02 d2 5d 00 82 e8 ad 6f 3f 1e f2 4a "
+  "45 c3 cf 82 b3 83 36 70 63 a4 d4 61 3e 42 64 f0 "
+  "1b 2d ac 2e 5a a4 20 43 f8 fb 5f 69 fa 87 1d 14 "
+  "fb 27 3e 76 7a 53 1c 40 f0 2f 34 3b c2 fb 45 a0 "
+  "c7 e0 f6 be 25 61 92 3a 77 21 1d 66 a6 e2 db b4 "
+  "3c 36 63 50 be ae 22 da 3a c2 c1 f5 07 70 96 fc "
+  "b5 c4 bf 25 5f 75 74 35 1a e0 b1 e1 f0 36 32 81 "
+  "7c 08 56 d4 a8 ba 97 af bd c8 b8 58 55 40 2b c5 "
+  "69 26 fc ec 20 9f 9e a8 ";
+// Salt:
+static const char salt_9_4[] =
+  "70 f3 82 bd df 4d 5d 2d d8 8b 3b c7 b7 30 8b e6 "
+  "32 b8 40 45 ";
+// Signature:
+static const char signature_9_4[] =
+  "84 eb eb 48 1b e5 98 45 b4 64 68 ba fb 47 1c 01 "
+  "12 e0 2b 23 5d 84 b5 d9 11 cb d1 92 6e e5 07 4a "
+  "e0 42 44 95 cb 20 e8 23 08 b8 eb b6 5f 41 9a 03 "
+  "fb 40 e7 2b 78 98 1d 88 aa d1 43 05 36 85 17 2c "
+  "97 b2 9c 8b 7b f0 ae 73 b5 b2 26 3c 40 3d a0 ed "
+  "2f 80 ff 74 50 af 78 28 eb 8b 86 f0 02 8b d2 a8 "
+  "b1 76 a4 d2 28 cc ce a1 83 94 f2 38 b0 9f f7 58 "
+  "cc 00 bc 04 30 11 52 35 57 42 f2 82 b5 4e 66 3a "
+  "91 9e 70 9d 8d a2 4a de 55 00 a7 b9 aa 50 22 6e "
+  "0c a5 29 23 e6 c2 d8 60 ec 50 ff 48 0f a5 74 77 "
+  "e8 2b 05 65 f4 37 9f 79 c7 72 d5 c2 da 80 af 9f "
+  "bf 32 5e ce 6f c2 0b 00 96 16 14 be e8 9a 18 3e ";
+
+// RSASSA-PSS Signature Example 9.5
+// Message to be signed:
+static const char message_9_5[] =
+  "1b dc 6e 7c 98 fb 8c f5 4e 9b 09 7b 66 a8 31 e9 "
+  "cf e5 2d 9d 48 88 44 8e e4 b0 97 80 93 ba 1d 7d "
+  "73 ae 78 b3 a6 2b a4 ad 95 cd 28 9c cb 9e 00 52 "
+  "26 bb 3d 17 8b cc aa 82 1f b0 44 a4 e2 1e e9 76 "
+  "96 c1 4d 06 78 c9 4c 2d ae 93 b0 ad 73 92 22 18 "
+  "55 3d aa 7e 44 eb e5 77 25 a7 a4 5c c7 2b 9b 21 "
+  "38 a6 b1 7c 8d b4 11 ce 82 79 ee 12 41 af f0 a8 "
+  "be c6 f7 7f 87 ed b0 c6 9c b2 72 36 e3 43 5a 80 "
+  "0b 19 2e 4f 11 e5 19 e3 fe 30 fc 30 ea cc ca 4f "
+  "bb 41 76 90 29 bf 70 8e 81 7a 9e 68 38 05 be 67 "
+  "fa 10 09 84 68 3b 74 83 8e 3b cf fa 79 36 6e ed "
+  "1d 48 1c 76 72 91 18 83 8f 31 ba 8a 04 8a 93 c1 "
+  "be 44 24 59 8e 8d f6 32 8b 7a 77 88 0a 3f 9c 7e "
+  "2e 8d fc a8 eb 5a 26 fb 86 bd c5 56 d4 2b be 01 "
+  "d9 fa 6e d8 06 46 49 1c 93 41 ";
+// Salt:
+static const char salt_9_5[] =
+  "d6 89 25 7a 86 ef fa 68 21 2c 5e 0c 61 9e ca 29 "
+  "5f b9 1b 67 ";
+// Signature:
+static const char signature_9_5[] =
+  "82 10 2d f8 cb 91 e7 17 99 19 a0 4d 26 d3 35 d6 "
+  "4f bc 2f 87 2c 44 83 39 43 24 1d e8 45 48 10 27 "
+  "4c df 3d b5 f4 2d 42 3d b1 52 af 71 35 f7 01 42 "
+  "0e 39 b4 94 a6 7c bf d1 9f 91 19 da 23 3a 23 da "
+  "5c 64 39 b5 ba 0d 2b c3 73 ee e3 50 70 01 37 8d "
+  "4a 40 73 85 6b 7f e2 ab a0 b5 ee 93 b2 7f 4a fe "
+  "c7 d4 d1 20 92 1c 83 f6 06 76 5b 02 c1 9e 4d 6a "
+  "1a 3b 95 fa 4c 42 29 51 be 4f 52 13 10 77 ef 17 "
+  "17 97 29 cd df bd b5 69 50 db ac ee fe 78 cb 16 "
+  "64 0a 09 9e a5 6d 24 38 9e ef 10 f8 fe cb 31 ba "
+  "3e a3 b2 27 c0 a8 66 98 bb 89 e3 e9 36 39 05 bf "
+  "22 77 7b 2a 3a a5 21 b6 5b 4c ef 76 d8 3b de 4c ";
+
+// RSASSA-PSS Signature Example 9.6
+// Message to be signed:
+static const char message_9_6[] =
+  "88 c7 a9 f1 36 04 01 d9 0e 53 b1 01 b6 1c 53 25 "
+  "c3 c7 5d b1 b4 11 fb eb 8e 83 0b 75 e9 6b 56 67 "
+  "0a d2 45 40 4e 16 79 35 44 ee 35 4b c6 13 a9 0c "
+  "c9 84 87 15 a7 3d b5 89 3e 7f 6d 27 98 15 c0 c1 "
+  "de 83 ef 8e 29 56 e3 a5 6e d2 6a 88 8d 7a 9c dc "
+  "d0 42 f4 b1 6b 7f a5 1e f1 a0 57 36 62 d1 6a 30 "
+  "2d 0e c5 b2 85 d2 e0 3a d9 65 29 c8 7b 3d 37 4d "
+  "b3 72 d9 5b 24 43 d0 61 b6 b1 a3 50 ba 87 80 7e "
+  "d0 83 af d1 eb 05 c3 f5 2f 4e ba 5e d2 22 77 14 "
+  "fd b5 0b 9d 9d 9d d6 81 4f 62 f6 27 2f cd 5c db "
+  "ce 7a 9e f7 97 ";
+// Salt:
+static const char salt_9_6[] =
+  "c2 5f 13 bf 67 d0 81 67 1a 04 81 a1 f1 82 0d 61 "
+  "3b ba 22 76 ";
+// Signature:
+static const char signature_9_6[] =
+  "a7 fd b0 d2 59 16 5c a2 c8 8d 00 bb f1 02 8a 86 "
+  "7d 33 76 99 d0 61 19 3b 17 a9 64 8e 14 cc bb aa "
+  "de ac aa cd ec 81 5e 75 71 29 4e bb 8a 11 7a f2 "
+  "05 fa 07 8b 47 b0 71 2c 19 9e 3a d0 51 35 c5 04 "
+  "c2 4b 81 70 51 15 74 08 02 48 79 92 ff d5 11 d4 "
+  "af c6 b8 54 49 1e b3 f0 dd 52 31 39 54 2f f1 5c "
+  "31 01 ee 85 54 35 17 c6 a3 c7 94 17 c6 7e 2d d9 "
+  "aa 74 1e 9a 29 b0 6d cb 59 3c 23 36 b3 67 0a e3 "
+  "af ba c7 c3 e7 6e 21 54 73 e8 66 e3 38 ca 24 4d "
+  "e0 0b 62 62 4d 6b 94 26 82 2c ea e9 f8 cc 46 08 "
+  "95 f4 12 50 07 3f d4 5c 5a 1e 7b 42 5c 20 4a 42 "
+  "3a 69 91 59 f6 90 3e 71 0b 37 a7 bb 2b c8 04 9f ";
+
+// Example 10: A 2048-bit RSA Key Pair
+
+// RSA modulus n:
+static const char rsa_modulus_n_10[] =
+  "a5 dd 86 7a c4 cb 02 f9 0b 94 57 d4 8c 14 a7 70 "
+  "ef 99 1c 56 c3 9c 0e c6 5f d1 1a fa 89 37 ce a5 "
+  "7b 9b e7 ac 73 b4 5c 00 17 61 5b 82 d6 22 e3 18 "
+  "75 3b 60 27 c0 fd 15 7b e1 2f 80 90 fe e2 a7 ad "
+  "cd 0e ef 75 9f 88 ba 49 97 c7 a4 2d 58 c9 aa 12 "
+  "cb 99 ae 00 1f e5 21 c1 3b b5 43 14 45 a8 d5 ae "
+  "4f 5e 4c 7e 94 8a c2 27 d3 60 40 71 f2 0e 57 7e "
+  "90 5f be b1 5d fa f0 6d 1d e5 ae 62 53 d6 3a 6a "
+  "21 20 b3 1a 5d a5 da bc 95 50 60 0e 20 f2 7d 37 "
+  "39 e2 62 79 25 fe a3 cc 50 9f 21 df f0 4e 6e ea "
+  "45 49 c5 40 d6 80 9f f9 30 7e ed e9 1f ff 58 73 "
+  "3d 83 85 a2 37 d6 d3 70 5a 33 e3 91 90 09 92 07 "
+  "0d f7 ad f1 35 7c f7 e3 70 0c e3 66 7d e8 3f 17 "
+  "b8 df 17 78 db 38 1d ce 09 cb 4a d0 58 a5 11 00 "
+  "1a 73 81 98 ee 27 cf 55 a1 3b 75 45 39 90 65 82 "
+  "ec 8b 17 4b d5 8d 5d 1f 3d 76 7c 61 37 21 ae 05 ";
+// RSA public exponent e:
+static const char rsa_public_exponent_e_10[] =
+  "01 00 01 ";
+
+// RSASSA-PSS Signature Example 10.1
+// Message to be signed:
+static const char message_10_1[] =
+  "88 31 77 e5 12 6b 9b e2 d9 a9 68 03 27 d5 37 0c "
+  "6f 26 86 1f 58 20 c4 3d a6 7a 3a d6 09 ";
+// Salt:
+static const char salt_10_1[] =
+  "04 e2 15 ee 6f f9 34 b9 da 70 d7 73 0c 87 34 ab "
+  "fc ec de 89 ";
+// Signature:
+static const char signature_10_1[] =
+  "82 c2 b1 60 09 3b 8a a3 c0 f7 52 2b 19 f8 73 54 "
+  "06 6c 77 84 7a bf 2a 9f ce 54 2d 0e 84 e9 20 c5 "
+  "af b4 9f fd fd ac e1 65 60 ee 94 a1 36 96 01 14 "
+  "8e ba d7 a0 e1 51 cf 16 33 17 91 a5 72 7d 05 f2 "
+  "1e 74 e7 eb 81 14 40 20 69 35 d7 44 76 5a 15 e7 "
+  "9f 01 5c b6 6c 53 2c 87 a6 a0 59 61 c8 bf ad 74 "
+  "1a 9a 66 57 02 28 94 39 3e 72 23 73 97 96 c0 2a "
+  "77 45 5d 0f 55 5b 0e c0 1d df 25 9b 62 07 fd 0f "
+  "d5 76 14 ce f1 a5 57 3b aa ff 4e c0 00 69 95 16 "
+  "59 b8 5f 24 30 0a 25 16 0c a8 52 2d c6 e6 72 7e "
+  "57 d0 19 d7 e6 36 29 b8 fe 5e 89 e2 5c c1 5b eb "
+  "3a 64 75 77 55 92 99 28 0b 9b 28 f7 9b 04 09 00 "
+  "0b e2 5b bd 96 40 8b a3 b4 3c c4 86 18 4d d1 c8 "
+  "e6 25 53 fa 1a f4 04 0f 60 66 3d e7 f5 e4 9c 04 "
+  "38 8e 25 7f 1c e8 9c 95 da b4 8a 31 5d 9b 66 b1 "
+  "b7 62 82 33 87 6f f2 38 52 30 d0 70 d0 7e 16 66 ";
+
+// RSASSA-PSS Signature Example 10.2
+// Message to be signed:
+static const char message_10_2[] =
+  "dd 67 0a 01 46 58 68 ad c9 3f 26 13 19 57 a5 0c "
+  "52 fb 77 7c db aa 30 89 2c 9e 12 36 11 64 ec 13 "
+  "97 9d 43 04 81 18 e4 44 5d b8 7b ee 58 dd 98 7b "
+  "34 25 d0 20 71 d8 db ae 80 70 8b 03 9d bb 64 db "
+  "d1 de 56 57 d9 fe d0 c1 18 a5 41 43 74 2e 0f f3 "
+  "c8 7f 74 e4 58 57 64 7a f3 f7 9e b0 a1 4c 9d 75 "
+  "ea 9a 1a 04 b7 cf 47 8a 89 7a 70 8f d9 88 f4 8e "
+  "80 1e db 0b 70 39 df 8c 23 bb 3c 56 f4 e8 21 ac ";
+// Salt:
+static const char salt_10_2[] =
+  "8b 2b dd 4b 40 fa f5 45 c7 78 dd f9 bc 1a 49 cb "
+  "57 f9 b7 1b ";
+// Signature:
+static const char signature_10_2[] =
+  "14 ae 35 d9 dd 06 ba 92 f7 f3 b8 97 97 8a ed 7c "
+  "d4 bf 5f f0 b5 85 a4 0b d4 6c e1 b4 2c d2 70 30 "
+  "53 bb 90 44 d6 4e 81 3d 8f 96 db 2d d7 00 7d 10 "
+  "11 8f 6f 8f 84 96 09 7a d7 5e 1f f6 92 34 1b 28 "
+  "92 ad 55 a6 33 a1 c5 5e 7f 0a 0a d5 9a 0e 20 3a "
+  "5b 82 78 ae c5 4d d8 62 2e 28 31 d8 71 74 f8 ca "
+  "ff 43 ee 6c 46 44 53 45 d8 4a 59 65 9b fb 92 ec "
+  "d4 c8 18 66 86 95 f3 47 06 f6 68 28 a8 99 59 63 "
+  "7f 2b f3 e3 25 1c 24 bd ba 4d 4b 76 49 da 00 22 "
+  "21 8b 11 9c 84 e7 9a 65 27 ec 5b 8a 5f 86 1c 15 "
+  "99 52 e2 3e c0 5e 1e 71 73 46 fa ef e8 b1 68 68 "
+  "25 bd 2b 26 2f b2 53 10 66 c0 de 09 ac de 2e 42 "
+  "31 69 07 28 b5 d8 5e 11 5a 2f 6b 92 b7 9c 25 ab "
+  "c9 bd 93 99 ff 8b cf 82 5a 52 ea 1f 56 ea 76 dd "
+  "26 f4 3b aa fa 18 bf a9 2a 50 4c bd 35 69 9e 26 "
+  "d1 dc c5 a2 88 73 85 f3 c6 32 32 f0 6f 32 44 c3 ";
+
+// RSASSA-PSS Signature Example 10.3
+// Message to be signed:
+static const char message_10_3[] =
+  "48 b2 b6 a5 7a 63 c8 4c ea 85 9d 65 c6 68 28 4b "
+  "08 d9 6b dc aa be 25 2d b0 e4 a9 6c b1 ba c6 01 "
+  "93 41 db 6f be fb 8d 10 6b 0e 90 ed a6 bc c6 c6 "
+  "26 2f 37 e7 ea 9c 7e 5d 22 6b d7 df 85 ec 5e 71 "
+  "ef ff 2f 54 c5 db 57 7f f7 29 ff 91 b8 42 49 1d "
+  "e2 74 1d 0c 63 16 07 df 58 6b 90 5b 23 b9 1a f1 "
+  "3d a1 23 04 bf 83 ec a8 a7 3e 87 1f f9 db ";
+// Salt:
+static const char salt_10_3[] =
+  "4e 96 fc 1b 39 8f 92 b4 46 71 01 0c 0d c3 ef d6 "
+  "e2 0c 2d 73 ";
+// Signature:
+static const char signature_10_3[] =
+  "6e 3e 4d 7b 6b 15 d2 fb 46 01 3b 89 00 aa 5b bb "
+  "39 39 cf 2c 09 57 17 98 70 42 02 6e e6 2c 74 c5 "
+  "4c ff d5 d7 d5 7e fb bf 95 0a 0f 5c 57 4f a0 9d "
+  "3f c1 c9 f5 13 b0 5b 4f f5 0d d8 df 7e df a2 01 "
+  "02 85 4c 35 e5 92 18 01 19 a7 0c e5 b0 85 18 2a "
+  "a0 2d 9e a2 aa 90 d1 df 03 f2 da ae 88 5b a2 f5 "
+  "d0 5a fd ac 97 47 6f 06 b9 3b 5b c9 4a 1a 80 aa "
+  "91 16 c4 d6 15 f3 33 b0 98 89 2b 25 ff ac e2 66 "
+  "f5 db 5a 5a 3b cc 10 a8 24 ed 55 aa d3 5b 72 78 "
+  "34 fb 8c 07 da 28 fc f4 16 a5 d9 b2 22 4f 1f 8b "
+  "44 2b 36 f9 1e 45 6f de a2 d7 cf e3 36 72 68 de "
+  "03 07 a4 c7 4e 92 41 59 ed 33 39 3d 5e 06 55 53 "
+  "1c 77 32 7b 89 82 1b de df 88 01 61 c7 8c d4 19 "
+  "6b 54 19 f7 ac c3 f1 3e 5e bf 16 1b 6e 7c 67 24 "
+  "71 6c a3 3b 85 c2 e2 56 40 19 2a c2 85 96 51 d5 "
+  "0b de 7e b9 76 e5 1c ec 82 8b 98 b6 56 3b 86 bb ";
+
+// RSASSA-PSS Signature Example 10.4
+// Message to be signed:
+static const char message_10_4[] =
+  "0b 87 77 c7 f8 39 ba f0 a6 4b bb db c5 ce 79 75 "
+  "5c 57 a2 05 b8 45 c1 74 e2 d2 e9 05 46 a0 89 c4 "
+  "e6 ec 8a df fa 23 a7 ea 97 ba e6 b6 5d 78 2b 82 "
+  "db 5d 2b 5a 56 d2 2a 29 a0 5e 7c 44 33 e2 b8 2a "
+  "62 1a bb a9 0a dd 05 ce 39 3f c4 8a 84 05 42 45 "
+  "1a ";
+// Salt:
+static const char salt_10_4[] =
+  "c7 cd 69 8d 84 b6 51 28 d8 83 5e 3a 8b 1e b0 e0 "
+  "1c b5 41 ec ";
+// Signature:
+static const char signature_10_4[] =
+  "34 04 7f f9 6c 4d c0 dc 90 b2 d4 ff 59 a1 a3 61 "
+  "a4 75 4b 25 5d 2e e0 af 7d 8b f8 7c 9b c9 e7 dd "
+  "ee de 33 93 4c 63 ca 1c 0e 3d 26 2c b1 45 ef 93 "
+  "2a 1f 2c 0a 99 7a a6 a3 4f 8e ae e7 47 7d 82 cc "
+  "f0 90 95 a6 b8 ac ad 38 d4 ee c9 fb 7e ab 7a d0 "
+  "2d a1 d1 1d 8e 54 c1 82 5e 55 bf 58 c2 a2 32 34 "
+  "b9 02 be 12 4f 9e 90 38 a8 f6 8f a4 5d ab 72 f6 "
+  "6e 09 45 bf 1d 8b ac c9 04 4c 6f 07 09 8c 9f ce "
+  "c5 8a 3a ab 10 0c 80 51 78 15 5f 03 0a 12 4c 45 "
+  "0e 5a cb da 47 d0 e4 f1 0b 80 a2 3f 80 3e 77 4d "
+  "02 3b 00 15 c2 0b 9f 9b be 7c 91 29 63 38 d5 ec "
+  "b4 71 ca fb 03 20 07 b6 7a 60 be 5f 69 50 4a 9f "
+  "01 ab b3 cb 46 7b 26 0e 2b ce 86 0b e8 d9 5b f9 "
+  "2c 0c 8e 14 96 ed 1e 52 85 93 a4 ab b6 df 46 2d "
+  "de 8a 09 68 df fe 46 83 11 68 57 a2 32 f5 eb f6 "
+  "c8 5b e2 38 74 5a d0 f3 8f 76 7a 5f db f4 86 fb ";
+
+// RSASSA-PSS Signature Example 10.5
+// Message to be signed:
+static const char message_10_5[] =
+  "f1 03 6e 00 8e 71 e9 64 da dc 92 19 ed 30 e1 7f "
+  "06 b4 b6 8a 95 5c 16 b3 12 b1 ed df 02 8b 74 97 "
+  "6b ed 6b 3f 6a 63 d4 e7 78 59 24 3c 9c cc dc 98 "
+  "01 65 23 ab b0 24 83 b3 55 91 c3 3a ad 81 21 3b "
+  "b7 c7 bb 1a 47 0a ab c1 0d 44 25 6c 4d 45 59 d9 "
+  "16 ";
+// Salt:
+static const char salt_10_5[] =
+  "ef a8 bf f9 62 12 b2 f4 a3 f3 71 a1 0d 57 41 52 "
+  "65 5f 5d fb ";
+// Signature:
+static const char signature_10_5[] =
+  "7e 09 35 ea 18 f4 d6 c1 d1 7c e8 2e b2 b3 83 6c "
+  "55 b3 84 58 9c e1 9d fe 74 33 63 ac 99 48 d1 f3 "
+  "46 b7 bf dd fe 92 ef d7 8a db 21 fa ef c8 9a de "
+  "42 b1 0f 37 40 03 fe 12 2e 67 42 9a 1c b8 cb d1 "
+  "f8 d9 01 45 64 c4 4d 12 01 16 f4 99 0f 1a 6e 38 "
+  "77 4c 19 4b d1 b8 21 32 86 b0 77 b0 49 9d 2e 7b "
+  "3f 43 4a b1 22 89 c5 56 68 4d ee d7 81 31 93 4b "
+  "b3 dd 65 37 23 6f 7c 6f 3d cb 09 d4 76 be 07 72 "
+  "1e 37 e1 ce ed 9b 2f 7b 40 68 87 bd 53 15 73 05 "
+  "e1 c8 b4 f8 4d 73 3b c1 e1 86 fe 06 cc 59 b6 ed "
+  "b8 f4 bd 7f fe fd f4 f7 ba 9c fb 9d 57 06 89 b5 "
+  "a1 a4 10 9a 74 6a 69 08 93 db 37 99 25 5a 0c b9 "
+  "21 5d 2d 1c d4 90 59 0e 95 2e 8c 87 86 aa 00 11 "
+  "26 52 52 47 0c 04 1d fb c3 ee c7 c3 cb f7 1c 24 "
+  "86 9d 11 5c 0c b4 a9 56 f5 6d 53 0b 80 ab 58 9a "
+  "cf ef c6 90 75 1d df 36 e8 d3 83 f8 3c ed d2 cc ";
+
+// RSASSA-PSS Signature Example 10.6
+// Message to be signed:
+static const char message_10_6[] =
+  "25 f1 08 95 a8 77 16 c1 37 45 0b b9 51 9d fa a1 "
+  "f2 07 fa a9 42 ea 88 ab f7 1e 9c 17 98 00 85 b5 "
+  "55 ae ba b7 62 64 ae 2a 3a b9 3c 2d 12 98 11 91 "
+  "dd ac 6f b5 94 9e b3 6a ee 3c 5d a9 40 f0 07 52 "
+  "c9 16 d9 46 08 fa 7d 97 ba 6a 29 15 b6 88 f2 03 "
+  "23 d4 e9 d9 68 01 d8 9a 72 ab 58 92 dc 21 17 c0 "
+  "74 34 fc f9 72 e0 58 cf 8c 41 ca 4b 4f f5 54 f7 "
+  "d5 06 8a d3 15 5f ce d0 f3 12 5b c0 4f 91 93 37 "
+  "8a 8f 5c 4c 3b 8c b4 dd 6d 1c c6 9d 30 ec ca 6e "
+  "aa 51 e3 6a 05 73 0e 9e 34 2e 85 5b af 09 9d ef "
+  "b8 af d7 ";
+// Salt:
+static const char salt_10_6[] =
+  "ad 8b 15 23 70 36 46 22 4b 66 0b 55 08 85 91 7c "
+  "a2 d1 df 28 ";
+// Signature:
+static const char signature_10_6[] =
+  "6d 3b 5b 87 f6 7e a6 57 af 21 f7 54 41 97 7d 21 "
+  "80 f9 1b 2c 5f 69 2d e8 29 55 69 6a 68 67 30 d9 "
+  "b9 77 8d 97 07 58 cc b2 60 71 c2 20 9f fb d6 12 "
+  "5b e2 e9 6e a8 1b 67 cb 9b 93 08 23 9f da 17 f7 "
+  "b2 b6 4e cd a0 96 b6 b9 35 64 0a 5a 1c b4 2a 91 "
+  "55 b1 c9 ef 7a 63 3a 02 c5 9f 0d 6e e5 9b 85 2c "
+  "43 b3 50 29 e7 3c 94 0f f0 41 0e 8f 11 4e ed 46 "
+  "bb d0 fa e1 65 e4 2b e2 52 8a 40 1c 3b 28 fd 81 "
+  "8e f3 23 2d ca 9f 4d 2a 0f 51 66 ec 59 c4 23 96 "
+  "d6 c1 1d bc 12 15 a5 6f a1 71 69 db 95 75 34 3e "
+  "f3 4f 9d e3 2a 49 cd c3 17 49 22 f2 29 c2 3e 18 "
+  "e4 5d f9 35 31 19 ec 43 19 ce dc e7 a1 7c 64 08 "
+  "8c 1f 6f 52 be 29 63 41 00 b3 91 9d 38 f3 d1 ed "
+  "94 e6 89 1e 66 a7 3b 8f b8 49 f5 87 4d f5 94 59 "
+  "e2 98 c7 bb ce 2e ee 78 2a 19 5a a6 6f e2 d0 73 "
+  "2b 25 e5 95 f5 7d 3e 06 1b 1f c3 e4 06 3b f9 8f ";
+
+struct SignatureExample {
+  const char* message;
+  const char* salt;
+  const char* signature;
+};
+
+struct PSSTestVector {
+  const char* modulus_n;
+  const char* public_exponent_e;
+  SignatureExample example[6];
+};
+
+static const PSSTestVector pss_test[] = {
+  {
+    rsa_modulus_n_1,
+    rsa_public_exponent_e_1,
+    {
+      { message_1_1, salt_1_1, signature_1_1 },
+      { message_1_2, salt_1_2, signature_1_2 },
+      { message_1_3, salt_1_3, signature_1_3 },
+      { message_1_4, salt_1_4, signature_1_4 },
+      { message_1_5, salt_1_5, signature_1_5 },
+      { message_1_6, salt_1_6, signature_1_6 },
+    }
+  },
+  {
+    rsa_modulus_n_9,
+    rsa_public_exponent_e_9,
+    {
+      { message_9_1, salt_9_1, signature_9_1 },
+      { message_9_2, salt_9_2, signature_9_2 },
+      { message_9_3, salt_9_3, signature_9_3 },
+      { message_9_4, salt_9_4, signature_9_4 },
+      { message_9_5, salt_9_5, signature_9_5 },
+      { message_9_6, salt_9_6, signature_9_6 },
+    }
+  },
+  {
+    rsa_modulus_n_10,
+    rsa_public_exponent_e_10,
+    {
+      { message_10_1, salt_10_1, signature_10_1 },
+      { message_10_2, salt_10_2, signature_10_2 },
+      { message_10_3, salt_10_3, signature_10_3 },
+      { message_10_4, salt_10_4, signature_10_4 },
+      { message_10_5, salt_10_5, signature_10_5 },
+      { message_10_6, salt_10_6, signature_10_6 },
+    }
+  },
+};
+
+static uint8 HexDigitValue(char digit) {
+  if ('0' <= digit && digit <= '9')
+    return digit - '0';
+  if ('a' <= digit && digit <= 'f')
+    return digit - 'a' + 10;
+  return digit - 'A' + 10;
+}
+
+static bool DecodeTestInput(const char* in, std::vector<uint8>* out) {
+  out->clear();
+  while (in[0] != '\0') {
+    if (!isxdigit(in[0]) || !isxdigit(in[1]) || in[2] != ' ')
+      return false;
+    uint8 octet = HexDigitValue(in[0]) * 16 + HexDigitValue(in[1]);
+    out->push_back(octet);
+    in += 3;
+  }
+  return true;
+}
+
+static bool EncodeRSAPublicKey(const std::vector<uint8>& modulus_n,
+                               const std::vector<uint8>& public_exponent_e,
+                               std::vector<uint8>* public_key_info) {
+  // The public key is specified as the following ASN.1 structure:
+  //   SubjectPublicKeyInfo  ::=  SEQUENCE  {
+  //       algorithm            AlgorithmIdentifier,
+  //       subjectPublicKey     BIT STRING  }
+  //
+  // The signature algorithm is specified as the following ASN.1 structure:
+  //    AlgorithmIdentifier  ::=  SEQUENCE  {
+  //        algorithm               OBJECT IDENTIFIER,
+  //        parameters              ANY DEFINED BY algorithm OPTIONAL  }
+  //
+  // An RSA public key is specified as the following ASN.1 structure:
+  //    RSAPublicKey ::= SEQUENCE {
+  //        modulus           INTEGER,  -- n
+  //        publicExponent    INTEGER   -- e
+  //    }
+  static const uint8 kIntegerTag = 0x02;
+  static const uint8 kBitStringTag = 0x03;
+  static const uint8 kSequenceTag = 0x30;
+  public_key_info->clear();
+
+  // Encode the public exponent e as an INTEGER.
+  public_key_info->insert(public_key_info->begin(),
+                          public_exponent_e.begin(),
+                          public_exponent_e.end());
+  uint8 length = public_exponent_e.size();
+  public_key_info->insert(public_key_info->begin(), length);
+  public_key_info->insert(public_key_info->begin(), kIntegerTag);
+
+  // Encode the modulus n as an INTEGER.
+  public_key_info->insert(public_key_info->begin(),
+                          modulus_n.begin(), modulus_n.end());
+  uint16 length16 = modulus_n.size();
+  if (modulus_n[0] & 0x80) {
+    public_key_info->insert(public_key_info->begin(), 0x00);
+    length16++;
+  }
+  public_key_info->insert(public_key_info->begin(), length16 & 0xff);
+  public_key_info->insert(public_key_info->begin(), (length16 >> 8) & 0xff);
+  public_key_info->insert(public_key_info->begin(), 0x82);
+  public_key_info->insert(public_key_info->begin(), kIntegerTag);
+
+  // Encode the RSAPublicKey SEQUENCE.
+  length16 = public_key_info->size();
+  public_key_info->insert(public_key_info->begin(), length16 & 0xff);
+  public_key_info->insert(public_key_info->begin(), (length16 >> 8) & 0xff);
+  public_key_info->insert(public_key_info->begin(), 0x82);
+  public_key_info->insert(public_key_info->begin(), kSequenceTag);
+
+  // Encode the BIT STRING.
+  // Number of unused bits.
+  public_key_info->insert(public_key_info->begin(), 0x00);
+  length16 = public_key_info->size();
+  public_key_info->insert(public_key_info->begin(), length16 & 0xff);
+  public_key_info->insert(public_key_info->begin(), (length16 >> 8) & 0xff);
+  public_key_info->insert(public_key_info->begin(), 0x82);
+  public_key_info->insert(public_key_info->begin(), kBitStringTag);
+
+  // Encode the AlgorithmIdentifier.
+  static const uint8 algorithm[] = {
+    0x30, 0x0d,  // a SEQUENCE of length 13
+      0x06, 0x09,  // an OBJECT IDENTIFIER of length 9
+        0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
+      0x05, 0x00,
+  };
+  public_key_info->insert(public_key_info->begin(),
+                          algorithm, algorithm + sizeof(algorithm));
+
+  // Encode the outermost SEQUENCE.
+  length16 = public_key_info->size();
+  public_key_info->insert(public_key_info->begin(), length16 & 0xff);
+  public_key_info->insert(public_key_info->begin(), (length16 >> 8) & 0xff);
+  public_key_info->insert(public_key_info->begin(), 0x82);
+  public_key_info->insert(public_key_info->begin(), kSequenceTag);
+
+  return true;
+}
+
+TEST(SignatureVerifierTest, VerifyRSAPSS) {
+  for (unsigned int i = 0; i < arraysize(pss_test); i++) {
+    std::vector<uint8> modulus_n;
+    std::vector<uint8> public_exponent_e;
+    ASSERT_TRUE(DecodeTestInput(pss_test[i].modulus_n, &modulus_n));
+    ASSERT_TRUE(DecodeTestInput(pss_test[i].public_exponent_e,
+                                &public_exponent_e));
+    std::vector<uint8> public_key_info;
+    ASSERT_TRUE(EncodeRSAPublicKey(modulus_n, public_exponent_e,
+                                   &public_key_info));
+
+    for (unsigned int j = 0; j < arraysize(pss_test[i].example); j++) {
+      std::vector<uint8> message;
+      std::vector<uint8> salt;
+      std::vector<uint8> signature;
+      ASSERT_TRUE(DecodeTestInput(pss_test[i].example[j].message, &message));
+      ASSERT_TRUE(DecodeTestInput(pss_test[i].example[j].salt, &salt));
+      ASSERT_TRUE(DecodeTestInput(pss_test[i].example[j].signature,
+                                  &signature));
+
+      crypto::SignatureVerifier verifier;
+      bool ok;
+
+      // Positive test.
+      ok = verifier.VerifyInitRSAPSS(crypto::SignatureVerifier::SHA1,
+                                     crypto::SignatureVerifier::SHA1,
+                                     salt.size(),
+                                     &signature[0], signature.size(),
+                                     &public_key_info[0],
+                                     public_key_info.size());
+      ASSERT_TRUE(ok);
+      verifier.VerifyUpdate(&message[0], message.size());
+      ok = verifier.VerifyFinal();
+      EXPECT_TRUE(ok);
+
+      // Modify the first byte of the message.
+      ok = verifier.VerifyInitRSAPSS(crypto::SignatureVerifier::SHA1,
+                                     crypto::SignatureVerifier::SHA1,
+                                     salt.size(),
+                                     &signature[0], signature.size(),
+                                     &public_key_info[0],
+                                     public_key_info.size());
+      ASSERT_TRUE(ok);
+      message[0] += 1;
+      verifier.VerifyUpdate(&message[0], message.size());
+      message[0] -= 1;
+      ok = verifier.VerifyFinal();
+      EXPECT_FALSE(ok);
+
+      // Truncate the message.
+      ASSERT_FALSE(message.empty());
+      ok = verifier.VerifyInitRSAPSS(crypto::SignatureVerifier::SHA1,
+                                     crypto::SignatureVerifier::SHA1,
+                                     salt.size(),
+                                     &signature[0], signature.size(),
+                                     &public_key_info[0],
+                                     public_key_info.size());
+      ASSERT_TRUE(ok);
+      verifier.VerifyUpdate(&message[0], message.size() - 1);
+      ok = verifier.VerifyFinal();
+      EXPECT_FALSE(ok);
+
+      // Corrupt the signature.
+      signature[0] += 1;
+      ok = verifier.VerifyInitRSAPSS(crypto::SignatureVerifier::SHA1,
+                                     crypto::SignatureVerifier::SHA1,
+                                     salt.size(),
+                                     &signature[0], signature.size(),
+                                     &public_key_info[0],
+                                     public_key_info.size());
+      signature[0] -= 1;
+      ASSERT_TRUE(ok);
+      verifier.VerifyUpdate(&message[0], message.size());
+      ok = verifier.VerifyFinal();
+      EXPECT_FALSE(ok);
+    }
+  }
+}
diff --git a/crypto/symmetric_key.h b/crypto/symmetric_key.h
new file mode 100644
index 0000000..413f61e
--- /dev/null
+++ b/crypto/symmetric_key.h
@@ -0,0 +1,101 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CRYPTO_SYMMETRIC_KEY_H_
+#define CRYPTO_SYMMETRIC_KEY_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "crypto/crypto_export.h"
+
+#if defined(NACL_WIN64)
+// See comments for crypto_nacl_win64 in crypto.gyp.
+// Must test for NACL_WIN64 before OS_WIN since former is a subset of latter.
+#include "crypto/scoped_capi_types.h"
+#elif defined(USE_NSS) || \
+    (!defined(USE_OPENSSL) && (defined(OS_WIN) || defined(OS_MACOSX)))
+#include "crypto/scoped_nss_types.h"
+#endif
+
+namespace crypto {
+
+// Wraps a platform-specific symmetric key and allows it to be held in a
+// scoped_ptr.
+class CRYPTO_EXPORT SymmetricKey {
+ public:
+  // Defines the algorithm that a key will be used with. See also
+  // classs Encrptor.
+  enum Algorithm {
+    AES,
+    HMAC_SHA1,
+  };
+
+  virtual ~SymmetricKey();
+
+  // Generates a random key suitable to be used with |algorithm| and of
+  // |key_size_in_bits| bits. |key_size_in_bits| must be a multiple of 8.
+  // The caller is responsible for deleting the returned SymmetricKey.
+  static SymmetricKey* GenerateRandomKey(Algorithm algorithm,
+                                         size_t key_size_in_bits);
+
+  // Derives a key from the supplied password and salt using PBKDF2, suitable
+  // for use with specified |algorithm|. Note |algorithm| is not the algorithm
+  // used to derive the key from the password. |key_size_in_bits| must be a
+  // multiple of 8. The caller is responsible for deleting the returned
+  // SymmetricKey.
+  static SymmetricKey* DeriveKeyFromPassword(Algorithm algorithm,
+                                             const std::string& password,
+                                             const std::string& salt,
+                                             size_t iterations,
+                                             size_t key_size_in_bits);
+
+  // Imports an array of key bytes in |raw_key|. This key may have been
+  // generated by GenerateRandomKey or DeriveKeyFromPassword and exported with
+  // GetRawKey, or via another compatible method. The key must be of suitable
+  // size for use with |algorithm|. The caller owns the returned SymmetricKey.
+  static SymmetricKey* Import(Algorithm algorithm, const std::string& raw_key);
+
+#if defined(USE_OPENSSL)
+  const std::string& key() { return key_; }
+#elif defined(NACL_WIN64)
+  HCRYPTKEY key() const { return key_.get(); }
+#elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
+  PK11SymKey* key() const { return key_.get(); }
+#endif
+
+  // Extracts the raw key from the platform specific data.
+  // Warning: |raw_key| holds the raw key as bytes and thus must be handled
+  // carefully.
+  bool GetRawKey(std::string* raw_key);
+
+ private:
+#if defined(USE_OPENSSL)
+  SymmetricKey() {}
+  std::string key_;
+#elif defined(NACL_WIN64)
+  SymmetricKey(HCRYPTPROV provider, HCRYPTKEY key,
+               const void* key_data, size_t key_size_in_bytes);
+
+  ScopedHCRYPTPROV provider_;
+  ScopedHCRYPTKEY key_;
+
+  // Contains the raw key, if it is known during initialization and when it
+  // is likely that the associated |provider_| will be unable to export the
+  // |key_|. This is the case of HMAC keys when the key size exceeds 16 bytes
+  // when using the default RSA provider.
+  // TODO(rsleevi): See if KP_EFFECTIVE_KEYLEN is the reason why CryptExportKey
+  // fails with NTE_BAD_KEY/NTE_BAD_LEN
+  std::string raw_key_;
+#elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
+  explicit SymmetricKey(PK11SymKey* key);
+  ScopedPK11SymKey key_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(SymmetricKey);
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_SYMMETRIC_KEY_H_
diff --git a/crypto/symmetric_key_nss.cc b/crypto/symmetric_key_nss.cc
new file mode 100644
index 0000000..95ca9bd
--- /dev/null
+++ b/crypto/symmetric_key_nss.cc
@@ -0,0 +1,149 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/symmetric_key.h"
+
+#include <nss.h>
+#include <pk11pub.h>
+
+#include "base/logging.h"
+#include "crypto/nss_util.h"
+
+namespace crypto {
+
+SymmetricKey::~SymmetricKey() {}
+
+// static
+SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
+                                              size_t key_size_in_bits) {
+  DCHECK_EQ(AES, algorithm);
+
+  EnsureNSSInit();
+
+  // Whitelist supported key sizes to avoid accidentaly relying on
+  // algorithms available in NSS but not BoringSSL and vice
+  // versa. Note that BoringSSL does not support AES-192.
+  if (key_size_in_bits != 128 && key_size_in_bits != 256)
+    return NULL;
+
+  ScopedPK11Slot slot(PK11_GetInternalSlot());
+  if (!slot.get())
+    return NULL;
+
+  PK11SymKey* sym_key = PK11_KeyGen(slot.get(), CKM_AES_KEY_GEN, NULL,
+                                    key_size_in_bits / 8, NULL);
+  if (!sym_key)
+    return NULL;
+
+  return new SymmetricKey(sym_key);
+}
+
+// static
+SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
+                                                  const std::string& password,
+                                                  const std::string& salt,
+                                                  size_t iterations,
+                                                  size_t key_size_in_bits) {
+  EnsureNSSInit();
+  if (salt.empty() || iterations == 0 || key_size_in_bits == 0)
+    return NULL;
+
+  if (algorithm == AES) {
+    // Whitelist supported key sizes to avoid accidentaly relying on
+    // algorithms available in NSS but not BoringSSL and vice
+    // versa. Note that BoringSSL does not support AES-192.
+    if (key_size_in_bits != 128 && key_size_in_bits != 256)
+      return NULL;
+  }
+
+  SECItem password_item;
+  password_item.type = siBuffer;
+  password_item.data = reinterpret_cast<unsigned char*>(
+      const_cast<char *>(password.data()));
+  password_item.len = password.size();
+
+  SECItem salt_item;
+  salt_item.type = siBuffer;
+  salt_item.data = reinterpret_cast<unsigned char*>(
+      const_cast<char *>(salt.data()));
+  salt_item.len = salt.size();
+
+  SECOidTag cipher_algorithm =
+      algorithm == AES ? SEC_OID_AES_256_CBC : SEC_OID_HMAC_SHA1;
+  ScopedSECAlgorithmID alg_id(PK11_CreatePBEV2AlgorithmID(SEC_OID_PKCS5_PBKDF2,
+                                                          cipher_algorithm,
+                                                          SEC_OID_HMAC_SHA1,
+                                                          key_size_in_bits / 8,
+                                                          iterations,
+                                                          &salt_item));
+  if (!alg_id.get())
+    return NULL;
+
+  ScopedPK11Slot slot(PK11_GetInternalSlot());
+  if (!slot.get())
+    return NULL;
+
+  PK11SymKey* sym_key = PK11_PBEKeyGen(slot.get(), alg_id.get(), &password_item,
+                                       PR_FALSE, NULL);
+  if (!sym_key)
+    return NULL;
+
+  return new SymmetricKey(sym_key);
+}
+
+// static
+SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
+                                   const std::string& raw_key) {
+  EnsureNSSInit();
+
+  if (algorithm == AES) {
+    // Whitelist supported key sizes to avoid accidentaly relying on
+    // algorithms available in NSS but not BoringSSL and vice
+    // versa. Note that BoringSSL does not support AES-192.
+    if (raw_key.size() != 128/8 && raw_key.size() != 256/8)
+      return NULL;
+  }
+
+  CK_MECHANISM_TYPE cipher =
+      algorithm == AES ? CKM_AES_CBC : CKM_SHA_1_HMAC;
+
+  SECItem key_item;
+  key_item.type = siBuffer;
+  key_item.data = reinterpret_cast<unsigned char*>(
+      const_cast<char *>(raw_key.data()));
+  key_item.len = raw_key.size();
+
+  ScopedPK11Slot slot(PK11_GetInternalSlot());
+  if (!slot.get())
+    return NULL;
+
+  // The exact value of the |origin| argument doesn't matter to NSS as long as
+  // it's not PK11_OriginFortezzaHack, so we pass PK11_OriginUnwrap as a
+  // placeholder.
+  PK11SymKey* sym_key = PK11_ImportSymKey(slot.get(), cipher, PK11_OriginUnwrap,
+                                          CKA_ENCRYPT, &key_item, NULL);
+  if (!sym_key)
+    return NULL;
+
+  return new SymmetricKey(sym_key);
+}
+
+bool SymmetricKey::GetRawKey(std::string* raw_key) {
+  SECStatus rv = PK11_ExtractKeyValue(key_.get());
+  if (SECSuccess != rv)
+    return false;
+
+  SECItem* key_item = PK11_GetKeyData(key_.get());
+  if (!key_item)
+    return false;
+
+  raw_key->assign(reinterpret_cast<char*>(key_item->data), key_item->len);
+  return true;
+}
+
+SymmetricKey::SymmetricKey(PK11SymKey* key) : key_(key) {
+  DCHECK(key);
+}
+
+}  // namespace crypto
diff --git a/crypto/symmetric_key_openssl.cc b/crypto/symmetric_key_openssl.cc
new file mode 100644
index 0000000..e268a1d
--- /dev/null
+++ b/crypto/symmetric_key_openssl.cc
@@ -0,0 +1,104 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/symmetric_key.h"
+
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_util.h"
+#include "crypto/openssl_util.h"
+
+namespace crypto {
+
+SymmetricKey::~SymmetricKey() {
+  std::fill(key_.begin(), key_.end(), '\0');  // Zero out the confidential key.
+}
+
+// static
+SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
+                                              size_t key_size_in_bits) {
+  DCHECK_EQ(AES, algorithm);
+
+  // Whitelist supported key sizes to avoid accidentaly relying on
+  // algorithms available in NSS but not BoringSSL and vice
+  // versa. Note that BoringSSL does not support AES-192.
+  if (key_size_in_bits != 128 && key_size_in_bits != 256)
+    return NULL;
+
+  size_t key_size_in_bytes = key_size_in_bits / 8;
+  DCHECK_EQ(key_size_in_bits, key_size_in_bytes * 8);
+
+  if (key_size_in_bytes == 0)
+    return NULL;
+
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  scoped_ptr<SymmetricKey> key(new SymmetricKey);
+  uint8* key_data =
+      reinterpret_cast<uint8*>(WriteInto(&key->key_, key_size_in_bytes + 1));
+
+  int rv = RAND_bytes(key_data, static_cast<int>(key_size_in_bytes));
+  return rv == 1 ? key.release() : NULL;
+}
+
+// static
+SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
+                                                  const std::string& password,
+                                                  const std::string& salt,
+                                                  size_t iterations,
+                                                  size_t key_size_in_bits) {
+  DCHECK(algorithm == AES || algorithm == HMAC_SHA1);
+
+  if (algorithm == AES) {
+    // Whitelist supported key sizes to avoid accidentaly relying on
+    // algorithms available in NSS but not BoringSSL and vice
+    // versa. Note that BoringSSL does not support AES-192.
+    if (key_size_in_bits != 128 && key_size_in_bits != 256)
+      return NULL;
+  }
+
+  size_t key_size_in_bytes = key_size_in_bits / 8;
+  DCHECK_EQ(key_size_in_bits, key_size_in_bytes * 8);
+
+  if (key_size_in_bytes == 0)
+    return NULL;
+
+  OpenSSLErrStackTracer err_tracer(FROM_HERE);
+  scoped_ptr<SymmetricKey> key(new SymmetricKey);
+  uint8* key_data =
+      reinterpret_cast<uint8*>(WriteInto(&key->key_, key_size_in_bytes + 1));
+  int rv = PKCS5_PBKDF2_HMAC_SHA1(password.data(), password.length(),
+                                  reinterpret_cast<const uint8*>(salt.data()),
+                                  salt.length(), iterations,
+                                  static_cast<int>(key_size_in_bytes),
+                                  key_data);
+  return rv == 1 ? key.release() : NULL;
+}
+
+// static
+SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
+                                   const std::string& raw_key) {
+  if (algorithm == AES) {
+    // Whitelist supported key sizes to avoid accidentaly relying on
+    // algorithms available in NSS but not BoringSSL and vice
+    // versa. Note that BoringSSL does not support AES-192.
+    if (raw_key.size() != 128/8 && raw_key.size() != 256/8)
+      return NULL;
+  }
+
+  scoped_ptr<SymmetricKey> key(new SymmetricKey);
+  key->key_ = raw_key;
+  return key.release();
+}
+
+bool SymmetricKey::GetRawKey(std::string* raw_key) {
+  *raw_key = key_;
+  return true;
+}
+
+}  // namespace crypto
diff --git a/crypto/symmetric_key_unittest.cc b/crypto/symmetric_key_unittest.cc
new file mode 100644
index 0000000..28e44d2
--- /dev/null
+++ b/crypto/symmetric_key_unittest.cc
@@ -0,0 +1,225 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/symmetric_key.h"
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(SymmetricKeyTest, GenerateRandomKey) {
+  scoped_ptr<crypto::SymmetricKey> key(
+      crypto::SymmetricKey::GenerateRandomKey(crypto::SymmetricKey::AES, 256));
+  ASSERT_TRUE(NULL != key.get());
+  std::string raw_key;
+  EXPECT_TRUE(key->GetRawKey(&raw_key));
+  EXPECT_EQ(32U, raw_key.size());
+
+  // Do it again and check that the keys are different.
+  // (Note: this has a one-in-10^77 chance of failure!)
+  scoped_ptr<crypto::SymmetricKey> key2(
+      crypto::SymmetricKey::GenerateRandomKey(crypto::SymmetricKey::AES, 256));
+  ASSERT_TRUE(NULL != key2.get());
+  std::string raw_key2;
+  EXPECT_TRUE(key2->GetRawKey(&raw_key2));
+  EXPECT_EQ(32U, raw_key2.size());
+  EXPECT_NE(raw_key, raw_key2);
+}
+
+TEST(SymmetricKeyTest, ImportGeneratedKey) {
+  scoped_ptr<crypto::SymmetricKey> key1(
+      crypto::SymmetricKey::GenerateRandomKey(crypto::SymmetricKey::AES, 256));
+  ASSERT_TRUE(NULL != key1.get());
+  std::string raw_key1;
+  EXPECT_TRUE(key1->GetRawKey(&raw_key1));
+
+  scoped_ptr<crypto::SymmetricKey> key2(
+      crypto::SymmetricKey::Import(crypto::SymmetricKey::AES, raw_key1));
+  ASSERT_TRUE(NULL != key2.get());
+
+  std::string raw_key2;
+  EXPECT_TRUE(key2->GetRawKey(&raw_key2));
+
+  EXPECT_EQ(raw_key1, raw_key2);
+}
+
+TEST(SymmetricKeyTest, ImportDerivedKey) {
+  scoped_ptr<crypto::SymmetricKey> key1(
+      crypto::SymmetricKey::DeriveKeyFromPassword(
+          crypto::SymmetricKey::HMAC_SHA1, "password", "somesalt", 1024, 160));
+  ASSERT_TRUE(NULL != key1.get());
+  std::string raw_key1;
+  EXPECT_TRUE(key1->GetRawKey(&raw_key1));
+
+  scoped_ptr<crypto::SymmetricKey> key2(
+      crypto::SymmetricKey::Import(crypto::SymmetricKey::HMAC_SHA1, raw_key1));
+  ASSERT_TRUE(NULL != key2.get());
+
+  std::string raw_key2;
+  EXPECT_TRUE(key2->GetRawKey(&raw_key2));
+
+  EXPECT_EQ(raw_key1, raw_key2);
+}
+
+struct PBKDF2TestVector {
+  crypto::SymmetricKey::Algorithm algorithm;
+  const char* password;
+  const char* salt;
+  unsigned int rounds;
+  unsigned int key_size_in_bits;
+  const char* expected;  // ASCII encoded hex bytes
+};
+
+class SymmetricKeyDeriveKeyFromPasswordTest
+    : public testing::TestWithParam<PBKDF2TestVector> {
+};
+
+TEST_P(SymmetricKeyDeriveKeyFromPasswordTest, DeriveKeyFromPassword) {
+  PBKDF2TestVector test_data(GetParam());
+#if defined(OS_MACOSX) && !defined(OS_IOS)
+  // The OS X crypto libraries have minimum salt and iteration requirements
+  // so some of the tests below will cause them to barf. Skip these.
+  if (strlen(test_data.salt) < 8 || test_data.rounds < 1000) {
+    VLOG(1) << "Skipped test vector for " << test_data.expected;
+    return;
+  }
+#endif  // OS_MACOSX
+
+  scoped_ptr<crypto::SymmetricKey> key(
+      crypto::SymmetricKey::DeriveKeyFromPassword(
+          test_data.algorithm,
+          test_data.password, test_data.salt,
+          test_data.rounds, test_data.key_size_in_bits));
+  ASSERT_TRUE(NULL != key.get());
+
+  std::string raw_key;
+  key->GetRawKey(&raw_key);
+  EXPECT_EQ(test_data.key_size_in_bits / 8, raw_key.size());
+  EXPECT_EQ(test_data.expected,
+            base::StringToLowerASCII(base::HexEncode(raw_key.data(),
+                                               raw_key.size())));
+}
+
+static const PBKDF2TestVector kTestVectors[] = {
+  // These tests come from
+  // http://www.ietf.org/id/draft-josefsson-pbkdf2-test-vectors-00.txt
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "salt",
+    1,
+    160,
+    "0c60c80f961f0e71f3a9b524af6012062fe037a6",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "salt",
+    2,
+    160,
+    "ea6c014dc72d6f8ccd1ed92ace1d41f0d8de8957",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "salt",
+    4096,
+    160,
+    "4b007901b765489abead49d926f721d065a429c1",
+  },
+  // This test takes over 30s to run on the trybots.
+#if 0
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "salt",
+    16777216,
+    160,
+    "eefe3d61cd4da4e4e9945b3d6ba2158c2634e984",
+  },
+#endif
+
+  // These tests come from RFC 3962, via BSD source code at
+  // http://www.openbsd.org/cgi-bin/cvsweb/src/sbin/bioctl/pbkdf2.c?rev=HEAD&content-type=text/plain
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "ATHENA.MIT.EDUraeburn",
+    1,
+    160,
+    "cdedb5281bb2f801565a1122b25635150ad1f7a0",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "ATHENA.MIT.EDUraeburn",
+    2,
+    160,
+    "01dbee7f4a9e243e988b62c73cda935da05378b9",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "ATHENA.MIT.EDUraeburn",
+    1200,
+    160,
+    "5c08eb61fdf71e4e4ec3cf6ba1f5512ba7e52ddb",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "password",
+    "\022" "4VxxV4\022", /* 0x1234567878563412 */
+    5,
+    160,
+    "d1daa78615f287e6a1c8b120d7062a493f98d203",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
+    "pass phrase equals block size",
+    1200,
+    160,
+    "139c30c0966bc32ba55fdbf212530ac9c5ec59f1",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
+    "pass phrase exceeds block size",
+    1200,
+    160,
+    "9ccad6d468770cd51b10e6a68721be611a8b4d28",
+  },
+  {
+    crypto::SymmetricKey::HMAC_SHA1,
+    "\360\235\204\236", /* g-clef (0xf09d849e) */
+    "EXAMPLE.COMpianist",
+    50,
+    160,
+    "6b9cf26d45455a43a5b8bb276a403b39e7fe37a0",
+  },
+
+  // Regression tests for AES keys, derived from the Linux NSS implementation.
+  {
+    crypto::SymmetricKey::AES,
+    "A test password",
+    "saltsalt",
+    1,
+    256,
+    "44899a7777f0e6e8b752f875f02044b8ac593de146de896f2e8a816e315a36de",
+  },
+  {
+    crypto::SymmetricKey::AES,
+    "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
+    "pass phrase exceeds block size",
+    20,
+    256,
+    "e0739745dc28b8721ba402e05214d2ac1eab54cf72bee1fba388297a09eb493c",
+  },
+};
+
+INSTANTIATE_TEST_CASE_P(, SymmetricKeyDeriveKeyFromPasswordTest,
+                        testing::ValuesIn(kTestVectors));
diff --git a/crypto/symmetric_key_win.cc b/crypto/symmetric_key_win.cc
new file mode 100644
index 0000000..b3d65f6
--- /dev/null
+++ b/crypto/symmetric_key_win.cc
@@ -0,0 +1,536 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/symmetric_key.h"
+
+#include <vector>
+
+// TODO(wtc): replace scoped_array by std::vector.
+#include "base/memory/scoped_ptr.h"
+#include "base/sys_byteorder.h"
+
+namespace crypto {
+
+namespace {
+
+// The following is a non-public Microsoft header documented in MSDN under
+// CryptImportKey / CryptExportKey. Following the header is the byte array of
+// the actual plaintext key.
+struct PlaintextBlobHeader {
+  BLOBHEADER hdr;
+  DWORD cbKeySize;
+};
+
+// CryptoAPI makes use of three distinct ALG_IDs for AES, rather than just
+// CALG_AES (which exists, but depending on the functions you are calling, may
+// result in function failure, whereas the subtype would succeed).
+ALG_ID GetAESAlgIDForKeySize(size_t key_size_in_bits) {
+  // Only AES-128/-192/-256 is supported in CryptoAPI.
+  switch (key_size_in_bits) {
+    case 128:
+      return CALG_AES_128;
+    case 192:
+      return CALG_AES_192;
+    case 256:
+      return CALG_AES_256;
+    default:
+      NOTREACHED();
+      return 0;
+  }
+};
+
+// Imports a raw/plaintext key of |key_size| stored in |*key_data| into a new
+// key created for the specified |provider|. |alg| contains the algorithm of
+// the key being imported.
+// If |key_data| is intended to be used as an HMAC key, then |alg| should be
+// CALG_HMAC.
+// If successful, returns true and stores the imported key in |*key|.
+// TODO(wtc): use this function in hmac_win.cc.
+bool ImportRawKey(HCRYPTPROV provider,
+                  ALG_ID alg,
+                  const void* key_data, size_t key_size,
+                  ScopedHCRYPTKEY* key) {
+  DCHECK_GT(key_size, 0);
+
+  DWORD actual_size =
+      static_cast<DWORD>(sizeof(PlaintextBlobHeader) + key_size);
+  std::vector<BYTE> tmp_data(actual_size);
+  BYTE* actual_key = &tmp_data[0];
+  memcpy(actual_key + sizeof(PlaintextBlobHeader), key_data, key_size);
+  PlaintextBlobHeader* key_header =
+      reinterpret_cast<PlaintextBlobHeader*>(actual_key);
+  memset(key_header, 0, sizeof(PlaintextBlobHeader));
+
+  key_header->hdr.bType = PLAINTEXTKEYBLOB;
+  key_header->hdr.bVersion = CUR_BLOB_VERSION;
+  key_header->hdr.aiKeyAlg = alg;
+
+  key_header->cbKeySize = static_cast<DWORD>(key_size);
+
+  HCRYPTKEY unsafe_key = NULL;
+  DWORD flags = CRYPT_EXPORTABLE;
+  if (alg == CALG_HMAC) {
+    // Though it may appear odd that IPSEC and RC2 are being used, this is
+    // done in accordance with Microsoft's FIPS 140-2 Security Policy for the
+    // RSA Enhanced Provider, as the approved means of using arbitrary HMAC
+    // key material.
+    key_header->hdr.aiKeyAlg = CALG_RC2;
+    flags |= CRYPT_IPSEC_HMAC_KEY;
+  }
+
+  BOOL ok =
+      CryptImportKey(provider, actual_key, actual_size, 0, flags, &unsafe_key);
+
+  // Clean up the temporary copy of key, regardless of whether it was imported
+  // sucessfully or not.
+  SecureZeroMemory(actual_key, actual_size);
+
+  if (!ok)
+    return false;
+
+  key->reset(unsafe_key);
+  return true;
+}
+
+// Attempts to generate a random AES key of |key_size_in_bits|. Returns true
+// if generation is successful, storing the generated key in |*key| and the
+// key provider (CSP) in |*provider|.
+bool GenerateAESKey(size_t key_size_in_bits,
+                    ScopedHCRYPTPROV* provider,
+                    ScopedHCRYPTKEY* key) {
+  DCHECK(provider);
+  DCHECK(key);
+
+  ALG_ID alg = GetAESAlgIDForKeySize(key_size_in_bits);
+  if (alg == 0)
+    return false;
+
+  ScopedHCRYPTPROV safe_provider;
+  // Note: The only time NULL is safe to be passed as pszContainer is when
+  // dwFlags contains CRYPT_VERIFYCONTEXT, as all keys generated and/or used
+  // will be treated as ephemeral keys and not persisted.
+  BOOL ok = CryptAcquireContext(safe_provider.receive(), NULL, NULL,
+                                PROV_RSA_AES, CRYPT_VERIFYCONTEXT);
+  if (!ok)
+    return false;
+
+  ScopedHCRYPTKEY safe_key;
+  // In the FIPS 140-2 Security Policy for CAPI on XP/Vista+, Microsoft notes
+  // that CryptGenKey makes use of the same functionality exposed via
+  // CryptGenRandom. The reason this is being used, as opposed to
+  // CryptGenRandom and CryptImportKey is for compliance with the security
+  // policy
+  ok = CryptGenKey(safe_provider.get(), alg, CRYPT_EXPORTABLE,
+                   safe_key.receive());
+  if (!ok)
+    return false;
+
+  key->swap(safe_key);
+  provider->swap(safe_provider);
+
+  return true;
+}
+
+// Returns true if the HMAC key size meets the requirement of FIPS 198
+// Section 3.  |alg| is the hash function used in the HMAC.
+bool CheckHMACKeySize(size_t key_size_in_bits, ALG_ID alg) {
+  DWORD hash_size = 0;
+  switch (alg) {
+    case CALG_SHA1:
+      hash_size = 20;
+      break;
+    case CALG_SHA_256:
+      hash_size = 32;
+      break;
+    case CALG_SHA_384:
+      hash_size = 48;
+      break;
+    case CALG_SHA_512:
+      hash_size = 64;
+      break;
+  }
+  if (hash_size == 0)
+    return false;
+
+  // An HMAC key must be >= L/2, where L is the output size of the hash
+  // function being used.
+  return (key_size_in_bits >= (hash_size / 2 * 8) &&
+         (key_size_in_bits % 8) == 0);
+}
+
+// Attempts to generate a random, |key_size_in_bits|-long HMAC key, for use
+// with the hash function |alg|.
+// |key_size_in_bits| must be >= 1/2 the hash size of |alg| for security.
+// Returns true if generation is successful, storing the generated key in
+// |*key| and the key provider (CSP) in |*provider|.
+bool GenerateHMACKey(size_t key_size_in_bits,
+                     ALG_ID alg,
+                     ScopedHCRYPTPROV* provider,
+                     ScopedHCRYPTKEY* key,
+                     scoped_ptr<BYTE[]>* raw_key) {
+  DCHECK(provider);
+  DCHECK(key);
+  DCHECK(raw_key);
+
+  if (!CheckHMACKeySize(key_size_in_bits, alg))
+    return false;
+
+  ScopedHCRYPTPROV safe_provider;
+  // See comment in GenerateAESKey as to why NULL is acceptable for the
+  // container name.
+  BOOL ok = CryptAcquireContext(safe_provider.receive(), NULL, NULL,
+                                PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
+  if (!ok)
+    return false;
+
+  DWORD key_size_in_bytes = static_cast<DWORD>(key_size_in_bits / 8);
+  scoped_ptr<BYTE[]> random(new BYTE[key_size_in_bytes]);
+  ok = CryptGenRandom(safe_provider, key_size_in_bytes, random.get());
+  if (!ok)
+    return false;
+
+  ScopedHCRYPTKEY safe_key;
+  bool rv = ImportRawKey(safe_provider, CALG_HMAC, random.get(),
+                         key_size_in_bytes, &safe_key);
+  if (rv) {
+    key->swap(safe_key);
+    provider->swap(safe_provider);
+    raw_key->swap(random);
+  }
+
+  SecureZeroMemory(random.get(), key_size_in_bytes);
+  return rv;
+}
+
+// Attempts to create an HMAC hash instance using the specified |provider|
+// and |key|. The inner hash function will be |hash_alg|. If successful,
+// returns true and stores the hash in |*hash|.
+// TODO(wtc): use this function in hmac_win.cc.
+bool CreateHMACHash(HCRYPTPROV provider,
+                    HCRYPTKEY key,
+                    ALG_ID hash_alg,
+                    ScopedHCRYPTHASH* hash) {
+  ScopedHCRYPTHASH safe_hash;
+  BOOL ok = CryptCreateHash(provider, CALG_HMAC, key, 0, safe_hash.receive());
+  if (!ok)
+    return false;
+
+  HMAC_INFO hmac_info;
+  memset(&hmac_info, 0, sizeof(hmac_info));
+  hmac_info.HashAlgid = hash_alg;
+
+  ok = CryptSetHashParam(safe_hash, HP_HMAC_INFO,
+                         reinterpret_cast<const BYTE*>(&hmac_info), 0);
+  if (!ok)
+    return false;
+
+  hash->swap(safe_hash);
+  return true;
+}
+
+// Computes a block of the derived key using the PBKDF2 function F for the
+// specified |block_index| using the PRF |hash|, writing the output to
+// |output_buf|.
+// |output_buf| must have enough space to accomodate the output of the PRF
+// specified by |hash|.
+// Returns true if the block was successfully computed.
+bool ComputePBKDF2Block(HCRYPTHASH hash,
+                        DWORD hash_size,
+                        const std::string& salt,
+                        size_t iterations,
+                        uint32 block_index,
+                        BYTE* output_buf) {
+  // From RFC 2898:
+  // 3. <snip> The function F is defined as the exclusive-or sum of the first
+  //    c iterates of the underlying pseudorandom function PRF applied to the
+  //    password P and the concatenation of the salt S and the block index i:
+  //      F (P, S, c, i) = U_1 \xor U_2 \xor ... \xor U_c
+  //    where
+  //      U_1 = PRF(P, S || INT (i))
+  //      U_2 = PRF(P, U_1)
+  //      ...
+  //      U_c = PRF(P, U_{c-1})
+  ScopedHCRYPTHASH safe_hash;
+  BOOL ok = CryptDuplicateHash(hash, NULL, 0, safe_hash.receive());
+  if (!ok)
+    return false;
+
+  // Iteration U_1: Compute PRF for S.
+  ok = CryptHashData(safe_hash, reinterpret_cast<const BYTE*>(salt.data()),
+                     static_cast<DWORD>(salt.size()), 0);
+  if (!ok)
+    return false;
+
+  // Iteration U_1: and append (big-endian) INT (i).
+  uint32 big_endian_block_index = base::HostToNet32(block_index);
+  ok = CryptHashData(safe_hash,
+                     reinterpret_cast<BYTE*>(&big_endian_block_index),
+                     sizeof(big_endian_block_index), 0);
+
+  std::vector<BYTE> hash_value(hash_size);
+
+  DWORD size = hash_size;
+  ok = CryptGetHashParam(safe_hash, HP_HASHVAL, &hash_value[0], &size, 0);
+  if (!ok  || size != hash_size)
+    return false;
+
+  memcpy(output_buf, &hash_value[0], hash_size);
+
+  // Iteration 2 - c: Compute U_{iteration} by applying the PRF to
+  // U_{iteration - 1}, then xor the resultant hash with |output|, which
+  // contains U_1 ^ U_2 ^ ... ^ U_{iteration - 1}.
+  for (size_t iteration = 2; iteration <= iterations; ++iteration) {
+    safe_hash.reset();
+    ok = CryptDuplicateHash(hash, NULL, 0, safe_hash.receive());
+    if (!ok)
+      return false;
+
+    ok = CryptHashData(safe_hash, &hash_value[0], hash_size, 0);
+    if (!ok)
+      return false;
+
+    size = hash_size;
+    ok = CryptGetHashParam(safe_hash, HP_HASHVAL, &hash_value[0], &size, 0);
+    if (!ok || size != hash_size)
+      return false;
+
+    for (int i = 0; i < hash_size; ++i)
+      output_buf[i] ^= hash_value[i];
+  }
+
+  return true;
+}
+
+}  // namespace
+
+SymmetricKey::~SymmetricKey() {
+  // TODO(wtc): create a "secure" string type that zeroes itself in the
+  // destructor.
+  if (!raw_key_.empty())
+    SecureZeroMemory(const_cast<char *>(raw_key_.data()), raw_key_.size());
+}
+
+// static
+SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
+                                              size_t key_size_in_bits) {
+  DCHECK_GE(key_size_in_bits, 8);
+
+  ScopedHCRYPTPROV provider;
+  ScopedHCRYPTKEY key;
+
+  bool ok = false;
+  scoped_ptr<BYTE[]> raw_key;
+
+  switch (algorithm) {
+    case AES:
+      ok = GenerateAESKey(key_size_in_bits, &provider, &key);
+      break;
+    case HMAC_SHA1:
+      ok = GenerateHMACKey(key_size_in_bits, CALG_SHA1, &provider,
+                           &key, &raw_key);
+      break;
+  }
+
+  if (!ok) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  size_t key_size_in_bytes = key_size_in_bits / 8;
+  if (raw_key == NULL)
+    key_size_in_bytes = 0;
+
+  SymmetricKey* result = new SymmetricKey(provider.release(),
+                                          key.release(),
+                                          raw_key.get(),
+                                          key_size_in_bytes);
+  if (raw_key != NULL)
+    SecureZeroMemory(raw_key.get(), key_size_in_bytes);
+
+  return result;
+}
+
+// static
+SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
+                                                  const std::string& password,
+                                                  const std::string& salt,
+                                                  size_t iterations,
+                                                  size_t key_size_in_bits) {
+  // CryptoAPI lacks routines to perform PBKDF2 derivation as specified
+  // in RFC 2898, so it must be manually implemented. Only HMAC-SHA1 is
+  // supported as the PRF.
+
+  // While not used until the end, sanity-check the input before proceeding
+  // with the expensive computation.
+  DWORD provider_type = 0;
+  ALG_ID alg = 0;
+  switch (algorithm) {
+    case AES:
+      provider_type = PROV_RSA_AES;
+      alg = GetAESAlgIDForKeySize(key_size_in_bits);
+      break;
+    case HMAC_SHA1:
+      provider_type = PROV_RSA_FULL;
+      alg = CALG_HMAC;
+      break;
+    default:
+      NOTREACHED();
+      break;
+  }
+  if (provider_type == 0 || alg == 0)
+    return NULL;
+
+  ScopedHCRYPTPROV provider;
+  BOOL ok = CryptAcquireContext(provider.receive(), NULL, NULL, provider_type,
+                                CRYPT_VERIFYCONTEXT);
+  if (!ok)
+    return NULL;
+
+  // Convert the user password into a key suitable to be fed into the PRF
+  // function.
+  ScopedHCRYPTKEY password_as_key;
+  BYTE* password_as_bytes =
+      const_cast<BYTE*>(reinterpret_cast<const BYTE*>(password.data()));
+  if (!ImportRawKey(provider, CALG_HMAC, password_as_bytes,
+                    password.size(), &password_as_key))
+    return NULL;
+
+  // Configure the PRF function. Only HMAC variants are supported, with the
+  // only hash function supported being SHA1.
+  // TODO(rsleevi): Support SHA-256 on XP SP3+.
+  ScopedHCRYPTHASH prf;
+  if (!CreateHMACHash(provider, password_as_key, CALG_SHA1, &prf))
+    return NULL;
+
+  DWORD hLen = 0;
+  DWORD param_size = sizeof(hLen);
+  ok = CryptGetHashParam(prf, HP_HASHSIZE,
+                         reinterpret_cast<BYTE*>(&hLen), &param_size, 0);
+  if (!ok || hLen == 0)
+    return NULL;
+
+  // 1. If dkLen > (2^32 - 1) * hLen, output "derived key too long" and stop.
+  size_t dkLen = key_size_in_bits / 8;
+  DCHECK_GT(dkLen, 0);
+
+  if ((dkLen / hLen) > 0xFFFFFFFF) {
+    DLOG(ERROR) << "Derived key too long.";
+    return NULL;
+  }
+
+  // 2. Let l be the number of hLen-octet blocks in the derived key,
+  //    rounding up, and let r be the number of octets in the last
+  //    block:
+  size_t L = (dkLen + hLen - 1) / hLen;
+  DCHECK_GT(L, 0);
+
+  size_t total_generated_size = L * hLen;
+  std::vector<BYTE> generated_key(total_generated_size);
+  BYTE* block_offset = &generated_key[0];
+
+  // 3. For each block of the derived key apply the function F defined below
+  //    to the password P, the salt S, the iteration count c, and the block
+  //    index to compute the block:
+  //    T_1 = F (P, S, c, 1)
+  //    T_2 = F (P, S, c, 2)
+  //    ...
+  //    T_l = F (P, S, c, l)
+  // <snip>
+  // 4. Concatenate the blocks and extract the first dkLen octets to produce
+  //    a derived key DK:
+  //    DK = T_1 || T_2 || ... || T_l<0..r-1>
+  for (uint32 block_index = 1; block_index <= L; ++block_index) {
+    if (!ComputePBKDF2Block(prf, hLen, salt, iterations, block_index,
+                            block_offset))
+        return NULL;
+    block_offset += hLen;
+  }
+
+  // Convert the derived key bytes into a key handle for the desired algorithm.
+  ScopedHCRYPTKEY key;
+  if (!ImportRawKey(provider, alg, &generated_key[0], dkLen, &key))
+    return NULL;
+
+  SymmetricKey* result = new SymmetricKey(provider.release(), key.release(),
+                                          &generated_key[0], dkLen);
+
+  SecureZeroMemory(&generated_key[0], total_generated_size);
+
+  return result;
+}
+
+// static
+SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
+                                   const std::string& raw_key) {
+  DWORD provider_type = 0;
+  ALG_ID alg = 0;
+  switch (algorithm) {
+    case AES:
+      provider_type = PROV_RSA_AES;
+      alg = GetAESAlgIDForKeySize(raw_key.size() * 8);
+      break;
+    case HMAC_SHA1:
+      provider_type = PROV_RSA_FULL;
+      alg = CALG_HMAC;
+      break;
+    default:
+      NOTREACHED();
+      break;
+  }
+  if (provider_type == 0 || alg == 0)
+    return NULL;
+
+  ScopedHCRYPTPROV provider;
+  BOOL ok = CryptAcquireContext(provider.receive(), NULL, NULL, provider_type,
+                                CRYPT_VERIFYCONTEXT);
+  if (!ok)
+    return NULL;
+
+  ScopedHCRYPTKEY key;
+  if (!ImportRawKey(provider, alg, raw_key.data(), raw_key.size(), &key))
+    return NULL;
+
+  return new SymmetricKey(provider.release(), key.release(),
+                          raw_key.data(), raw_key.size());
+}
+
+bool SymmetricKey::GetRawKey(std::string* raw_key) {
+  // Short circuit for when the key was supplied to the constructor.
+  if (!raw_key_.empty()) {
+    *raw_key = raw_key_;
+    return true;
+  }
+
+  DWORD size = 0;
+  BOOL ok = CryptExportKey(key_, 0, PLAINTEXTKEYBLOB, 0, NULL, &size);
+  if (!ok)
+    return false;
+
+  std::vector<BYTE> result(size);
+
+  ok = CryptExportKey(key_, 0, PLAINTEXTKEYBLOB, 0, &result[0], &size);
+  if (!ok)
+    return false;
+
+  PlaintextBlobHeader* header =
+      reinterpret_cast<PlaintextBlobHeader*>(&result[0]);
+  raw_key->assign(reinterpret_cast<char*>(&result[sizeof(*header)]),
+                  header->cbKeySize);
+
+  SecureZeroMemory(&result[0], size);
+
+  return true;
+}
+
+SymmetricKey::SymmetricKey(HCRYPTPROV provider,
+                           HCRYPTKEY key,
+                           const void* key_data, size_t key_size_in_bytes)
+    : provider_(provider), key_(key) {
+  if (key_data) {
+    raw_key_.assign(reinterpret_cast<const char*>(key_data),
+                    key_size_in_bytes);
+  }
+}
+
+}  // namespace crypto
diff --git a/crypto/third_party/nss/LICENSE b/crypto/third_party/nss/LICENSE
new file mode 100644
index 0000000..0367164
--- /dev/null
+++ b/crypto/third_party/nss/LICENSE
@@ -0,0 +1,35 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
diff --git a/crypto/third_party/nss/README.chromium b/crypto/third_party/nss/README.chromium
new file mode 100644
index 0000000..1a63665
--- /dev/null
+++ b/crypto/third_party/nss/README.chromium
@@ -0,0 +1,18 @@
+Name: Network Security Services (NSS)
+URL: http://www.mozilla.org/projects/security/pki/nss/
+License: MPL 1.1/GPL 2.0/LGPL 2.1
+
+We extracted the SHA-256 source files, eliminated unneeded dependencies,
+deleted or commented out unused code, and tweaked them for Chrome's source
+tree.  sha512.c is renamed sha512.cc so that it can include Chrome's C++
+header "base/basictypes.h".  We define NOUNROLL256 to reduce the object code
+size.
+
+In blapi.h and sha512.cc, replaced uint32 by unsigned int so that they can
+be compiled with -DNO_NSPR_10_SUPPORT.  NO_NSPR_10_SUPPORT turns off the
+definition of the NSPR 1.0 types int8 - int64 and uint8 - uint64 to avoid
+conflict with the same-named types defined in "base/basictypes.h".
+
+rsawrapr.c is copied from nss/lib/softoken/rsawrapr.c, with
+HASH_GetRawHashObject changed to HASH_GetHashObject. It contains the
+emsa_pss_verify function for verifying RSA-PSS signatures.
diff --git a/crypto/third_party/nss/chromium-blapi.h b/crypto/third_party/nss/chromium-blapi.h
new file mode 100644
index 0000000..2ca772e
--- /dev/null
+++ b/crypto/third_party/nss/chromium-blapi.h
@@ -0,0 +1,101 @@
+/*
+ * crypto.h - public data structures and prototypes for the crypto library
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Dr Vipul Gupta <vipul.gupta@sun.com>, Sun Microsystems Laboratories
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+/* $Id: blapi.h,v 1.27 2007/11/09 18:49:32 wtc%google.com Exp $ */
+
+#ifndef CRYPTO_THIRD_PARTY_NSS_CHROMIUM_BLAPI_H_
+#define CRYPTO_THIRD_PARTY_NSS_CHROMIUM_BLAPI_H_
+
+#include "crypto/third_party/nss/chromium-blapit.h"
+
+/******************************************/
+
+extern SHA256Context *SHA256_NewContext(void);
+extern void SHA256_DestroyContext(SHA256Context *cx, PRBool freeit);
+extern void SHA256_Begin(SHA256Context *cx);
+extern void SHA256_Update(SHA256Context *cx, const unsigned char *input,
+			unsigned int inputLen);
+extern void SHA256_End(SHA256Context *cx, unsigned char *digest,
+		     unsigned int *digestLen, unsigned int maxDigestLen);
+extern SECStatus SHA256_HashBuf(unsigned char *dest, const unsigned char *src,
+			      unsigned int src_length);
+extern SECStatus SHA256_Hash(unsigned char *dest, const char *src);
+extern void SHA256_TraceState(SHA256Context *cx);
+extern unsigned int SHA256_FlattenSize(SHA256Context *cx);
+extern SECStatus SHA256_Flatten(SHA256Context *cx,unsigned char *space);
+extern SHA256Context * SHA256_Resurrect(unsigned char *space, void *arg);
+extern void SHA256_Clone(SHA256Context *dest, SHA256Context *src);
+
+/******************************************/
+
+extern SHA512Context *SHA512_NewContext(void);
+extern void SHA512_DestroyContext(SHA512Context *cx, PRBool freeit);
+extern void SHA512_Begin(SHA512Context *cx);
+extern void SHA512_Update(SHA512Context *cx, const unsigned char *input,
+			unsigned int inputLen);
+extern void SHA512_End(SHA512Context *cx, unsigned char *digest,
+		     unsigned int *digestLen, unsigned int maxDigestLen);
+extern SECStatus SHA512_HashBuf(unsigned char *dest, const unsigned char *src,
+			      unsigned int src_length);
+extern SECStatus SHA512_Hash(unsigned char *dest, const char *src);
+extern void SHA512_TraceState(SHA512Context *cx);
+extern unsigned int SHA512_FlattenSize(SHA512Context *cx);
+extern SECStatus SHA512_Flatten(SHA512Context *cx,unsigned char *space);
+extern SHA512Context * SHA512_Resurrect(unsigned char *space, void *arg);
+extern void SHA512_Clone(SHA512Context *dest, SHA512Context *src);
+
+/******************************************/
+
+extern SHA384Context *SHA384_NewContext(void);
+extern void SHA384_DestroyContext(SHA384Context *cx, PRBool freeit);
+extern void SHA384_Begin(SHA384Context *cx);
+extern void SHA384_Update(SHA384Context *cx, const unsigned char *input,
+			unsigned int inputLen);
+extern void SHA384_End(SHA384Context *cx, unsigned char *digest,
+		     unsigned int *digestLen, unsigned int maxDigestLen);
+extern SECStatus SHA384_HashBuf(unsigned char *dest, const unsigned char *src,
+			      unsigned int src_length);
+extern SECStatus SHA384_Hash(unsigned char *dest, const char *src);
+extern void SHA384_TraceState(SHA384Context *cx);
+extern unsigned int SHA384_FlattenSize(SHA384Context *cx);
+extern SECStatus SHA384_Flatten(SHA384Context *cx,unsigned char *space);
+extern SHA384Context * SHA384_Resurrect(unsigned char *space, void *arg);
+extern void SHA384_Clone(SHA384Context *dest, SHA384Context *src);
+
+#endif /* CRYPTO_THIRD_PARTY_NSS_CHROMIUM_BLAPI_H_ */
diff --git a/crypto/third_party/nss/chromium-blapit.h b/crypto/third_party/nss/chromium-blapit.h
new file mode 100644
index 0000000..938547a
--- /dev/null
+++ b/crypto/third_party/nss/chromium-blapit.h
@@ -0,0 +1,91 @@
+/*
+ * blapit.h - public data structures for the crypto library
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Dr Vipul Gupta <vipul.gupta@sun.com> and
+ *   Douglas Stebila <douglas@stebila.ca>, Sun Microsystems Laboratories
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+/* $Id: blapit.h,v 1.20 2007/02/28 19:47:37 rrelyea%redhat.com Exp $ */
+
+#ifndef CRYPTO_THIRD_PARTY_NSS_CHROMIUM_BLAPIT_H_
+#define CRYPTO_THIRD_PARTY_NSS_CHROMIUM_BLAPIT_H_
+
+#include "crypto/third_party/nss/chromium-prtypes.h"
+
+/*
+** A status code. Status's are used by procedures that return status
+** values. Again the motivation is so that a compiler can generate
+** warnings when return values are wrong. Correct testing of status codes:
+**
+**      SECStatus rv;
+**      rv = some_function (some_argument);
+**      if (rv != SECSuccess)
+**              do_an_error_thing();
+**
+*/
+typedef enum _SECStatus {
+    SECWouldBlock = -2,
+    SECFailure = -1,
+    SECSuccess = 0
+} SECStatus;
+
+#define SHA256_LENGTH 		32 	/* bytes */
+#define SHA384_LENGTH 		48 	/* bytes */
+#define SHA512_LENGTH 		64 	/* bytes */
+#define HASH_LENGTH_MAX         SHA512_LENGTH
+
+/*
+ * Input block size for each hash algorithm.
+ */
+
+#define SHA256_BLOCK_LENGTH      64     /* bytes */
+#define SHA384_BLOCK_LENGTH     128     /* bytes */
+#define SHA512_BLOCK_LENGTH     128     /* bytes */
+#define HASH_BLOCK_LENGTH_MAX   SHA512_BLOCK_LENGTH
+
+/***************************************************************************
+** Opaque objects
+*/
+
+struct SHA256ContextStr     ;
+struct SHA512ContextStr     ;
+
+typedef struct SHA256ContextStr     SHA256Context;
+typedef struct SHA512ContextStr     SHA512Context;
+/* SHA384Context is really a SHA512ContextStr.  This is not a mistake. */
+typedef struct SHA512ContextStr     SHA384Context;
+
+#endif /* CRYPTO_THIRD_PARTY_NSS_CHROMIUM_BLAPIT_H_ */
diff --git a/crypto/third_party/nss/chromium-nss.h b/crypto/third_party/nss/chromium-nss.h
new file mode 100644
index 0000000..437e6bd
--- /dev/null
+++ b/crypto/third_party/nss/chromium-nss.h
@@ -0,0 +1,79 @@
+ /* ***** BEGIN LICENSE BLOCK *****
+  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+  *
+  * The contents of this file are subject to the Mozilla Public License Version
+  * 1.1 (the "License"); you may not use this file except in compliance with
+  * the License. You may obtain a copy of the License at
+  * http://www.mozilla.org/MPL/
+  *
+  * Software distributed under the License is distributed on an "AS IS" basis,
+  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+  * for the specific language governing rights and limitations under the
+  * License.
+  *
+  * The Original Code is the Netscape security libraries.
+  *
+  * The Initial Developer of the Original Code is
+  * Netscape Communications Corporation.
+  * Portions created by the Initial Developer are Copyright (C) 1994-2000
+  * the Initial Developer. All Rights Reserved.
+  *
+  * Contributor(s):
+  *
+  * Alternatively, the contents of this file may be used under the terms of
+  * either the GNU General Public License Version 2 or later (the "GPL"), or
+  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+  * in which case the provisions of the GPL or the LGPL are applicable instead
+  * of those above. If you wish to allow use of your version of this file only
+  * under the terms of either the GPL or the LGPL, and not to allow others to
+  * use your version of this file under the terms of the MPL, indicate your
+  * decision by deleting the provisions above and replace them with the notice
+  * and other provisions required by the GPL or the LGPL. If you do not delete
+  * the provisions above, a recipient may use your version of this file under
+  * the terms of any one of the MPL, the GPL or the LGPL.
+  *
+  * ***** END LICENSE BLOCK ***** */
+
+#ifndef CRYPTO_THIRD_PARTY_NSS_CHROMIUM_NSS_H_
+#define CRYPTO_THIRD_PARTY_NSS_CHROMIUM_NSS_H_
+
+// This file contains some functions we borrowed from NSS.
+
+#include <prtypes.h>
+#include <hasht.h>
+#include <keyhi.h>
+#include <secmod.h>
+
+#include "crypto/crypto_export.h"
+
+extern "C" SECStatus emsa_pss_verify(const unsigned char *mHash,
+                                     const unsigned char *em,
+                                     unsigned int emLen,
+                                     HASH_HashType hashAlg,
+                                     HASH_HashType maskHashAlg,
+                                     unsigned int sLen);
+
+// Like PK11_ImportEncryptedPrivateKeyInfo, but hardcoded for EC, and returns
+// the SECKEYPrivateKey.
+// See https://bugzilla.mozilla.org/show_bug.cgi?id=211546
+// When we use NSS 3.13.2 or later,
+// PK11_ImportEncryptedPrivateKeyInfoAndReturnKey can be used instead.
+SECStatus ImportEncryptedECPrivateKeyInfoAndReturnKey(
+    PK11SlotInfo* slot,
+    SECKEYEncryptedPrivateKeyInfo* epki,
+    SECItem* password,
+    SECItem* nickname,
+    SECItem* public_value,
+    PRBool permanent,
+    PRBool sensitive,
+    SECKEYPrivateKey** private_key,
+    void* wincx);
+
+// Like SEC_DerSignData.
+CRYPTO_EXPORT SECStatus DerSignData(PLArenaPool *arena,
+                                    SECItem *result,
+                                    SECItem *input,
+                                    SECKEYPrivateKey *key,
+                                    SECOidTag algo_id);
+
+#endif  // CRYPTO_THIRD_PARTY_NSS_CHROMIUM_NSS_H_
diff --git a/crypto/third_party/nss/chromium-prtypes.h b/crypto/third_party/nss/chromium-prtypes.h
new file mode 100644
index 0000000..d5ea8a9
--- /dev/null
+++ b/crypto/third_party/nss/chromium-prtypes.h
@@ -0,0 +1,77 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/* Emulates the real prtypes.h. Defines the types and macros that sha512.cc
+ * needs. */
+
+#ifndef CRYPTO_THIRD_PARTY_NSS_CHROMIUM_PRTYPES_H_
+#define CRYPTO_THIRD_PARTY_NSS_CHROMIUM_PRTYPES_H_
+
+#include <limits.h>
+#include <stdint.h>
+
+#include "build/build_config.h"
+
+#if defined(ARCH_CPU_LITTLE_ENDIAN)
+#define IS_LITTLE_ENDIAN 1
+#else
+#define IS_BIG_ENDIAN 1
+#endif
+
+/*
+ * The C language requires that 'long' be at least 32 bits. 2147483647 is the
+ * largest signed 32-bit integer.
+ */
+#if LONG_MAX > 2147483647L
+#define PR_BYTES_PER_LONG 8
+#else
+#define PR_BYTES_PER_LONG 4
+#endif
+
+#define HAVE_LONG_LONG
+
+#if defined(__linux__)
+#define LINUX
+#endif
+
+typedef uint8_t PRUint8;
+typedef uint32_t PRUint32;
+
+typedef int PRBool;
+
+#define PR_MIN(x,y) ((x)<(y)?(x):(y))
+
+#endif  /* CRYPTO_THIRD_PARTY_NSS_CHROMIUM_PRTYPES_H_ */
diff --git a/crypto/third_party/nss/chromium-sha256.h b/crypto/third_party/nss/chromium-sha256.h
new file mode 100644
index 0000000..52815ca
--- /dev/null
+++ b/crypto/third_party/nss/chromium-sha256.h
@@ -0,0 +1,51 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef CRYPTO_THIRD_PARTY_NSS_CHROMIUM_SHA_256_H_
+#define CRYPTO_THIRD_PARTY_NSS_CHROMIUM_SHA_256_H_
+
+#include "crypto/third_party/nss/chromium-prtypes.h"
+
+struct SHA256ContextStr {
+    union {
+	PRUint32 w[64];	    /* message schedule, input buffer, plus 48 words */
+	PRUint8  b[256];
+    } u;
+    PRUint32 h[8];		/* 8 state variables */
+    PRUint32 sizeHi,sizeLo;	/* 64-bit count of hashed bytes. */
+};
+
+#endif /* CRYPTO_THIRD_PARTY_NSS_CHROMIUM_SHA_256_H_ */
diff --git a/crypto/third_party/nss/pk11akey.cc b/crypto/third_party/nss/pk11akey.cc
new file mode 100644
index 0000000..4db582f
--- /dev/null
+++ b/crypto/third_party/nss/pk11akey.cc
@@ -0,0 +1,98 @@
+ /* ***** BEGIN LICENSE BLOCK *****
+  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+  *
+  * The contents of this file are subject to the Mozilla Public License Version
+  * 1.1 (the "License"); you may not use this file except in compliance with
+  * the License. You may obtain a copy of the License at
+  * http://www.mozilla.org/MPL/
+  *
+  * Software distributed under the License is distributed on an "AS IS" basis,
+  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+  * for the specific language governing rights and limitations under the
+  * License.
+  *
+  * The Original Code is the Netscape security libraries.
+  *
+  * The Initial Developer of the Original Code is
+  * Netscape Communications Corporation.
+  * Portions created by the Initial Developer are Copyright (C) 1994-2000
+  * the Initial Developer. All Rights Reserved.
+  *
+  * Contributor(s):
+  *   Dr Stephen Henson <stephen.henson@gemplus.com>
+  *   Dr Vipul Gupta <vipul.gupta@sun.com>, and
+  *   Douglas Stebila <douglas@stebila.ca>, Sun Microsystems Laboratories
+  *
+  * Alternatively, the contents of this file may be used under the terms of
+  * either the GNU General Public License Version 2 or later (the "GPL"), or
+  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+  * in which case the provisions of the GPL or the LGPL are applicable instead
+  * of those above. If you wish to allow use of your version of this file only
+  * under the terms of either the GPL or the LGPL, and not to allow others to
+  * use your version of this file under the terms of the MPL, indicate your
+  * decision by deleting the provisions above and replace them with the notice
+  * and other provisions required by the GPL or the LGPL. If you do not delete
+  * the provisions above, a recipient may use your version of this file under
+  * the terms of any one of the MPL, the GPL or the LGPL.
+  *
+  * ***** END LICENSE BLOCK ***** */
+
+#include "crypto/third_party/nss/chromium-nss.h"
+
+#include <pk11pub.h>
+
+#include "base/logging.h"
+
+// Based on PK11_ImportEncryptedPrivateKeyInfo function in
+// mozilla/security/nss/lib/pk11wrap/pk11akey.c.
+SECStatus ImportEncryptedECPrivateKeyInfoAndReturnKey(
+    PK11SlotInfo* slot,
+    SECKEYEncryptedPrivateKeyInfo* epki,
+    SECItem* password,
+    SECItem* nickname,
+    SECItem* public_value,
+    PRBool permanent,
+    PRBool sensitive,
+    SECKEYPrivateKey** private_key,
+    void* wincx) {
+  SECItem* crypto_param = NULL;
+
+  CK_ATTRIBUTE_TYPE usage = CKA_SIGN;
+
+  PK11SymKey* key = PK11_PBEKeyGen(slot,
+                                   &epki->algorithm,
+                                   password,
+                                   PR_FALSE,  // faulty3DES
+                                   wincx);
+  if (key == NULL) {
+    DLOG(ERROR) << "PK11_PBEKeyGen: " << PORT_GetError();
+    return SECFailure;
+  }
+
+  CK_MECHANISM_TYPE crypto_mech_type = PK11_GetPBECryptoMechanism(
+      &epki->algorithm, &crypto_param, password);
+  if (crypto_mech_type == CKM_INVALID_MECHANISM) {
+    DLOG(ERROR) << "PK11_GetPBECryptoMechanism: " << PORT_GetError();
+    PK11_FreeSymKey(key);
+    return SECFailure;
+  }
+
+  crypto_mech_type = PK11_GetPadMechanism(crypto_mech_type);
+
+  *private_key = PK11_UnwrapPrivKey(slot, key, crypto_mech_type, crypto_param,
+                                    &epki->encryptedData, nickname,
+                                    public_value, permanent, sensitive, CKK_EC,
+                                    &usage, 1, wincx);
+
+  if (crypto_param != NULL)
+    SECITEM_ZfreeItem(crypto_param, PR_TRUE);
+
+  PK11_FreeSymKey(key);
+
+  if (!*private_key) {
+    DLOG(ERROR) << "PK11_UnwrapPrivKey: " << PORT_GetError();
+    return SECFailure;
+  }
+
+  return SECSuccess;
+}
diff --git a/crypto/third_party/nss/rsawrapr.c b/crypto/third_party/nss/rsawrapr.c
new file mode 100644
index 0000000..73e498f
--- /dev/null
+++ b/crypto/third_party/nss/rsawrapr.c
@@ -0,0 +1,160 @@
+/*
+ * PKCS#1 encoding and decoding functions.
+ * This file is believed to contain no code licensed from other parties.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "seccomon.h"
+#include "secerr.h"
+#include "sechash.h"
+
+/* Needed for RSA-PSS functions */
+static const unsigned char eightZeros[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+/*
+ * Mask generation function MGF1 as defined in PKCS #1 v2.1 / RFC 3447.
+ */
+static SECStatus
+MGF1(HASH_HashType hashAlg, unsigned char *mask, unsigned int maskLen,
+     const unsigned char *mgfSeed, unsigned int mgfSeedLen)
+{
+    unsigned int digestLen;
+    PRUint32 counter, rounds;
+    unsigned char *tempHash, *temp;
+    const SECHashObject *hash;
+    void *hashContext;
+    unsigned char C[4];
+
+    hash = HASH_GetHashObject(hashAlg);
+    if (hash == NULL)
+        return SECFailure;
+
+    hashContext = (*hash->create)();
+    rounds = (maskLen + hash->length - 1) / hash->length;
+    for (counter = 0; counter < rounds; counter++) {
+        C[0] = (unsigned char)((counter >> 24) & 0xff);
+        C[1] = (unsigned char)((counter >> 16) & 0xff);
+        C[2] = (unsigned char)((counter >> 8) & 0xff);
+        C[3] = (unsigned char)(counter & 0xff);
+
+        /* This could be optimized when the clone functions in
+         * rawhash.c are implemented. */
+        (*hash->begin)(hashContext);
+        (*hash->update)(hashContext, mgfSeed, mgfSeedLen); 
+        (*hash->update)(hashContext, C, sizeof C);
+
+        tempHash = mask + counter * hash->length;
+        if (counter != (rounds-1)) {
+            (*hash->end)(hashContext, tempHash, &digestLen, hash->length);
+        } else { /* we're in the last round and need to cut the hash */
+            temp = (unsigned char *)PORT_Alloc(hash->length);
+            (*hash->end)(hashContext, temp, &digestLen, hash->length);
+            PORT_Memcpy(tempHash, temp, maskLen - counter * hash->length);
+            PORT_Free(temp);
+        }
+    }
+    (*hash->destroy)(hashContext, PR_TRUE);
+
+    return SECSuccess;
+}
+
+/*
+ * Verify a RSA-PSS signature.
+ * Described in RFC 3447, section 9.1.2.
+ * We use mHash instead of M as input.
+ * emBits from the RFC is just modBits - 1, see section 8.1.2.
+ * We only support MGF1 as the MGF.
+ *
+ * NOTE: this code assumes modBits is a multiple of 8.
+ */
+SECStatus
+emsa_pss_verify(const unsigned char *mHash,
+                const unsigned char *em, unsigned int emLen,
+                HASH_HashType hashAlg, HASH_HashType maskHashAlg,
+                unsigned int sLen)
+{
+    const SECHashObject *hash;
+    void *hash_context;
+    unsigned char *db;
+    unsigned char *H_;  /* H' from the RFC */
+    unsigned int i, dbMaskLen;
+    SECStatus rv;
+
+    hash = HASH_GetHashObject(hashAlg);
+    dbMaskLen = emLen - hash->length - 1;
+
+    /* Step 3 + 4 + 6 */
+    if ((emLen < (hash->length + sLen + 2)) ||
+	(em[emLen - 1] != 0xbc) ||
+	((em[0] & 0x80) != 0)) {
+	PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+	return SECFailure;
+    }
+
+    /* Step 7 */
+    db = (unsigned char *)PORT_Alloc(dbMaskLen);
+    if (db == NULL) {
+	PORT_SetError(SEC_ERROR_NO_MEMORY);
+	return SECFailure;
+    }
+    /* &em[dbMaskLen] points to H, used as mgfSeed */
+    MGF1(maskHashAlg, db, dbMaskLen, &em[dbMaskLen], hash->length);
+
+    /* Step 8 */
+    for (i = 0; i < dbMaskLen; i++) {
+	db[i] ^= em[i];
+    }
+
+    /* Step 9 */
+    db[0] &= 0x7f;
+
+    /* Step 10 */
+    for (i = 0; i < (dbMaskLen - sLen - 1); i++) {
+	if (db[i] != 0) {
+	    PORT_Free(db);
+	    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+	    return SECFailure;
+	}
+    }
+    if (db[dbMaskLen - sLen - 1] != 0x01) {
+	PORT_Free(db);
+	PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+	return SECFailure;
+    }
+
+    /* Step 12 + 13 */
+    H_ = (unsigned char *)PORT_Alloc(hash->length);
+    if (H_ == NULL) {
+	PORT_Free(db);
+	PORT_SetError(SEC_ERROR_NO_MEMORY);
+	return SECFailure;
+    }
+    hash_context = (*hash->create)();
+    if (hash_context == NULL) {
+	PORT_Free(db);
+	PORT_Free(H_);
+	PORT_SetError(SEC_ERROR_NO_MEMORY);
+	return SECFailure;
+    }
+    (*hash->begin)(hash_context);
+    (*hash->update)(hash_context, eightZeros, 8);
+    (*hash->update)(hash_context, mHash, hash->length);
+    (*hash->update)(hash_context, &db[dbMaskLen - sLen], sLen);
+    (*hash->end)(hash_context, H_, &i, hash->length);
+    (*hash->destroy)(hash_context, PR_TRUE);
+
+    PORT_Free(db);
+
+    /* Step 14 */
+    if (PORT_Memcmp(H_, &em[dbMaskLen], hash->length) != 0) {
+	PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+	rv = SECFailure;
+    } else {
+	rv = SECSuccess;
+    }
+
+    PORT_Free(H_);
+    return rv;
+}
diff --git a/crypto/third_party/nss/secsign.cc b/crypto/third_party/nss/secsign.cc
new file mode 100644
index 0000000..a788def
--- /dev/null
+++ b/crypto/third_party/nss/secsign.cc
@@ -0,0 +1,132 @@
+/*
+ * Signature stuff.
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Dr Vipul Gupta <vipul.gupta@sun.com>, Sun Microsystems Laboratories
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "crypto/third_party/nss/chromium-nss.h"
+
+#include <vector>
+
+#include <cryptohi.h>
+#include <pk11pub.h>
+#include <secerr.h>
+#include <sechash.h>
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "build/build_config.h"
+
+SECStatus DerSignData(PLArenaPool *arena,
+                      SECItem *result,
+                      SECItem *input,
+                      SECKEYPrivateKey *key,
+                      SECOidTag algo_id) {
+  if (key->keyType != ecKey) {
+    return SEC_DerSignData(arena, result, input->data, input->len, key,
+                           algo_id);
+  }
+
+  // NSS has a private function sec_DecodeSigAlg it uses to figure out the
+  // correct hash from the algorithm id.
+  HASH_HashType hash_type;
+  switch (algo_id) {
+    case SEC_OID_ANSIX962_ECDSA_SHA1_SIGNATURE:
+      hash_type = HASH_AlgSHA1;
+      break;
+#ifdef SHA224_LENGTH
+    case SEC_OID_ANSIX962_ECDSA_SHA224_SIGNATURE:
+      hash_type = HASH_AlgSHA224;
+      break;
+#endif
+    case SEC_OID_ANSIX962_ECDSA_SHA256_SIGNATURE:
+      hash_type = HASH_AlgSHA256;
+      break;
+    case SEC_OID_ANSIX962_ECDSA_SHA384_SIGNATURE:
+      hash_type = HASH_AlgSHA384;
+      break;
+    case SEC_OID_ANSIX962_ECDSA_SHA512_SIGNATURE:
+      hash_type = HASH_AlgSHA512;
+      break;
+    default:
+      PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+      return SECFailure;
+  }
+
+  // Hash the input.
+  std::vector<uint8> hash_data(HASH_ResultLen(hash_type));
+  SECStatus rv = HASH_HashBuf(
+      hash_type, &hash_data[0], input->data, input->len);
+  if (rv != SECSuccess)
+    return rv;
+  SECItem hash = {siBuffer, &hash_data[0], 
+		  static_cast<unsigned int>(hash_data.size())};
+
+  // Compute signature of hash.
+  int signature_len = PK11_SignatureLen(key);
+  std::vector<uint8> signature_data(signature_len);
+  SECItem sig = {siBuffer, &signature_data[0], 
+		 static_cast<unsigned int>(signature_len)};
+  rv = PK11_Sign(key, &sig, &hash);
+  if (rv != SECSuccess)
+    return rv;
+
+  CERTSignedData sd;
+  PORT_Memset(&sd, 0, sizeof(sd));
+  // Fill in tbsCertificate.
+  sd.data.data = (unsigned char*) input->data;
+  sd.data.len = input->len;
+
+  // Fill in signatureAlgorithm.
+  rv = SECOID_SetAlgorithmID(arena, &sd.signatureAlgorithm, algo_id, 0);
+  if (rv != SECSuccess)
+    return rv;
+
+  // Fill in signatureValue.
+  rv = DSAU_EncodeDerSigWithLen(&sd.signature, &sig, sig.len);
+  if (rv != SECSuccess)
+    return rv;
+  sd.signature.len <<=  3;  // Convert to bit string.
+
+  // DER encode the signed data object.
+  void* encode_result = SEC_ASN1EncodeItem(
+      arena, result, &sd, SEC_ASN1_GET(CERT_SignedDataTemplate));
+
+  PORT_Free(sd.signature.data);
+
+  return encode_result ? SECSuccess : SECFailure;
+}
diff --git a/crypto/third_party/nss/sha512.cc b/crypto/third_party/nss/sha512.cc
new file mode 100644
index 0000000..5ef4e50
--- /dev/null
+++ b/crypto/third_party/nss/sha512.cc
@@ -0,0 +1,1391 @@
+/*
+ * sha512.c - implementation of SHA256, SHA384 and SHA512
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+/* $Id: sha512.c,v 1.9 2006/10/13 16:54:04 wtchang%redhat.com Exp $ */
+
+// Prevent manual unrolling in the sha256 code, which reduces the binary code
+// size from ~10k to ~1k.  The performance should be reasonable for our use.
+#define NOUNROLL256 1
+
+#include "crypto/third_party/nss/chromium-prtypes.h"  /* for PRUintXX */
+#if defined(_X86_) || defined(SHA_NO_LONG_LONG)
+#define NOUNROLL512 1
+#undef HAVE_LONG_LONG
+#endif
+#include "crypto/third_party/nss/chromium-blapi.h"
+#include "crypto/third_party/nss/chromium-sha256.h"    /* for struct SHA256ContextStr */
+
+#include <stdlib.h>
+#include <string.h>
+#define PORT_New(type) static_cast<type*>(malloc(sizeof(type)))
+#define PORT_ZFree(ptr, len) do { memset(ptr, 0, len); free(ptr); } while (0)
+#define PORT_Strlen(s) static_cast<unsigned int>(strlen(s))
+#define PORT_Memcpy memcpy
+
+/* ============= Common constants and defines ======================= */
+
+#define W ctx->u.w
+#define B ctx->u.b
+#define H ctx->h
+
+#define SHR(x,n) (x >> n)
+#define SHL(x,n) (x << n)
+#define Ch(x,y,z)  ((x & y) ^ (~x & z))
+#define Maj(x,y,z) ((x & y) ^ (x & z) ^ (y & z))
+
+/* Padding used with all flavors of SHA */
+static const PRUint8 pad[240] = {
+0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+   /* compiler will fill the rest in with zeros */
+};
+
+/* ============= SHA256 implemenmtation ================================== */
+
+/* SHA-256 constants, K256. */
+static const PRUint32 K256[64] = {
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+};
+
+/* SHA-256 initial hash values */
+static const PRUint32 H256[8] = {
+    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
+    0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
+};
+
+#if defined(_MSC_VER) && defined(_X86_)
+#ifndef FORCEINLINE
+#if (_MSC_VER >= 1200)
+#define FORCEINLINE __forceinline
+#else
+#define FORCEINLINE __inline
+#endif
+#endif
+#define FASTCALL __fastcall
+
+static FORCEINLINE PRUint32 FASTCALL
+swap4b(PRUint32 dwd)
+{
+    __asm {
+    	mov   eax,dwd
+	bswap eax
+    }
+}
+
+#define SHA_HTONL(x) swap4b(x)
+#define BYTESWAP4(x)  x = SHA_HTONL(x)
+
+#elif defined(LINUX) && defined(_X86_)
+#undef  __OPTIMIZE__
+#define __OPTIMIZE__ 1
+#undef  __pentium__
+#define __pentium__ 1
+#include <byteswap.h>
+#define SHA_HTONL(x) bswap_32(x)
+#define BYTESWAP4(x)  x = SHA_HTONL(x)
+
+#else /* neither windows nor Linux PC */
+#define SWAP4MASK  0x00FF00FF
+#define SHA_HTONL(x) (t1 = (x), t1 = (t1 << 16) | (t1 >> 16), \
+                      ((t1 & SWAP4MASK) << 8) | ((t1 >> 8) & SWAP4MASK))
+#define BYTESWAP4(x)  x = SHA_HTONL(x)
+#endif
+
+#if defined(_MSC_VER) && defined(_X86_)
+#pragma intrinsic (_lrotr, _lrotl)
+#define ROTR32(x,n) _lrotr(x,n)
+#define ROTL32(x,n) _lrotl(x,n)
+#else
+#define ROTR32(x,n) ((x >> n) | (x << ((8 * sizeof x) - n)))
+#define ROTL32(x,n) ((x << n) | (x >> ((8 * sizeof x) - n)))
+#endif
+
+/* Capitol Sigma and lower case sigma functions */
+#define S0(x) (ROTR32(x, 2) ^ ROTR32(x,13) ^ ROTR32(x,22))
+#define S1(x) (ROTR32(x, 6) ^ ROTR32(x,11) ^ ROTR32(x,25))
+#define s0(x) (t1 = x, ROTR32(t1, 7) ^ ROTR32(t1,18) ^ SHR(t1, 3))
+#define s1(x) (t2 = x, ROTR32(t2,17) ^ ROTR32(t2,19) ^ SHR(t2,10))
+
+SHA256Context *
+SHA256_NewContext(void)
+{
+    SHA256Context *ctx = PORT_New(SHA256Context);
+    return ctx;
+}
+
+void
+SHA256_DestroyContext(SHA256Context *ctx, PRBool freeit)
+{
+    if (freeit) {
+        PORT_ZFree(ctx, sizeof *ctx);
+    }
+}
+
+void
+SHA256_Begin(SHA256Context *ctx)
+{
+    memset(ctx, 0, sizeof *ctx);
+    memcpy(H, H256, sizeof H256);
+}
+
+static void
+SHA256_Compress(SHA256Context *ctx)
+{
+  {
+    register PRUint32 t1, t2;
+
+#if defined(IS_LITTLE_ENDIAN)
+    BYTESWAP4(W[0]);
+    BYTESWAP4(W[1]);
+    BYTESWAP4(W[2]);
+    BYTESWAP4(W[3]);
+    BYTESWAP4(W[4]);
+    BYTESWAP4(W[5]);
+    BYTESWAP4(W[6]);
+    BYTESWAP4(W[7]);
+    BYTESWAP4(W[8]);
+    BYTESWAP4(W[9]);
+    BYTESWAP4(W[10]);
+    BYTESWAP4(W[11]);
+    BYTESWAP4(W[12]);
+    BYTESWAP4(W[13]);
+    BYTESWAP4(W[14]);
+    BYTESWAP4(W[15]);
+#endif
+
+#define INITW(t) W[t] = (s1(W[t-2]) + W[t-7] + s0(W[t-15]) + W[t-16])
+
+    /* prepare the "message schedule"   */
+#ifdef NOUNROLL256
+    {
+	int t;
+	for (t = 16; t < 64; ++t) {
+	    INITW(t);
+	}
+    }
+#else
+    INITW(16);
+    INITW(17);
+    INITW(18);
+    INITW(19);
+
+    INITW(20);
+    INITW(21);
+    INITW(22);
+    INITW(23);
+    INITW(24);
+    INITW(25);
+    INITW(26);
+    INITW(27);
+    INITW(28);
+    INITW(29);
+
+    INITW(30);
+    INITW(31);
+    INITW(32);
+    INITW(33);
+    INITW(34);
+    INITW(35);
+    INITW(36);
+    INITW(37);
+    INITW(38);
+    INITW(39);
+
+    INITW(40);
+    INITW(41);
+    INITW(42);
+    INITW(43);
+    INITW(44);
+    INITW(45);
+    INITW(46);
+    INITW(47);
+    INITW(48);
+    INITW(49);
+
+    INITW(50);
+    INITW(51);
+    INITW(52);
+    INITW(53);
+    INITW(54);
+    INITW(55);
+    INITW(56);
+    INITW(57);
+    INITW(58);
+    INITW(59);
+
+    INITW(60);
+    INITW(61);
+    INITW(62);
+    INITW(63);
+
+#endif
+#undef INITW
+  }
+  {
+    PRUint32 a, b, c, d, e, f, g, h;
+
+    a = H[0];
+    b = H[1];
+    c = H[2];
+    d = H[3];
+    e = H[4];
+    f = H[5];
+    g = H[6];
+    h = H[7];
+
+#define ROUND(n,a,b,c,d,e,f,g,h) \
+    h += S1(e) + Ch(e,f,g) + K256[n] + W[n]; \
+    d += h; \
+    h += S0(a) + Maj(a,b,c);
+
+#ifdef NOUNROLL256
+    {
+	int t;
+	for (t = 0; t < 64; t+= 8) {
+	    ROUND(t+0,a,b,c,d,e,f,g,h)
+	    ROUND(t+1,h,a,b,c,d,e,f,g)
+	    ROUND(t+2,g,h,a,b,c,d,e,f)
+	    ROUND(t+3,f,g,h,a,b,c,d,e)
+	    ROUND(t+4,e,f,g,h,a,b,c,d)
+	    ROUND(t+5,d,e,f,g,h,a,b,c)
+	    ROUND(t+6,c,d,e,f,g,h,a,b)
+	    ROUND(t+7,b,c,d,e,f,g,h,a)
+	}
+    }
+#else
+    ROUND( 0,a,b,c,d,e,f,g,h)
+    ROUND( 1,h,a,b,c,d,e,f,g)
+    ROUND( 2,g,h,a,b,c,d,e,f)
+    ROUND( 3,f,g,h,a,b,c,d,e)
+    ROUND( 4,e,f,g,h,a,b,c,d)
+    ROUND( 5,d,e,f,g,h,a,b,c)
+    ROUND( 6,c,d,e,f,g,h,a,b)
+    ROUND( 7,b,c,d,e,f,g,h,a)
+
+    ROUND( 8,a,b,c,d,e,f,g,h)
+    ROUND( 9,h,a,b,c,d,e,f,g)
+    ROUND(10,g,h,a,b,c,d,e,f)
+    ROUND(11,f,g,h,a,b,c,d,e)
+    ROUND(12,e,f,g,h,a,b,c,d)
+    ROUND(13,d,e,f,g,h,a,b,c)
+    ROUND(14,c,d,e,f,g,h,a,b)
+    ROUND(15,b,c,d,e,f,g,h,a)
+
+    ROUND(16,a,b,c,d,e,f,g,h)
+    ROUND(17,h,a,b,c,d,e,f,g)
+    ROUND(18,g,h,a,b,c,d,e,f)
+    ROUND(19,f,g,h,a,b,c,d,e)
+    ROUND(20,e,f,g,h,a,b,c,d)
+    ROUND(21,d,e,f,g,h,a,b,c)
+    ROUND(22,c,d,e,f,g,h,a,b)
+    ROUND(23,b,c,d,e,f,g,h,a)
+
+    ROUND(24,a,b,c,d,e,f,g,h)
+    ROUND(25,h,a,b,c,d,e,f,g)
+    ROUND(26,g,h,a,b,c,d,e,f)
+    ROUND(27,f,g,h,a,b,c,d,e)
+    ROUND(28,e,f,g,h,a,b,c,d)
+    ROUND(29,d,e,f,g,h,a,b,c)
+    ROUND(30,c,d,e,f,g,h,a,b)
+    ROUND(31,b,c,d,e,f,g,h,a)
+
+    ROUND(32,a,b,c,d,e,f,g,h)
+    ROUND(33,h,a,b,c,d,e,f,g)
+    ROUND(34,g,h,a,b,c,d,e,f)
+    ROUND(35,f,g,h,a,b,c,d,e)
+    ROUND(36,e,f,g,h,a,b,c,d)
+    ROUND(37,d,e,f,g,h,a,b,c)
+    ROUND(38,c,d,e,f,g,h,a,b)
+    ROUND(39,b,c,d,e,f,g,h,a)
+
+    ROUND(40,a,b,c,d,e,f,g,h)
+    ROUND(41,h,a,b,c,d,e,f,g)
+    ROUND(42,g,h,a,b,c,d,e,f)
+    ROUND(43,f,g,h,a,b,c,d,e)
+    ROUND(44,e,f,g,h,a,b,c,d)
+    ROUND(45,d,e,f,g,h,a,b,c)
+    ROUND(46,c,d,e,f,g,h,a,b)
+    ROUND(47,b,c,d,e,f,g,h,a)
+
+    ROUND(48,a,b,c,d,e,f,g,h)
+    ROUND(49,h,a,b,c,d,e,f,g)
+    ROUND(50,g,h,a,b,c,d,e,f)
+    ROUND(51,f,g,h,a,b,c,d,e)
+    ROUND(52,e,f,g,h,a,b,c,d)
+    ROUND(53,d,e,f,g,h,a,b,c)
+    ROUND(54,c,d,e,f,g,h,a,b)
+    ROUND(55,b,c,d,e,f,g,h,a)
+
+    ROUND(56,a,b,c,d,e,f,g,h)
+    ROUND(57,h,a,b,c,d,e,f,g)
+    ROUND(58,g,h,a,b,c,d,e,f)
+    ROUND(59,f,g,h,a,b,c,d,e)
+    ROUND(60,e,f,g,h,a,b,c,d)
+    ROUND(61,d,e,f,g,h,a,b,c)
+    ROUND(62,c,d,e,f,g,h,a,b)
+    ROUND(63,b,c,d,e,f,g,h,a)
+#endif
+
+    H[0] += a;
+    H[1] += b;
+    H[2] += c;
+    H[3] += d;
+    H[4] += e;
+    H[5] += f;
+    H[6] += g;
+    H[7] += h;
+  }
+#undef ROUND
+}
+
+#undef s0
+#undef s1
+#undef S0
+#undef S1
+
+void
+SHA256_Update(SHA256Context *ctx, const unsigned char *input,
+		    unsigned int inputLen)
+{
+    unsigned int inBuf = ctx->sizeLo & 0x3f;
+    if (!inputLen)
+    	return;
+
+    /* Add inputLen into the count of bytes processed, before processing */
+    if ((ctx->sizeLo += inputLen) < inputLen)
+    	ctx->sizeHi++;
+
+    /* if data already in buffer, attemp to fill rest of buffer */
+    if (inBuf) {
+    	unsigned int todo = SHA256_BLOCK_LENGTH - inBuf;
+	if (inputLen < todo)
+	    todo = inputLen;
+	memcpy(B + inBuf, input, todo);
+	input    += todo;
+	inputLen -= todo;
+	if (inBuf + todo == SHA256_BLOCK_LENGTH)
+	    SHA256_Compress(ctx);
+    }
+
+    /* if enough data to fill one or more whole buffers, process them. */
+    while (inputLen >= SHA256_BLOCK_LENGTH) {
+    	memcpy(B, input, SHA256_BLOCK_LENGTH);
+	input    += SHA256_BLOCK_LENGTH;
+	inputLen -= SHA256_BLOCK_LENGTH;
+	SHA256_Compress(ctx);
+    }
+    /* if data left over, fill it into buffer */
+    if (inputLen)
+    	memcpy(B, input, inputLen);
+}
+
+void
+SHA256_End(SHA256Context *ctx, unsigned char *digest,
+           unsigned int *digestLen, unsigned int maxDigestLen)
+{
+    unsigned int inBuf = ctx->sizeLo & 0x3f;
+    unsigned int padLen = (inBuf < 56) ? (56 - inBuf) : (56 + 64 - inBuf);
+    PRUint32 hi, lo;
+#ifdef SWAP4MASK
+    PRUint32 t1;
+#endif
+
+    hi = (ctx->sizeHi << 3) | (ctx->sizeLo >> 29);
+    lo = (ctx->sizeLo << 3);
+
+    SHA256_Update(ctx, pad, padLen);
+
+#if defined(IS_LITTLE_ENDIAN)
+    W[14] = SHA_HTONL(hi);
+    W[15] = SHA_HTONL(lo);
+#else
+    W[14] = hi;
+    W[15] = lo;
+#endif
+    SHA256_Compress(ctx);
+
+    /* now output the answer */
+#if defined(IS_LITTLE_ENDIAN)
+    BYTESWAP4(H[0]);
+    BYTESWAP4(H[1]);
+    BYTESWAP4(H[2]);
+    BYTESWAP4(H[3]);
+    BYTESWAP4(H[4]);
+    BYTESWAP4(H[5]);
+    BYTESWAP4(H[6]);
+    BYTESWAP4(H[7]);
+#endif
+    padLen = PR_MIN(SHA256_LENGTH, maxDigestLen);
+    memcpy(digest, H, padLen);
+    if (digestLen)
+	*digestLen = padLen;
+}
+
+/* Comment out unused code, mostly the SHA384 and SHA512 implementations. */
+#if 0
+SECStatus
+SHA256_HashBuf(unsigned char *dest, const unsigned char *src,
+               unsigned int src_length)
+{
+    SHA256Context ctx;
+    unsigned int outLen;
+
+    SHA256_Begin(&ctx);
+    SHA256_Update(&ctx, src, src_length);
+    SHA256_End(&ctx, dest, &outLen, SHA256_LENGTH);
+
+    return SECSuccess;
+}
+
+
+SECStatus
+SHA256_Hash(unsigned char *dest, const char *src)
+{
+    return SHA256_HashBuf(dest, (const unsigned char *)src, PORT_Strlen(src));
+}
+
+
+void SHA256_TraceState(SHA256Context *ctx) { }
+
+unsigned int
+SHA256_FlattenSize(SHA256Context *ctx)
+{
+    return sizeof *ctx;
+}
+
+SECStatus
+SHA256_Flatten(SHA256Context *ctx,unsigned char *space)
+{
+    PORT_Memcpy(space, ctx, sizeof *ctx);
+    return SECSuccess;
+}
+
+SHA256Context *
+SHA256_Resurrect(unsigned char *space, void *arg)
+{
+    SHA256Context *ctx = SHA256_NewContext();
+    if (ctx)
+	PORT_Memcpy(ctx, space, sizeof *ctx);
+    return ctx;
+}
+
+void SHA256_Clone(SHA256Context *dest, SHA256Context *src)
+{
+    memcpy(dest, src, sizeof *dest);
+}
+
+
+/* ======= SHA512 and SHA384 common constants and defines ================= */
+
+/* common #defines for SHA512 and SHA384 */
+#if defined(HAVE_LONG_LONG)
+#define ROTR64(x,n) ((x >> n) | (x << (64 - n)))
+#define ROTL64(x,n) ((x << n) | (x >> (64 - n)))
+
+#define S0(x) (ROTR64(x,28) ^ ROTR64(x,34) ^ ROTR64(x,39))
+#define S1(x) (ROTR64(x,14) ^ ROTR64(x,18) ^ ROTR64(x,41))
+#define s0(x) (t1 = x, ROTR64(t1, 1) ^ ROTR64(t1, 8) ^ SHR(t1,7))
+#define s1(x) (t2 = x, ROTR64(t2,19) ^ ROTR64(t2,61) ^ SHR(t2,6))
+
+#if PR_BYTES_PER_LONG == 8
+#define ULLC(hi,lo) 0x ## hi ## lo ## UL
+#elif defined(_MSC_VER)
+#define ULLC(hi,lo) 0x ## hi ## lo ## ui64
+#else
+#define ULLC(hi,lo) 0x ## hi ## lo ## ULL
+#endif
+
+#define SHA_MASK16 ULLC(0000FFFF,0000FFFF)
+#define SHA_MASK8  ULLC(00FF00FF,00FF00FF)
+#define SHA_HTONLL(x) (t1 = x, \
+  t1 = ((t1 & SHA_MASK8 ) <<  8) | ((t1 >>  8) & SHA_MASK8 ), \
+  t1 = ((t1 & SHA_MASK16) << 16) | ((t1 >> 16) & SHA_MASK16), \
+  (t1 >> 32) | (t1 << 32))
+#define BYTESWAP8(x)  x = SHA_HTONLL(x)
+
+#else /* no long long */
+
+#if defined(IS_LITTLE_ENDIAN)
+#define ULLC(hi,lo) { 0x ## lo ## U, 0x ## hi ## U }
+#else
+#define ULLC(hi,lo) { 0x ## hi ## U, 0x ## lo ## U }
+#endif
+
+#define SHA_HTONLL(x) ( BYTESWAP4(x.lo), BYTESWAP4(x.hi), \
+   x.hi ^= x.lo ^= x.hi ^= x.lo, x)
+#define BYTESWAP8(x)  do { PRUint32 tmp; BYTESWAP4(x.lo); BYTESWAP4(x.hi); \
+   tmp = x.lo; x.lo = x.hi; x.hi = tmp; } while (0)
+#endif
+
+/* SHA-384 and SHA-512 constants, K512. */
+static const PRUint64 K512[80] = {
+#if PR_BYTES_PER_LONG == 8
+     0x428a2f98d728ae22UL ,  0x7137449123ef65cdUL ,
+     0xb5c0fbcfec4d3b2fUL ,  0xe9b5dba58189dbbcUL ,
+     0x3956c25bf348b538UL ,  0x59f111f1b605d019UL ,
+     0x923f82a4af194f9bUL ,  0xab1c5ed5da6d8118UL ,
+     0xd807aa98a3030242UL ,  0x12835b0145706fbeUL ,
+     0x243185be4ee4b28cUL ,  0x550c7dc3d5ffb4e2UL ,
+     0x72be5d74f27b896fUL ,  0x80deb1fe3b1696b1UL ,
+     0x9bdc06a725c71235UL ,  0xc19bf174cf692694UL ,
+     0xe49b69c19ef14ad2UL ,  0xefbe4786384f25e3UL ,
+     0x0fc19dc68b8cd5b5UL ,  0x240ca1cc77ac9c65UL ,
+     0x2de92c6f592b0275UL ,  0x4a7484aa6ea6e483UL ,
+     0x5cb0a9dcbd41fbd4UL ,  0x76f988da831153b5UL ,
+     0x983e5152ee66dfabUL ,  0xa831c66d2db43210UL ,
+     0xb00327c898fb213fUL ,  0xbf597fc7beef0ee4UL ,
+     0xc6e00bf33da88fc2UL ,  0xd5a79147930aa725UL ,
+     0x06ca6351e003826fUL ,  0x142929670a0e6e70UL ,
+     0x27b70a8546d22ffcUL ,  0x2e1b21385c26c926UL ,
+     0x4d2c6dfc5ac42aedUL ,  0x53380d139d95b3dfUL ,
+     0x650a73548baf63deUL ,  0x766a0abb3c77b2a8UL ,
+     0x81c2c92e47edaee6UL ,  0x92722c851482353bUL ,
+     0xa2bfe8a14cf10364UL ,  0xa81a664bbc423001UL ,
+     0xc24b8b70d0f89791UL ,  0xc76c51a30654be30UL ,
+     0xd192e819d6ef5218UL ,  0xd69906245565a910UL ,
+     0xf40e35855771202aUL ,  0x106aa07032bbd1b8UL ,
+     0x19a4c116b8d2d0c8UL ,  0x1e376c085141ab53UL ,
+     0x2748774cdf8eeb99UL ,  0x34b0bcb5e19b48a8UL ,
+     0x391c0cb3c5c95a63UL ,  0x4ed8aa4ae3418acbUL ,
+     0x5b9cca4f7763e373UL ,  0x682e6ff3d6b2b8a3UL ,
+     0x748f82ee5defb2fcUL ,  0x78a5636f43172f60UL ,
+     0x84c87814a1f0ab72UL ,  0x8cc702081a6439ecUL ,
+     0x90befffa23631e28UL ,  0xa4506cebde82bde9UL ,
+     0xbef9a3f7b2c67915UL ,  0xc67178f2e372532bUL ,
+     0xca273eceea26619cUL ,  0xd186b8c721c0c207UL ,
+     0xeada7dd6cde0eb1eUL ,  0xf57d4f7fee6ed178UL ,
+     0x06f067aa72176fbaUL ,  0x0a637dc5a2c898a6UL ,
+     0x113f9804bef90daeUL ,  0x1b710b35131c471bUL ,
+     0x28db77f523047d84UL ,  0x32caab7b40c72493UL ,
+     0x3c9ebe0a15c9bebcUL ,  0x431d67c49c100d4cUL ,
+     0x4cc5d4becb3e42b6UL ,  0x597f299cfc657e2aUL ,
+     0x5fcb6fab3ad6faecUL ,  0x6c44198c4a475817UL
+#else
+    ULLC(428a2f98,d728ae22), ULLC(71374491,23ef65cd),
+    ULLC(b5c0fbcf,ec4d3b2f), ULLC(e9b5dba5,8189dbbc),
+    ULLC(3956c25b,f348b538), ULLC(59f111f1,b605d019),
+    ULLC(923f82a4,af194f9b), ULLC(ab1c5ed5,da6d8118),
+    ULLC(d807aa98,a3030242), ULLC(12835b01,45706fbe),
+    ULLC(243185be,4ee4b28c), ULLC(550c7dc3,d5ffb4e2),
+    ULLC(72be5d74,f27b896f), ULLC(80deb1fe,3b1696b1),
+    ULLC(9bdc06a7,25c71235), ULLC(c19bf174,cf692694),
+    ULLC(e49b69c1,9ef14ad2), ULLC(efbe4786,384f25e3),
+    ULLC(0fc19dc6,8b8cd5b5), ULLC(240ca1cc,77ac9c65),
+    ULLC(2de92c6f,592b0275), ULLC(4a7484aa,6ea6e483),
+    ULLC(5cb0a9dc,bd41fbd4), ULLC(76f988da,831153b5),
+    ULLC(983e5152,ee66dfab), ULLC(a831c66d,2db43210),
+    ULLC(b00327c8,98fb213f), ULLC(bf597fc7,beef0ee4),
+    ULLC(c6e00bf3,3da88fc2), ULLC(d5a79147,930aa725),
+    ULLC(06ca6351,e003826f), ULLC(14292967,0a0e6e70),
+    ULLC(27b70a85,46d22ffc), ULLC(2e1b2138,5c26c926),
+    ULLC(4d2c6dfc,5ac42aed), ULLC(53380d13,9d95b3df),
+    ULLC(650a7354,8baf63de), ULLC(766a0abb,3c77b2a8),
+    ULLC(81c2c92e,47edaee6), ULLC(92722c85,1482353b),
+    ULLC(a2bfe8a1,4cf10364), ULLC(a81a664b,bc423001),
+    ULLC(c24b8b70,d0f89791), ULLC(c76c51a3,0654be30),
+    ULLC(d192e819,d6ef5218), ULLC(d6990624,5565a910),
+    ULLC(f40e3585,5771202a), ULLC(106aa070,32bbd1b8),
+    ULLC(19a4c116,b8d2d0c8), ULLC(1e376c08,5141ab53),
+    ULLC(2748774c,df8eeb99), ULLC(34b0bcb5,e19b48a8),
+    ULLC(391c0cb3,c5c95a63), ULLC(4ed8aa4a,e3418acb),
+    ULLC(5b9cca4f,7763e373), ULLC(682e6ff3,d6b2b8a3),
+    ULLC(748f82ee,5defb2fc), ULLC(78a5636f,43172f60),
+    ULLC(84c87814,a1f0ab72), ULLC(8cc70208,1a6439ec),
+    ULLC(90befffa,23631e28), ULLC(a4506ceb,de82bde9),
+    ULLC(bef9a3f7,b2c67915), ULLC(c67178f2,e372532b),
+    ULLC(ca273ece,ea26619c), ULLC(d186b8c7,21c0c207),
+    ULLC(eada7dd6,cde0eb1e), ULLC(f57d4f7f,ee6ed178),
+    ULLC(06f067aa,72176fba), ULLC(0a637dc5,a2c898a6),
+    ULLC(113f9804,bef90dae), ULLC(1b710b35,131c471b),
+    ULLC(28db77f5,23047d84), ULLC(32caab7b,40c72493),
+    ULLC(3c9ebe0a,15c9bebc), ULLC(431d67c4,9c100d4c),
+    ULLC(4cc5d4be,cb3e42b6), ULLC(597f299c,fc657e2a),
+    ULLC(5fcb6fab,3ad6faec), ULLC(6c44198c,4a475817)
+#endif
+};
+
+struct SHA512ContextStr {
+    union {
+	PRUint64 w[80];	    /* message schedule, input buffer, plus 64 words */
+	PRUint32 l[160];
+	PRUint8  b[640];
+    } u;
+    PRUint64 h[8];	    /* 8 state variables */
+    PRUint64 sizeLo;	    /* 64-bit count of hashed bytes. */
+};
+
+/* =========== SHA512 implementation ===================================== */
+
+/* SHA-512 initial hash values */
+static const PRUint64 H512[8] = {
+#if PR_BYTES_PER_LONG == 8
+     0x6a09e667f3bcc908UL ,  0xbb67ae8584caa73bUL ,
+     0x3c6ef372fe94f82bUL ,  0xa54ff53a5f1d36f1UL ,
+     0x510e527fade682d1UL ,  0x9b05688c2b3e6c1fUL ,
+     0x1f83d9abfb41bd6bUL ,  0x5be0cd19137e2179UL
+#else
+    ULLC(6a09e667,f3bcc908), ULLC(bb67ae85,84caa73b),
+    ULLC(3c6ef372,fe94f82b), ULLC(a54ff53a,5f1d36f1),
+    ULLC(510e527f,ade682d1), ULLC(9b05688c,2b3e6c1f),
+    ULLC(1f83d9ab,fb41bd6b), ULLC(5be0cd19,137e2179)
+#endif
+};
+
+
+SHA512Context *
+SHA512_NewContext(void)
+{
+    SHA512Context *ctx = PORT_New(SHA512Context);
+    return ctx;
+}
+
+void
+SHA512_DestroyContext(SHA512Context *ctx, PRBool freeit)
+{
+    if (freeit) {
+        PORT_ZFree(ctx, sizeof *ctx);
+    }
+}
+
+void
+SHA512_Begin(SHA512Context *ctx)
+{
+    memset(ctx, 0, sizeof *ctx);
+    memcpy(H, H512, sizeof H512);
+}
+
+#if defined(SHA512_TRACE)
+#if defined(HAVE_LONG_LONG)
+#define DUMP(n,a,d,e,h) printf(" t = %2d, %s = %016lx, %s = %016lx\n", \
+			       n, #e, d, #a, h);
+#else
+#define DUMP(n,a,d,e,h) printf(" t = %2d, %s = %08x%08x, %s = %08x%08x\n", \
+			       n, #e, d.hi, d.lo, #a, h.hi, h.lo);
+#endif
+#else
+#define DUMP(n,a,d,e,h)
+#endif
+
+#if defined(HAVE_LONG_LONG)
+
+#define ADDTO(x,y) y += x
+
+#define INITW(t) W[t] = (s1(W[t-2]) + W[t-7] + s0(W[t-15]) + W[t-16])
+
+#define ROUND(n,a,b,c,d,e,f,g,h) \
+    h += S1(e) + Ch(e,f,g) + K512[n] + W[n]; \
+    d += h; \
+    h += S0(a) + Maj(a,b,c); \
+    DUMP(n,a,d,e,h)
+
+#else /* use only 32-bit variables, and don't unroll loops */
+
+#undef  NOUNROLL512
+#define NOUNROLL512 1
+
+#define ADDTO(x,y) y.lo += x.lo; y.hi += x.hi + (x.lo > y.lo)
+
+#define ROTR64a(x,n,lo,hi) (x.lo >> n | x.hi << (32-n))
+#define ROTR64A(x,n,lo,hi) (x.lo << (64-n) | x.hi >> (n-32))
+#define  SHR64a(x,n,lo,hi) (x.lo >> n | x.hi << (32-n))
+
+/* Capitol Sigma and lower case sigma functions */
+#define s0lo(x) (ROTR64a(x,1,lo,hi) ^ ROTR64a(x,8,lo,hi) ^ SHR64a(x,7,lo,hi))
+#define s0hi(x) (ROTR64a(x,1,hi,lo) ^ ROTR64a(x,8,hi,lo) ^ (x.hi >> 7))
+
+#define s1lo(x) (ROTR64a(x,19,lo,hi) ^ ROTR64A(x,61,lo,hi) ^ SHR64a(x,6,lo,hi))
+#define s1hi(x) (ROTR64a(x,19,hi,lo) ^ ROTR64A(x,61,hi,lo) ^ (x.hi >> 6))
+
+#define S0lo(x)(ROTR64a(x,28,lo,hi) ^ ROTR64A(x,34,lo,hi) ^ ROTR64A(x,39,lo,hi))
+#define S0hi(x)(ROTR64a(x,28,hi,lo) ^ ROTR64A(x,34,hi,lo) ^ ROTR64A(x,39,hi,lo))
+
+#define S1lo(x)(ROTR64a(x,14,lo,hi) ^ ROTR64a(x,18,lo,hi) ^ ROTR64A(x,41,lo,hi))
+#define S1hi(x)(ROTR64a(x,14,hi,lo) ^ ROTR64a(x,18,hi,lo) ^ ROTR64A(x,41,hi,lo))
+
+/* 32-bit versions of Ch and Maj */
+#define Chxx(x,y,z,lo) ((x.lo & y.lo) ^ (~x.lo & z.lo))
+#define Majx(x,y,z,lo) ((x.lo & y.lo) ^ (x.lo & z.lo) ^ (y.lo & z.lo))
+
+#define INITW(t) \
+    do { \
+	PRUint32 lo, tm; \
+	PRUint32 cy = 0; \
+	lo = s1lo(W[t-2]); \
+	lo += (tm = W[t-7].lo);     if (lo < tm) cy++; \
+	lo += (tm = s0lo(W[t-15])); if (lo < tm) cy++; \
+	lo += (tm = W[t-16].lo);    if (lo < tm) cy++; \
+	W[t].lo = lo; \
+	W[t].hi = cy + s1hi(W[t-2]) + W[t-7].hi + s0hi(W[t-15]) + W[t-16].hi; \
+    } while (0)
+
+#define ROUND(n,a,b,c,d,e,f,g,h) \
+    { \
+	PRUint32 lo, tm, cy; \
+	lo  = S1lo(e); \
+	lo += (tm = Chxx(e,f,g,lo));    cy = (lo < tm); \
+	lo += (tm = K512[n].lo);	if (lo < tm) cy++; \
+	lo += (tm =    W[n].lo);	if (lo < tm) cy++; \
+	h.lo += lo;			if (h.lo < lo) cy++; \
+	h.hi += cy + S1hi(e) + Chxx(e,f,g,hi) + K512[n].hi + W[n].hi; \
+	d.lo += h.lo; \
+	d.hi += h.hi + (d.lo < h.lo); \
+	lo  = S0lo(a);  \
+	lo += (tm = Majx(a,b,c,lo));	cy = (lo < tm); \
+	h.lo += lo;			if (h.lo < lo) cy++; \
+	h.hi += cy + S0hi(a) + Majx(a,b,c,hi); \
+	DUMP(n,a,d,e,h) \
+    }
+#endif
+
+static void
+SHA512_Compress(SHA512Context *ctx)
+{
+#if defined(IS_LITTLE_ENDIAN)
+  {
+#if defined(HAVE_LONG_LONG)
+    PRUint64 t1;
+#else
+    PRUint32 t1;
+#endif
+    BYTESWAP8(W[0]);
+    BYTESWAP8(W[1]);
+    BYTESWAP8(W[2]);
+    BYTESWAP8(W[3]);
+    BYTESWAP8(W[4]);
+    BYTESWAP8(W[5]);
+    BYTESWAP8(W[6]);
+    BYTESWAP8(W[7]);
+    BYTESWAP8(W[8]);
+    BYTESWAP8(W[9]);
+    BYTESWAP8(W[10]);
+    BYTESWAP8(W[11]);
+    BYTESWAP8(W[12]);
+    BYTESWAP8(W[13]);
+    BYTESWAP8(W[14]);
+    BYTESWAP8(W[15]);
+  }
+#endif
+
+  {
+    PRUint64 t1, t2;
+#ifdef NOUNROLL512
+    {
+	/* prepare the "message schedule"   */
+	int t;
+	for (t = 16; t < 80; ++t) {
+	    INITW(t);
+	}
+    }
+#else
+    INITW(16);
+    INITW(17);
+    INITW(18);
+    INITW(19);
+
+    INITW(20);
+    INITW(21);
+    INITW(22);
+    INITW(23);
+    INITW(24);
+    INITW(25);
+    INITW(26);
+    INITW(27);
+    INITW(28);
+    INITW(29);
+
+    INITW(30);
+    INITW(31);
+    INITW(32);
+    INITW(33);
+    INITW(34);
+    INITW(35);
+    INITW(36);
+    INITW(37);
+    INITW(38);
+    INITW(39);
+
+    INITW(40);
+    INITW(41);
+    INITW(42);
+    INITW(43);
+    INITW(44);
+    INITW(45);
+    INITW(46);
+    INITW(47);
+    INITW(48);
+    INITW(49);
+
+    INITW(50);
+    INITW(51);
+    INITW(52);
+    INITW(53);
+    INITW(54);
+    INITW(55);
+    INITW(56);
+    INITW(57);
+    INITW(58);
+    INITW(59);
+
+    INITW(60);
+    INITW(61);
+    INITW(62);
+    INITW(63);
+    INITW(64);
+    INITW(65);
+    INITW(66);
+    INITW(67);
+    INITW(68);
+    INITW(69);
+
+    INITW(70);
+    INITW(71);
+    INITW(72);
+    INITW(73);
+    INITW(74);
+    INITW(75);
+    INITW(76);
+    INITW(77);
+    INITW(78);
+    INITW(79);
+#endif
+  }
+#ifdef SHA512_TRACE
+  {
+    int i;
+    for (i = 0; i < 80; ++i) {
+#ifdef HAVE_LONG_LONG
+	printf("W[%2d] = %016lx\n", i, W[i]);
+#else
+	printf("W[%2d] = %08x%08x\n", i, W[i].hi, W[i].lo);
+#endif
+    }
+  }
+#endif
+  {
+    PRUint64 a, b, c, d, e, f, g, h;
+
+    a = H[0];
+    b = H[1];
+    c = H[2];
+    d = H[3];
+    e = H[4];
+    f = H[5];
+    g = H[6];
+    h = H[7];
+
+#ifdef NOUNROLL512
+    {
+	int t;
+	for (t = 0; t < 80; t+= 8) {
+	    ROUND(t+0,a,b,c,d,e,f,g,h)
+	    ROUND(t+1,h,a,b,c,d,e,f,g)
+	    ROUND(t+2,g,h,a,b,c,d,e,f)
+	    ROUND(t+3,f,g,h,a,b,c,d,e)
+	    ROUND(t+4,e,f,g,h,a,b,c,d)
+	    ROUND(t+5,d,e,f,g,h,a,b,c)
+	    ROUND(t+6,c,d,e,f,g,h,a,b)
+	    ROUND(t+7,b,c,d,e,f,g,h,a)
+	}
+    }
+#else
+    ROUND( 0,a,b,c,d,e,f,g,h)
+    ROUND( 1,h,a,b,c,d,e,f,g)
+    ROUND( 2,g,h,a,b,c,d,e,f)
+    ROUND( 3,f,g,h,a,b,c,d,e)
+    ROUND( 4,e,f,g,h,a,b,c,d)
+    ROUND( 5,d,e,f,g,h,a,b,c)
+    ROUND( 6,c,d,e,f,g,h,a,b)
+    ROUND( 7,b,c,d,e,f,g,h,a)
+
+    ROUND( 8,a,b,c,d,e,f,g,h)
+    ROUND( 9,h,a,b,c,d,e,f,g)
+    ROUND(10,g,h,a,b,c,d,e,f)
+    ROUND(11,f,g,h,a,b,c,d,e)
+    ROUND(12,e,f,g,h,a,b,c,d)
+    ROUND(13,d,e,f,g,h,a,b,c)
+    ROUND(14,c,d,e,f,g,h,a,b)
+    ROUND(15,b,c,d,e,f,g,h,a)
+
+    ROUND(16,a,b,c,d,e,f,g,h)
+    ROUND(17,h,a,b,c,d,e,f,g)
+    ROUND(18,g,h,a,b,c,d,e,f)
+    ROUND(19,f,g,h,a,b,c,d,e)
+    ROUND(20,e,f,g,h,a,b,c,d)
+    ROUND(21,d,e,f,g,h,a,b,c)
+    ROUND(22,c,d,e,f,g,h,a,b)
+    ROUND(23,b,c,d,e,f,g,h,a)
+
+    ROUND(24,a,b,c,d,e,f,g,h)
+    ROUND(25,h,a,b,c,d,e,f,g)
+    ROUND(26,g,h,a,b,c,d,e,f)
+    ROUND(27,f,g,h,a,b,c,d,e)
+    ROUND(28,e,f,g,h,a,b,c,d)
+    ROUND(29,d,e,f,g,h,a,b,c)
+    ROUND(30,c,d,e,f,g,h,a,b)
+    ROUND(31,b,c,d,e,f,g,h,a)
+
+    ROUND(32,a,b,c,d,e,f,g,h)
+    ROUND(33,h,a,b,c,d,e,f,g)
+    ROUND(34,g,h,a,b,c,d,e,f)
+    ROUND(35,f,g,h,a,b,c,d,e)
+    ROUND(36,e,f,g,h,a,b,c,d)
+    ROUND(37,d,e,f,g,h,a,b,c)
+    ROUND(38,c,d,e,f,g,h,a,b)
+    ROUND(39,b,c,d,e,f,g,h,a)
+
+    ROUND(40,a,b,c,d,e,f,g,h)
+    ROUND(41,h,a,b,c,d,e,f,g)
+    ROUND(42,g,h,a,b,c,d,e,f)
+    ROUND(43,f,g,h,a,b,c,d,e)
+    ROUND(44,e,f,g,h,a,b,c,d)
+    ROUND(45,d,e,f,g,h,a,b,c)
+    ROUND(46,c,d,e,f,g,h,a,b)
+    ROUND(47,b,c,d,e,f,g,h,a)
+
+    ROUND(48,a,b,c,d,e,f,g,h)
+    ROUND(49,h,a,b,c,d,e,f,g)
+    ROUND(50,g,h,a,b,c,d,e,f)
+    ROUND(51,f,g,h,a,b,c,d,e)
+    ROUND(52,e,f,g,h,a,b,c,d)
+    ROUND(53,d,e,f,g,h,a,b,c)
+    ROUND(54,c,d,e,f,g,h,a,b)
+    ROUND(55,b,c,d,e,f,g,h,a)
+
+    ROUND(56,a,b,c,d,e,f,g,h)
+    ROUND(57,h,a,b,c,d,e,f,g)
+    ROUND(58,g,h,a,b,c,d,e,f)
+    ROUND(59,f,g,h,a,b,c,d,e)
+    ROUND(60,e,f,g,h,a,b,c,d)
+    ROUND(61,d,e,f,g,h,a,b,c)
+    ROUND(62,c,d,e,f,g,h,a,b)
+    ROUND(63,b,c,d,e,f,g,h,a)
+
+    ROUND(64,a,b,c,d,e,f,g,h)
+    ROUND(65,h,a,b,c,d,e,f,g)
+    ROUND(66,g,h,a,b,c,d,e,f)
+    ROUND(67,f,g,h,a,b,c,d,e)
+    ROUND(68,e,f,g,h,a,b,c,d)
+    ROUND(69,d,e,f,g,h,a,b,c)
+    ROUND(70,c,d,e,f,g,h,a,b)
+    ROUND(71,b,c,d,e,f,g,h,a)
+
+    ROUND(72,a,b,c,d,e,f,g,h)
+    ROUND(73,h,a,b,c,d,e,f,g)
+    ROUND(74,g,h,a,b,c,d,e,f)
+    ROUND(75,f,g,h,a,b,c,d,e)
+    ROUND(76,e,f,g,h,a,b,c,d)
+    ROUND(77,d,e,f,g,h,a,b,c)
+    ROUND(78,c,d,e,f,g,h,a,b)
+    ROUND(79,b,c,d,e,f,g,h,a)
+#endif
+
+    ADDTO(a,H[0]);
+    ADDTO(b,H[1]);
+    ADDTO(c,H[2]);
+    ADDTO(d,H[3]);
+    ADDTO(e,H[4]);
+    ADDTO(f,H[5]);
+    ADDTO(g,H[6]);
+    ADDTO(h,H[7]);
+  }
+}
+
+void
+SHA512_Update(SHA512Context *ctx, const unsigned char *input,
+              unsigned int inputLen)
+{
+    unsigned int inBuf;
+    if (!inputLen)
+    	return;
+
+#if defined(HAVE_LONG_LONG)
+    inBuf = (unsigned int)ctx->sizeLo & 0x7f;
+    /* Add inputLen into the count of bytes processed, before processing */
+    ctx->sizeLo += inputLen;
+#else
+    inBuf = (unsigned int)ctx->sizeLo.lo & 0x7f;
+    ctx->sizeLo.lo += inputLen;
+    if (ctx->sizeLo.lo < inputLen) ctx->sizeLo.hi++;
+#endif
+
+    /* if data already in buffer, attemp to fill rest of buffer */
+    if (inBuf) {
+    	unsigned int todo = SHA512_BLOCK_LENGTH - inBuf;
+	if (inputLen < todo)
+	    todo = inputLen;
+	memcpy(B + inBuf, input, todo);
+	input    += todo;
+	inputLen -= todo;
+	if (inBuf + todo == SHA512_BLOCK_LENGTH)
+	    SHA512_Compress(ctx);
+    }
+
+    /* if enough data to fill one or more whole buffers, process them. */
+    while (inputLen >= SHA512_BLOCK_LENGTH) {
+    	memcpy(B, input, SHA512_BLOCK_LENGTH);
+	input    += SHA512_BLOCK_LENGTH;
+	inputLen -= SHA512_BLOCK_LENGTH;
+	SHA512_Compress(ctx);
+    }
+    /* if data left over, fill it into buffer */
+    if (inputLen)
+    	memcpy(B, input, inputLen);
+}
+
+void
+SHA512_End(SHA512Context *ctx, unsigned char *digest,
+           unsigned int *digestLen, unsigned int maxDigestLen)
+{
+#if defined(HAVE_LONG_LONG)
+    unsigned int inBuf  = (unsigned int)ctx->sizeLo & 0x7f;
+    unsigned int padLen = (inBuf < 112) ? (112 - inBuf) : (112 + 128 - inBuf);
+    PRUint64 lo, t1;
+    lo = (ctx->sizeLo << 3);
+#else
+    unsigned int inBuf  = (unsigned int)ctx->sizeLo.lo & 0x7f;
+    unsigned int padLen = (inBuf < 112) ? (112 - inBuf) : (112 + 128 - inBuf);
+    PRUint64 lo = ctx->sizeLo;
+    PRUint32 t1;
+    lo.lo <<= 3;
+#endif
+
+    SHA512_Update(ctx, pad, padLen);
+
+#if defined(HAVE_LONG_LONG)
+    W[14] = 0;
+#else
+    W[14].lo = 0;
+    W[14].hi = 0;
+#endif
+
+    W[15] = lo;
+#if defined(IS_LITTLE_ENDIAN)
+    BYTESWAP8(W[15]);
+#endif
+    SHA512_Compress(ctx);
+
+    /* now output the answer */
+#if defined(IS_LITTLE_ENDIAN)
+    BYTESWAP8(H[0]);
+    BYTESWAP8(H[1]);
+    BYTESWAP8(H[2]);
+    BYTESWAP8(H[3]);
+    BYTESWAP8(H[4]);
+    BYTESWAP8(H[5]);
+    BYTESWAP8(H[6]);
+    BYTESWAP8(H[7]);
+#endif
+    padLen = PR_MIN(SHA512_LENGTH, maxDigestLen);
+    memcpy(digest, H, padLen);
+    if (digestLen)
+	*digestLen = padLen;
+}
+
+SECStatus
+SHA512_HashBuf(unsigned char *dest, const unsigned char *src,
+               unsigned int src_length)
+{
+    SHA512Context ctx;
+    unsigned int outLen;
+
+    SHA512_Begin(&ctx);
+    SHA512_Update(&ctx, src, src_length);
+    SHA512_End(&ctx, dest, &outLen, SHA512_LENGTH);
+
+    return SECSuccess;
+}
+
+
+SECStatus
+SHA512_Hash(unsigned char *dest, const char *src)
+{
+    return SHA512_HashBuf(dest, (const unsigned char *)src, PORT_Strlen(src));
+}
+
+
+void SHA512_TraceState(SHA512Context *ctx) { }
+
+unsigned int
+SHA512_FlattenSize(SHA512Context *ctx)
+{
+    return sizeof *ctx;
+}
+
+SECStatus
+SHA512_Flatten(SHA512Context *ctx,unsigned char *space)
+{
+    PORT_Memcpy(space, ctx, sizeof *ctx);
+    return SECSuccess;
+}
+
+SHA512Context *
+SHA512_Resurrect(unsigned char *space, void *arg)
+{
+    SHA512Context *ctx = SHA512_NewContext();
+    if (ctx)
+	PORT_Memcpy(ctx, space, sizeof *ctx);
+    return ctx;
+}
+
+void SHA512_Clone(SHA512Context *dest, SHA512Context *src)
+{
+    memcpy(dest, src, sizeof *dest);
+}
+
+/* ======================================================================= */
+/* SHA384 uses a SHA512Context as the real context.
+** The only differences between SHA384 an SHA512 are:
+** a) the intialization values for the context, and
+** b) the number of bytes of data produced as output.
+*/
+
+/* SHA-384 initial hash values */
+static const PRUint64 H384[8] = {
+#if PR_BYTES_PER_LONG == 8
+     0xcbbb9d5dc1059ed8UL ,  0x629a292a367cd507UL ,
+     0x9159015a3070dd17UL ,  0x152fecd8f70e5939UL ,
+     0x67332667ffc00b31UL ,  0x8eb44a8768581511UL ,
+     0xdb0c2e0d64f98fa7UL ,  0x47b5481dbefa4fa4UL
+#else
+    ULLC(cbbb9d5d,c1059ed8), ULLC(629a292a,367cd507),
+    ULLC(9159015a,3070dd17), ULLC(152fecd8,f70e5939),
+    ULLC(67332667,ffc00b31), ULLC(8eb44a87,68581511),
+    ULLC(db0c2e0d,64f98fa7), ULLC(47b5481d,befa4fa4)
+#endif
+};
+
+SHA384Context *
+SHA384_NewContext(void)
+{
+    return SHA512_NewContext();
+}
+
+void
+SHA384_DestroyContext(SHA384Context *ctx, PRBool freeit)
+{
+    SHA512_DestroyContext(ctx, freeit);
+}
+
+void
+SHA384_Begin(SHA384Context *ctx)
+{
+    memset(ctx, 0, sizeof *ctx);
+    memcpy(H, H384, sizeof H384);
+}
+
+void
+SHA384_Update(SHA384Context *ctx, const unsigned char *input,
+		    unsigned int inputLen)
+{
+    SHA512_Update(ctx, input, inputLen);
+}
+
+void
+SHA384_End(SHA384Context *ctx, unsigned char *digest,
+		 unsigned int *digestLen, unsigned int maxDigestLen)
+{
+#define SHA_MIN(a,b) (a < b ? a : b)
+    unsigned int maxLen = SHA_MIN(maxDigestLen, SHA384_LENGTH);
+    SHA512_End(ctx, digest, digestLen, maxLen);
+}
+
+SECStatus
+SHA384_HashBuf(unsigned char *dest, const unsigned char *src,
+			  unsigned int src_length)
+{
+    SHA512Context ctx;
+    unsigned int outLen;
+
+    SHA384_Begin(&ctx);
+    SHA512_Update(&ctx, src, src_length);
+    SHA512_End(&ctx, dest, &outLen, SHA384_LENGTH);
+
+    return SECSuccess;
+}
+
+SECStatus
+SHA384_Hash(unsigned char *dest, const char *src)
+{
+    return SHA384_HashBuf(dest, (const unsigned char *)src, PORT_Strlen(src));
+}
+
+void SHA384_TraceState(SHA384Context *ctx) { }
+
+unsigned int
+SHA384_FlattenSize(SHA384Context *ctx)
+{
+    return sizeof(SHA384Context);
+}
+
+SECStatus
+SHA384_Flatten(SHA384Context *ctx,unsigned char *space)
+{
+    return SHA512_Flatten(ctx, space);
+}
+
+SHA384Context *
+SHA384_Resurrect(unsigned char *space, void *arg)
+{
+    return SHA512_Resurrect(space, arg);
+}
+
+void SHA384_Clone(SHA384Context *dest, SHA384Context *src)
+{
+    memcpy(dest, src, sizeof *dest);
+}
+#endif  /* Comment out unused code. */
+
+/* ======================================================================= */
+#ifdef SELFTEST
+#include <stdio.h>
+
+static const char abc[] = { "abc" };
+static const char abcdbc[] = {
+    "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
+};
+static const char abcdef[] = {
+    "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
+    "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"
+};
+
+void
+dumpHash32(const unsigned char *buf, unsigned int bufLen)
+{
+    unsigned int i;
+    for (i = 0; i < bufLen; i += 4) {
+	printf(" %02x%02x%02x%02x", buf[i], buf[i+1], buf[i+2], buf[i+3]);
+    }
+    printf("\n");
+}
+
+void test256(void)
+{
+    unsigned char outBuf[SHA256_LENGTH];
+
+    printf("SHA256, input = %s\n", abc);
+    SHA256_Hash(outBuf, abc);
+    dumpHash32(outBuf, sizeof outBuf);
+
+    printf("SHA256, input = %s\n", abcdbc);
+    SHA256_Hash(outBuf, abcdbc);
+    dumpHash32(outBuf, sizeof outBuf);
+}
+
+void
+dumpHash64(const unsigned char *buf, unsigned int bufLen)
+{
+    unsigned int i;
+    for (i = 0; i < bufLen; i += 8) {
+    	if (i % 32 == 0)
+	    printf("\n");
+	printf(" %02x%02x%02x%02x%02x%02x%02x%02x",
+	       buf[i  ], buf[i+1], buf[i+2], buf[i+3],
+	       buf[i+4], buf[i+5], buf[i+6], buf[i+7]);
+    }
+    printf("\n");
+}
+
+void test512(void)
+{
+    unsigned char outBuf[SHA512_LENGTH];
+
+    printf("SHA512, input = %s\n", abc);
+    SHA512_Hash(outBuf, abc);
+    dumpHash64(outBuf, sizeof outBuf);
+
+    printf("SHA512, input = %s\n", abcdef);
+    SHA512_Hash(outBuf, abcdef);
+    dumpHash64(outBuf, sizeof outBuf);
+}
+
+void time512(void)
+{
+    unsigned char outBuf[SHA512_LENGTH];
+
+    SHA512_Hash(outBuf, abc);
+    SHA512_Hash(outBuf, abcdef);
+}
+
+void test384(void)
+{
+    unsigned char outBuf[SHA384_LENGTH];
+
+    printf("SHA384, input = %s\n", abc);
+    SHA384_Hash(outBuf, abc);
+    dumpHash64(outBuf, sizeof outBuf);
+
+    printf("SHA384, input = %s\n", abcdef);
+    SHA384_Hash(outBuf, abcdef);
+    dumpHash64(outBuf, sizeof outBuf);
+}
+
+int main (int argc, char *argv[], char *envp[])
+{
+    int i = 1;
+    if (argc > 1) {
+    	i = atoi(argv[1]);
+    }
+    if (i < 2) {
+	test256();
+	test512();
+	test384();
+    } else {
+    	while (i-- > 0) {
+	    time512();
+	}
+	printf("done\n");
+    }
+    return 0;
+}
+
+#endif