PBKDF2 implemetation using NSS.

BUG=none
TEST=unit test

Review URL: http://codereview.chromium.org/1024001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42247 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 46 insertions, 0 deletions

diff --git a/base/crypto/symmetric_key.h b/base/crypto/symmetric_key.h
new file mode 100644
index 0000000..c298048
--- /dev/null
+++ b/base/crypto/symmetric_key.h
@@ -0,0 +1,46 @@
+// Copyright (c) 2010 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 BASE_CRYPTO_SYMMETRIC_KEY_H_
+#define BASE_CRYPTO_SYMMETRIC_KEY_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+
+#if defined(USE_NSS)
+#include "base/crypto/scoped_nss_types.h"
+#endif  // USE_NSS
+
+namespace base {
+
+// Wraps a platform-specific symmetric key and allows it to be held in a
+// scoped_ptr.
+class SymmetricKey {
+ public:
+#if defined(USE_NSS)
+  explicit SymmetricKey(PK11SymKey* key) : key_(key) {}
+#endif  // USE_NSS
+
+  virtual ~SymmetricKey() {}
+
+#if defined(USE_NSS)
+  PK11SymKey* key() const { return key_.get(); }
+#endif  // USE_NSS
+
+  // Extracts the raw key from the platform specific data. This should only be
+  // done in unit tests to verify that keys are generated correctly.
+  bool GetRawKey(std::string* raw_key);
+
+ private:
+#if defined(USE_NSS)
+  ScopedPK11SymKey key_;
+#endif  // USE_NSS
+
+  DISALLOW_COPY_AND_ASSIGN(SymmetricKey);
+};
+
+}  // namespace base
+
+#endif   // BASE_CRYPTO_SYMMETRIC_KEY_H_