1 files changed, 43 insertions, 0 deletions
diff --git a/chromium/components/gcm_driver/crypto/p256_key_util.h b/chromium/components/gcm_driver/crypto/p256_key_util.h
new file mode 100644
index 00000000000..05bd36c6e9c
--- /dev/null
+++ b/chromium/components/gcm_driver/crypto/p256_key_util.h
@@ -0,0 +1,43 @@
+// Copyright 2015 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 COMPONENTS_GCM_DRIVER_CRYPTO_P256_KEY_UTIL_H_
+#define COMPONENTS_GCM_DRIVER_CRYPTO_P256_KEY_UTIL_H_
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/strings/string_piece.h"
+
+namespace crypto {
+class ECPrivateKey;
+}
+
+namespace gcm {
+
+// Writes the public key associated with the |key| to |*public_key| in
+// uncompressed point format. That is, a 65-octet sequence that starts with a
+// 0x04 octet. Returns whether the public key could be extracted successfully.
+bool GetRawPublicKey(const crypto::ECPrivateKey& key,
+                     std::string* public_key) WARN_UNUSED_RESULT;
+
+// Writes the private key associated with the |key| to |*private_key| as a PKCS
+// #8 PrivateKeyInfo block. Returns whether the private key could be extracted
+// successfully.
+bool GetRawPrivateKey(const crypto::ECPrivateKey& key,
+                      std::string* private_key) WARN_UNUSED_RESULT;
+
+// Computes the shared secret between |key| and |peer_public_key|.The
+// |peer_public_key| must be an octet string in uncompressed form per
+// SEC1 2.3.3.
+//
+// Returns whether the secret could be computed, and was written to the out
+// argument.
+bool ComputeSharedP256Secret(crypto::ECPrivateKey& key,
+                             const base::StringPiece& peer_public_key,
+                             std::string* out_shared_secret) WARN_UNUSED_RESULT;
+
+}  // namespace gcm
+
+#endif  // COMPONENTS_GCM_DRIVER_CRYPTO_P256_KEY_UTIL_H_