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authoraa@chromium.org <aa@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2009-06-05 18:25:06 +0000
committeraa@chromium.org <aa@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2009-06-05 18:25:06 +0000
commit28ae8fe2c8c845ad2d2272bec95507c4328bbc3c (patch)
treee7a9e17f2d38b8a4f0016922eb05bbc9e387aea6 /base/crypto/signature_creator.h
parentf9526c75bd7c6febdfc99e98bb6355c9b4aa1500 (diff)
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Introduce SignatureCreator.
Review URL: http://codereview.chromium.org/118277 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17745 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/crypto/signature_creator.h')
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1 files changed, 53 insertions, 0 deletions
diff --git a/base/crypto/signature_creator.h b/base/crypto/signature_creator.h
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+// Copyright (c) 2009 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_SIGNATURE_CREATOR_H_
+#define BASE_CRYPTO_SIGNATURE_CREATOR_H_
+
+#if defined(OS_WIN)
+#include <windows.h>
+#include <wincrypt.h>
+#else
+// TODO(PORT)
+#endif
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/crypto/rsa_private_key.h"
+
+namespace base {
+
+// Signs data using a bare private key (as opposed to a full certificate).
+// Currently can only sign data using SHA-1 with RSA encryption.
+class SignatureCreator {
+ public:
+ // Create an instance. The caller must ensure that the provided PrivateKey
+ // instance outlives the created SignatureCreator.
+ static SignatureCreator* Create(RSAPrivateKey* key);
+
+ ~SignatureCreator();
+
+ // 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(OS_WIN)
+ HCRYPTHASH hash_object_;
+#endif
+
+ DISALLOW_COPY_AND_ASSIGN(SignatureCreator);
+};
+
+} // namespace base
+
+#endif // BASE_CRYPTO_SIGNATURE_CREATOR_H_