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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Utility class for calculating the HMAC for a given message. We currently | 5 // Utility class for calculating the HMAC for a given message. We currently |
6 // only support SHA1 for the hash algorithm, but this can be extended easily. | 6 // only support SHA1 for the hash algorithm, but this can be extended easily. |
7 | 7 |
8 #ifndef CRYPTO_HMAC_H_ | 8 #ifndef CRYPTO_HMAC_H_ |
9 #define CRYPTO_HMAC_H_ | 9 #define CRYPTO_HMAC_H_ |
10 | 10 |
11 #include <stddef.h> | 11 #include <stddef.h> |
12 | 12 |
| 13 #include <memory> |
| 14 |
13 #include "base/compiler_specific.h" | 15 #include "base/compiler_specific.h" |
14 #include "base/macros.h" | 16 #include "base/macros.h" |
15 #include "base/memory/scoped_ptr.h" | |
16 #include "base/strings/string_piece.h" | 17 #include "base/strings/string_piece.h" |
17 #include "crypto/crypto_export.h" | 18 #include "crypto/crypto_export.h" |
18 | 19 |
19 namespace crypto { | 20 namespace crypto { |
20 | 21 |
21 // Simplify the interface and reduce includes by abstracting out the internals. | 22 // Simplify the interface and reduce includes by abstracting out the internals. |
22 struct HMACPlatformData; | 23 struct HMACPlatformData; |
23 class SymmetricKey; | 24 class SymmetricKey; |
24 | 25 |
25 class CRYPTO_EXPORT HMAC { | 26 class CRYPTO_EXPORT HMAC { |
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78 const base::StringPiece& digest) const WARN_UNUSED_RESULT; | 79 const base::StringPiece& digest) const WARN_UNUSED_RESULT; |
79 | 80 |
80 // Verifies a truncated HMAC, behaving identical to Verify(), except | 81 // Verifies a truncated HMAC, behaving identical to Verify(), except |
81 // that |digest| is allowed to be smaller than |DigestLength()|. | 82 // that |digest| is allowed to be smaller than |DigestLength()|. |
82 bool VerifyTruncated( | 83 bool VerifyTruncated( |
83 const base::StringPiece& data, | 84 const base::StringPiece& data, |
84 const base::StringPiece& digest) const WARN_UNUSED_RESULT; | 85 const base::StringPiece& digest) const WARN_UNUSED_RESULT; |
85 | 86 |
86 private: | 87 private: |
87 HashAlgorithm hash_alg_; | 88 HashAlgorithm hash_alg_; |
88 scoped_ptr<HMACPlatformData> plat_; | 89 std::unique_ptr<HMACPlatformData> plat_; |
89 | 90 |
90 DISALLOW_COPY_AND_ASSIGN(HMAC); | 91 DISALLOW_COPY_AND_ASSIGN(HMAC); |
91 }; | 92 }; |
92 | 93 |
93 } // namespace crypto | 94 } // namespace crypto |
94 | 95 |
95 #endif // CRYPTO_HMAC_H_ | 96 #endif // CRYPTO_HMAC_H_ |
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