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Issue 1924093006: Removing crypto/third_party/nss/ and removing crypto _win files (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Remove unused sources. Created 4 years, 7 months ago
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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> 13 #include <memory>
14 #include <vector>
14 15
15 #include "base/compiler_specific.h" 16 #include "base/compiler_specific.h"
16 #include "base/macros.h" 17 #include "base/macros.h"
17 #include "base/strings/string_piece.h" 18 #include "base/strings/string_piece.h"
18 #include "crypto/crypto_export.h" 19 #include "crypto/crypto_export.h"
19 20
20 namespace crypto { 21 namespace crypto {
21 22
22 // Simplify the interface and reduce includes by abstracting out the internals. 23 // Simplify the interface and reduce includes by abstracting out the internals.
23 struct HMACPlatformData;
24 class SymmetricKey; 24 class SymmetricKey;
25 25
26 class CRYPTO_EXPORT HMAC { 26 class CRYPTO_EXPORT HMAC {
27 public: 27 public:
28 // The set of supported hash functions. Extend as required. 28 // The set of supported hash functions. Extend as required.
29 enum HashAlgorithm { 29 enum HashAlgorithm {
30 SHA1, 30 SHA1,
31 SHA256, 31 SHA256,
32 }; 32 };
33 33
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79 const base::StringPiece& digest) const WARN_UNUSED_RESULT; 79 const base::StringPiece& digest) const WARN_UNUSED_RESULT;
80 80
81 // Verifies a truncated HMAC, behaving identical to Verify(), except 81 // Verifies a truncated HMAC, behaving identical to Verify(), except
82 // that |digest| is allowed to be smaller than |DigestLength()|. 82 // that |digest| is allowed to be smaller than |DigestLength()|.
83 bool VerifyTruncated( 83 bool VerifyTruncated(
84 const base::StringPiece& data, 84 const base::StringPiece& data,
85 const base::StringPiece& digest) const WARN_UNUSED_RESULT; 85 const base::StringPiece& digest) const WARN_UNUSED_RESULT;
86 86
87 private: 87 private:
88 HashAlgorithm hash_alg_; 88 HashAlgorithm hash_alg_;
89 std::unique_ptr<HMACPlatformData> plat_; 89 bool initialized_;
90 std::vector<unsigned char> key_;
90 91
91 DISALLOW_COPY_AND_ASSIGN(HMAC); 92 DISALLOW_COPY_AND_ASSIGN(HMAC);
92 }; 93 };
93 94
94 } // namespace crypto 95 } // namespace crypto
95 96
96 #endif // CRYPTO_HMAC_H_ 97 #endif // CRYPTO_HMAC_H_
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