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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef CRYPTO_SECURE_HASH_H_ | 5 #ifndef CRYPTO_SECURE_HASH_H_ |
6 #define CRYPTO_SECURE_HASH_H_ | 6 #define CRYPTO_SECURE_HASH_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "crypto/crypto_api.h" | 10 #include "crypto/crypto_export.h" |
11 | 11 |
12 namespace crypto { | 12 namespace crypto { |
13 | 13 |
14 // A wrapper to calculate secure hashes incrementally, allowing to | 14 // A wrapper to calculate secure hashes incrementally, allowing to |
15 // be used when the full input is not known in advance. | 15 // be used when the full input is not known in advance. |
16 class CRYPTO_API SecureHash { | 16 class CRYPTO_EXPORT SecureHash { |
17 public: | 17 public: |
18 enum Algorithm { | 18 enum Algorithm { |
19 SHA256, | 19 SHA256, |
20 }; | 20 }; |
21 virtual ~SecureHash() {} | 21 virtual ~SecureHash() {} |
22 | 22 |
23 static SecureHash* Create(Algorithm type); | 23 static SecureHash* Create(Algorithm type); |
24 | 24 |
25 virtual void Update(const void* input, size_t len) = 0; | 25 virtual void Update(const void* input, size_t len) = 0; |
26 virtual void Finish(void* output, size_t len) = 0; | 26 virtual void Finish(void* output, size_t len) = 0; |
27 | 27 |
28 protected: | 28 protected: |
29 SecureHash() {} | 29 SecureHash() {} |
30 | 30 |
31 private: | 31 private: |
32 DISALLOW_COPY_AND_ASSIGN(SecureHash); | 32 DISALLOW_COPY_AND_ASSIGN(SecureHash); |
33 }; | 33 }; |
34 | 34 |
35 } // namespace crypto | 35 } // namespace crypto |
36 | 36 |
37 #endif // CRYPTO_SECURE_HASH_H_ | 37 #endif // CRYPTO_SECURE_HASH_H_ |
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