| // Copyright 2012 The Chromium OS 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 LIBWEAVE_THIRD_PARTY_CHROMIUM_SHA2_H_ |
| #define LIBWEAVE_THIRD_PARTY_CHROMIUM_SHA2_H_ |
| |
| #include <string> |
| |
| namespace crypto { |
| |
| // These functions perform SHA-256 operations. |
| // |
| // Functions for SHA-384 and SHA-512 can be added when the need arises. |
| |
| static const size_t kSHA256Length = 32; // Length in bytes of a SHA-256 hash. |
| |
| // Computes the SHA-256 hash of the input string 'str' and stores the first |
| // 'len' bytes of the hash in the output buffer 'output'. If 'len' > 32, |
| // only 32 bytes (the full hash) are stored in the 'output' buffer. |
| void SHA256HashString(const std::string& str, uint8_t* output, size_t len); |
| |
| // Convenience version of the above that returns the result in a 32-byte |
| // string. |
| std::string SHA256HashString(const std::string& str); |
| |
| } // namespace crypto |
| |
| #endif // LIBWEAVE_THIRD_PARTY_CHROMIUM_SHA2_H_ |
