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Diffstat (limited to 'crypto/sha2.h')
-rw-r--r-- | crypto/sha2.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/crypto/sha2.h b/crypto/sha2.h new file mode 100644 index 0000000000..7e279d3e94 --- /dev/null +++ b/crypto/sha2.h @@ -0,0 +1,33 @@ +// Copyright (c) 2012 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 CRYPTO_SHA2_H_ +#define CRYPTO_SHA2_H_ + +#include <string> + +#include "base/strings/string_piece.h" +#include "crypto/crypto_export.h" + +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. +CRYPTO_EXPORT void SHA256HashString(const base::StringPiece& str, + void* output, size_t len); + +// Convenience version of the above that returns the result in a 32-byte +// string. +CRYPTO_EXPORT std::string SHA256HashString(const base::StringPiece& str); + +} // namespace crypto + +#endif // CRYPTO_SHA2_H_ |