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
3 // found in the LICENSE file.
10 #include "base/strings/string_piece.h"
11 #include "crypto/crypto_export.h"
15 // These functions perform SHA-256 operations.
17 // Functions for SHA-384 and SHA-512 can be added when the need arises.
19 static const size_t kSHA256Length
= 32; // Length in bytes of a SHA-256 hash.
21 // Computes the SHA-256 hash of the input string 'str' and stores the first
22 // 'len' bytes of the hash in the output buffer 'output'. If 'len' > 32,
23 // only 32 bytes (the full hash) are stored in the 'output' buffer.
24 CRYPTO_EXPORT
void SHA256HashString(const base::StringPiece
& str
,
25 void* output
, size_t len
);
27 // Convenience version of the above that returns the result in a 32-byte
29 CRYPTO_EXPORT
std::string
SHA256HashString(const base::StringPiece
& str
);
33 #endif // CRYPTO_SHA2_H_