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// Copyright (c) 2011 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_
#pragma once
#include <string>
namespace crypto {
// These functions perform SHA-256 operations.
//
// Functions for SHA-384 and SHA-512 can be added when the need arises.
enum {
SHA256_LENGTH = 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,
void* 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 // CRYPTO_SHA2_H_
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