libcruft-util/hash/sha2.hpp
Danny Robson 513b09c1c9 sha2: rename SHA2 class to SHA256
temporary rename for clarity in existing algorithm code. revisit when/if
we get implementations for each bit length.
2014-05-09 13:01:02 +10:00

48 lines
1.1 KiB
C++

/*
* This file is part of libgim
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2014 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_HASH_SHA2_HPP
#define __UTIL_HASH_SHA2_HPP
#include <array>
#include <cstdint>
namespace util {
namespace hash {
class SHA256 {
public:
typedef std::array<uint8_t,32> digest_t;
public:
SHA256();
void update (const uint8_t *, size_t);
void finish (void);
digest_t digest (void) const;
void reset (void);
private:
void process (void);
uint64_t m_total;
std::array<uint32_t, 8> H;
union {
std::array<uint32_t, 16> M;
std::array<uint8_t, 64> C;
};
};
}
}
#endif