56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
/*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* 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 void *restrict, size_t) noexcept;
|
|
void update (const uint8_t *restrict first, const uint8_t *restrict last) noexcept;
|
|
|
|
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
|