libcruft-util/hash/sha1.hpp

63 lines
1.5 KiB
C++
Raw Normal View History

2013-03-11 20:47:48 +11:00
/*
2015-04-13 18:05:28 +10:00
* 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
2013-03-11 20:47:48 +11:00
*
2015-04-13 18:05:28 +10:00
* http://www.apache.org/licenses/LICENSE-2.0
2014-07-02 15:40:20 +10:00
*
2015-04-13 18:05:28 +10:00
* 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.
2013-03-11 20:47:48 +11:00
*
* Copyright 2013 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_HASH_SHA1_HPP
#define __UTIL_HASH_SHA1_HPP
#include <cstdint>
#include <cstdlib>
#include <array>
2015-03-02 00:35:30 +11:00
//-----------------------------------------------------------------------------
namespace util { namespace hash {
class SHA1 {
public:
typedef std::array<uint8_t,20> digest_t;
2015-03-02 01:21:52 +11:00
static const size_t BLOCK_SIZE = 64;
static const size_t DIGEST_SIZE = 20;
2015-03-02 00:35:30 +11:00
public:
SHA1();
void update (const uint8_t *, size_t);
void finish (void);
digest_t digest (void) const;
void reset (void);
enum state_t {
READY,
FINISHED
};
2014-07-02 15:40:20 +10:00
2015-03-02 00:35:30 +11:00
protected:
void process (void);
2013-03-11 20:47:48 +11:00
2015-03-02 00:35:30 +11:00
state_t state;
2013-03-11 20:47:48 +11:00
2015-03-02 00:35:30 +11:00
uint64_t total;
uint32_t H[5];
2014-07-02 15:40:20 +10:00
2015-03-02 00:35:30 +11:00
union {
uint8_t c[16*4+64*4];
uint32_t W[16 +64 ];
2013-03-11 20:47:48 +11:00
};
2015-03-02 00:35:30 +11:00
};
} }
2013-03-11 20:47:48 +11:00
#endif