65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2013 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_HASH_SHA1_HPP
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#define __UTIL_HASH_SHA1_HPP
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#include <cstdint>
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#include <cstdlib>
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#include <array>
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///////////////////////////////////////////////////////////////////////////////
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namespace util { namespace hash {
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class SHA1 {
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public:
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typedef std::array<uint8_t,20> digest_t;
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static const size_t BLOCK_SIZE = 64;
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static const size_t DIGEST_SIZE = 20;
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public:
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SHA1();
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void update (const void *restrict, size_t) noexcept;
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void update (const uint8_t *restrict first, const uint8_t *restrict last) noexcept;
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void finish (void);
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digest_t digest (void) const;
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void reset (void);
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enum state_t {
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READY,
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FINISHED
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};
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protected:
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void process (void);
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state_t state;
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uint64_t total;
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uint32_t H[5];
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union {
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uint8_t c[16*4+64*4];
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uint32_t W[16 +64 ];
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};
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};
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} }
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#endif
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