56 lines
1.4 KiB
C++
56 lines
1.4 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:
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* 2014, Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_HASH_SHA2_HPP
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#define __UTIL_HASH_SHA2_HPP
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#include <array>
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#include <cstdint>
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///////////////////////////////////////////////////////////////////////////////
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namespace util::hash {
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class SHA256 {
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public:
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typedef std::array<uint8_t,32> digest_t;
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public:
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SHA256();
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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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private:
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void process (void);
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uint64_t m_total;
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std::array<uint32_t, 8> H;
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union {
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std::array<uint32_t, 16> M;
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std::array<uint8_t, 64> C;
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};
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};
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}
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#endif
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