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48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*
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* Descent 3
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* Copyright (C) 2024 Parallax Software
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MD5_H
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#define MD5_H
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#include <array>
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#include <cstdint>
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class MD5 {
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private:
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std::array<std::uint32_t, 4> sums_{0x67452301UL, 0XEFCDAB89UL, 0x98BADCFEUL, 0x10325476UL};
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std::array<uint8_t, 64> tmpbuf_;
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std::size_t tmpbuf_n_{0};
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std::uint64_t message_len_{0};
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void round(const uint8_t *block) noexcept;
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void round(std::array<std::uint32_t, 4> &sums, const uint8_t *block) const noexcept;
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void place_length(uint8_t *destination) const noexcept;
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public:
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void update(const uint8_t *data, std::size_t n) noexcept;
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void update(float val) noexcept;
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void update(int val) noexcept;
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void update(uint32_t val) noexcept;
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void update(uint8_t val) noexcept;
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void update(int16_t val) noexcept;
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std::array<uint8_t, 16> digest() const noexcept;
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void digest(uint8_t *destination) const noexcept;
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};
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#endif // MD5_H
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