forked from 0ad/0ad
bb
157c6af18e
Avoid cases of filenames Update years in terms and other legal(ish) documents Don't update years in license headers, since change is not meaningful Will add linter rule in seperate commit Happy recompiling everyone! Original Patch By: Nescio Comment By: Gallaecio Differential Revision: D2620 This was SVN commit r27786.
67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_MD5
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#define INCLUDED_MD5
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#include <cstring>
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/**
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* MD5 hashing algorithm. Note that MD5 is broken and must not be used for
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* anything that requires security.
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*/
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class MD5
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{
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public:
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static const size_t DIGESTSIZE = 16;
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MD5();
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void Update(const u8* data, size_t len)
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{
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// (Defined inline for efficiency in the common fixed-length fits-in-buffer case)
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const size_t CHUNK_SIZE = sizeof(m_Buf);
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m_InputLen += len;
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// If we have enough space in m_Buf and won't flush, simply append the input
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if (m_BufLen + len < CHUNK_SIZE)
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{
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memcpy(m_Buf + m_BufLen, data, len);
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m_BufLen += len;
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return;
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}
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// Fall back to non-inline function if we have to do more work
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UpdateRest(data, len);
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}
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void Final(u8* digest);
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private:
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void InitState();
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void UpdateRest(const u8* data, size_t len);
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void Transform(const u32* in);
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u32 m_Digest[4]; // internal state
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u8 m_Buf[64]; // buffered input bytes
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size_t m_BufLen; // bytes in m_Buf that are valid
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u64 m_InputLen; // bytes
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};
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#endif // INCLUDED_MD5
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