1 /* Copyright (C) 2010 Wildfire Games.
2 * This file is part of 0 A.D.
4 * 0 A.D. is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
9 * 0 A.D. is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
24 * MD5 hashing algorithm. Note that MD5 is broken and must not be used for
25 * anything that requires security.
30 static const size_t DIGESTSIZE
= 16;
34 void Update(const u8
* data
, size_t len
)
36 // (Defined inline for efficiency in the common fixed-length fits-in-buffer case)
38 const size_t CHUNK_SIZE
= sizeof(m_Buf
);
42 // If we have enough space in m_Buf and won't flush, simply append the input
43 if (m_BufLen
+ len
< CHUNK_SIZE
)
45 memcpy(m_Buf
+ m_BufLen
, data
, len
);
50 // Fall back to non-inline function if we have to do more work
51 UpdateRest(data
, len
);
54 void Final(u8
* digest
);
58 void UpdateRest(const u8
* data
, size_t len
);
59 void Transform(const u32
* in
);
60 u32 m_Digest
[4]; // internal state
61 u8 m_Buf
[64]; // buffered input bytes
62 size_t m_BufLen
; // bytes in m_Buf that are valid
63 u64 m_InputLen
; // bytes
66 #endif // INCLUDED_MD5