2 Copyright (C) 2003, 2010 - Wolfire Games
4 This file is part of Lugaru.
6 Lugaru is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 See the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 // MD5.CC - source code for the C++/object oriented translation and
23 // modification of MD5.
25 // Translation and modification (c) 1995 by Mordechai T. Abzug
27 // This translation/ modification is provided "as is," without express or
28 // implied warranty of any kind.
30 // The translator/ modifier does not claim (1) that MD5 will do what you think
31 // it does; (2) that this translation/ modification is accurate; or (3) that
32 // this software is "merchantible." (Language for this disclaimer partially
33 // copied from the disclaimer below).
37 MD5.H - header file for MD5C.C
38 MDDRIVER.C - test driver for MD2, MD4 and MD5
40 Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
43 License to copy and use this software is granted provided that it
44 is identified as the "RSA Data Security, Inc. MD5 Message-Digest
45 Algorithm" in all material mentioning or referencing this software
48 License is also granted to make and use derivative works provided
49 that such works are identified as "derived from the RSA Data
50 Security, Inc. MD5 Message-Digest Algorithm" in all material
51 mentioning or referencing the derived work.
53 RSA Data Security, Inc. makes no representations concerning either
54 the merchantability of this software or the suitability of this
55 software for any particular purpose. It is provided "as is"
56 without express or implied warranty of any kind.
58 These notices must be retained in any copies of any part of this
59 documentation and/or software.
71 // methods for controlled operation:
72 MD5 (); // simple initializer
73 void update (unsigned char *input, unsigned int input_length);
74 void update (istream& stream);
75 void update (FILE *file);
76 void update (ifstream& stream);
79 // constructors for special circumstances. All these constructors finalize
81 MD5 (unsigned char *string); // digest string, finalize
82 MD5 (istream& stream); // digest stream, finalize
83 MD5 (FILE *file); // digest file, close, finalize
84 MD5 (ifstream& stream); // digest stream, close, finalize
86 // methods to acquire finalized result
87 unsigned char *raw_digest (); // digest as a 16-byte binary array
88 char * hex_digest (); // digest as a 33-byte ascii-hex string
89 friend ostream& operator<< (ostream&, MD5 context);
96 typedef unsigned int uint4; // assumes integer is 4 words long
97 typedef unsigned short int uint2; // assumes short integer is 2 words long
98 typedef unsigned char uint1; // assumes char is 1 word long
100 // next, the private data:
102 uint4 count[2]; // number of *bits*, mod 2^64
103 uint1 buffer[64]; // input buffer
107 // last, the private methods, mostly static:
108 void init (); // called by all constructors
109 void transform (uint1 *buffer); // does the real update work. Note
110 // that length is implied to be 64.
112 static void encode (uint1 *dest, uint4 *src, uint4 length);
113 static void decode (uint4 *dest, uint1 *src, uint4 length);
114 static void memcpy (uint1 *dest, uint1 *src, uint4 length);
115 static void memset (uint1 *start, uint1 val, uint4 length);
117 static inline uint4 rotate_left (uint4 x, uint4 n);
118 static inline uint4 F (uint4 x, uint4 y, uint4 z);
119 static inline uint4 G (uint4 x, uint4 y, uint4 z);
120 static inline uint4 H (uint4 x, uint4 y, uint4 z);
121 static inline uint4 I (uint4 x, uint4 y, uint4 z);
122 static inline void FF (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x,
124 static inline void GG (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x,
126 static inline void HH (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x,
128 static inline void II (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x,