aboutsummaryrefslogtreecommitdiff
path: root/src/md5.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/md5.cpp')
-rw-r--r--src/md5.cpp190
1 files changed, 0 insertions, 190 deletions
diff --git a/src/md5.cpp b/src/md5.cpp
deleted file mode 100644
index c0cacdd..0000000
--- a/src/md5.cpp
+++ /dev/null
@@ -1,190 +0,0 @@
1#include <stdio.h>
2#include <stdlib.h>
3#include <string.h>
4#include "md5.h"
5
6// This is a fun macro that tells us where the length char goes after the data
7// section in the padded data segment. It's short for OBfuscation LOCaction.
8#define OBLOC(len) ((((len + 64) >> 9) << 4) + 14)
9// This performs a wrapping bitwise shift, kinda' fun!
10
11#define bit_roll( num, cnt ) \
12 (((num) << (cnt)) | (((num) >> (32 - (cnt))) & ~(-1<<(cnt))))
13
14//#define md5_cmn( q, a, b, x, s, t ) (bit_roll((a + q + x + t), s) + b)
15
16// The following are handy wrappers for the cmn function
17#define md5_ff( a, b, c, d, x, s, t ) \
18 (md5_cmn((b & c) | ((~b) & d), a, b, x, s, t))
19
20#define md5_gg( a, b, c, d, x, s, t ) \
21 (md5_cmn((b & d) | (c & (~d)), a, b, x, s, t))
22
23#define md5_hh( a, b, c, d, x, s, t ) \
24 (md5_cmn(b ^ c ^ d, a, b, x, s, t))
25
26#define md5_ii( a, b, c, d, x, s, t ) \
27 (md5_cmn(c ^ (b | (~d)), a, b, x, s, t))
28
29inline long md5_cmn( long q, long a, long b, long x, long s, long t )
30{
31 return bit_roll((a + q + x + t), s) + b;
32}
33
34md5::md5()
35{
36}
37
38md5::~md5()
39{
40}
41
42/*
43 * Calculate the MD5 of an array of little-endian words, and a bit length
44 */
45void md5::core_md5( long *x, long len, md5sum *output )
46{
47 long a = 1732584193, olda;
48 long b = -271733879, oldb;
49 long c = -1732584194, oldc;
50 long d = 271733878, oldd;
51
52 for( long i = 0; i < len; i += 16 )
53 {
54 olda = a;
55 oldb = b;
56 oldc = c;
57 oldd = d;
58
59 a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
60 d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
61 c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
62 b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
63 a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
64 d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
65 c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
66 b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
67 a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
68 d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
69 c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
70 b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
71 a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
72 d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
73 c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
74 b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);
75
76 a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
77 d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
78 c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
79 b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
80 a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
81 d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
82 c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
83 b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
84 a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
85 d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
86 c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
87 b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
88 a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
89 d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
90 c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
91 b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
92
93 a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
94 d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
95 c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
96 b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
97 a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
98 d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
99 c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
100 b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
101 a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
102 d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
103 c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
104 b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
105 a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
106 d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
107 c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
108 b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
109
110 a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
111 d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
112 c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
113 b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
114 a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
115 d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
116 c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
117 b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
118 a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
119 d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
120 c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
121 b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
122 a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
123 d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
124 c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
125 b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
126
127 a = a + olda;
128 b = b + oldb;
129 c = c + oldc;
130 d = d + oldd;
131 }
132
133 output->data[0] = a;
134 output->data[1] = b;
135 output->data[2] = c;
136 output->data[3] = d;
137 delete[] x;
138}
139
140long *md5::c2l( const char *str, long len, long *nNewLen )
141{
142 long len8 = len*8;
143 long mlen = OBLOC( len8 );
144 long flen = (((mlen/16)+((mlen%16)?(1):(0))))*16;
145 long *aBin = new long[flen];
146 memset( aBin, 0, flen*4 );
147
148 for( long i = 0; i < len8; i+=8 )
149 {
150 aBin[i>>5] |= ((long)str[i/8]) << (i%32);
151 }
152
153 aBin[len8 >> 5] |= 0x80 << ((len8) % 32);
154 aBin[OBLOC( len8 )] = len8;
155
156 (*nNewLen) = flen;
157
158 return aBin;
159}
160
161void md5::l2hexstr( long *binarray, char *str )
162{
163 static const char hex_tab[] = {"0123456789abcdef"};
164 //static char str[33];
165
166 int k = 0;
167 for( int i = 0; i < 16; i++)
168 {
169 str[k++] = hex_tab[(binarray[i>>2] >> ((i%4)*8+4)) & 0xF];
170 str[k++] = hex_tab[(binarray[i>>2] >> ((i%4)*8 )) & 0xF];
171 }
172}
173
174void md5::sumString( md5sum *pSum, const char *sStr )
175{
176 sumData( pSum, sStr, strlen( sStr ) );
177}
178
179void md5::sumData( md5sum *pSum, const char *aData, long nLen )
180{
181 long nNewLen;
182 long *aOb = c2l( aData, nLen, &nNewLen );
183 core_md5( aOb, nNewLen, pSum );
184}
185
186void md5::sumToHex( md5sum *pSum, char *sHex )
187{
188 l2hexstr( pSum->data, sHex );
189}
190
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-26 17:22:53 +0000