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md5_dgst.c
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1 /* crypto/md5/md5_dgst.c */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to. The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson ([email protected]).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  * notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  * notice, this list of conditions and the following disclaimer in the
30  * documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  * must display the following acknowledgement:
33  * "This product includes cryptographic software written by
34  * Eric Young ([email protected])"
35  * The word 'cryptographic' can be left out if the rouines from the library
36  * being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  * the apps directory (application code) you must include an acknowledgement:
39  * "This product includes software written by Tim Hudson ([email protected])"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed. i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #include <stdio.h>
60 #include "md5_locl.h"
61 #include <openssl/opensslv.h>
62 #include <openssl/crypto.h>
63 
65 
66 /* Implemented from RFC1321 The MD5 Message-Digest Algorithm
67  */
68 
69 #define INIT_DATA_A (unsigned long)0x67452301L
70 #define INIT_DATA_B (unsigned long)0xefcdab89L
71 #define INIT_DATA_C (unsigned long)0x98badcfeL
72 #define INIT_DATA_D (unsigned long)0x10325476L
73 
75  {
76  memset (c,0,sizeof(*c));
77  c->A=INIT_DATA_A;
78  c->B=INIT_DATA_B;
79  c->C=INIT_DATA_C;
80  c->D=INIT_DATA_D;
81  return 1;
82  }
83 
84 #ifndef md5_block_data_order
85 #ifdef X
86 #undef X
87 #endif
88 void md5_block_data_order (MD5_CTX *c, const void *data_, size_t num)
89  {
90  const unsigned char *data=data_;
91  register unsigned MD32_REG_T A,B,C,D,l;
92 #ifndef MD32_XARRAY
93  /* See comment in crypto/sha/sha_locl.h for details. */
94  unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
95  XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
96 # define X(i) XX##i
97 #else
98  MD5_LONG XX[MD5_LBLOCK];
99 # define X(i) XX[i]
100 #endif
101 
102  A=c->A;
103  B=c->B;
104  C=c->C;
105  D=c->D;
106 
107  for (;num--;)
108  {
109  HOST_c2l(data,l); X( 0)=l; HOST_c2l(data,l); X( 1)=l;
110  /* Round 0 */
111  R0(A,B,C,D,X( 0), 7,0xd76aa478L); HOST_c2l(data,l); X( 2)=l;
112  R0(D,A,B,C,X( 1),12,0xe8c7b756L); HOST_c2l(data,l); X( 3)=l;
113  R0(C,D,A,B,X( 2),17,0x242070dbL); HOST_c2l(data,l); X( 4)=l;
114  R0(B,C,D,A,X( 3),22,0xc1bdceeeL); HOST_c2l(data,l); X( 5)=l;
115  R0(A,B,C,D,X( 4), 7,0xf57c0fafL); HOST_c2l(data,l); X( 6)=l;
116  R0(D,A,B,C,X( 5),12,0x4787c62aL); HOST_c2l(data,l); X( 7)=l;
117  R0(C,D,A,B,X( 6),17,0xa8304613L); HOST_c2l(data,l); X( 8)=l;
118  R0(B,C,D,A,X( 7),22,0xfd469501L); HOST_c2l(data,l); X( 9)=l;
119  R0(A,B,C,D,X( 8), 7,0x698098d8L); HOST_c2l(data,l); X(10)=l;
120  R0(D,A,B,C,X( 9),12,0x8b44f7afL); HOST_c2l(data,l); X(11)=l;
121  R0(C,D,A,B,X(10),17,0xffff5bb1L); HOST_c2l(data,l); X(12)=l;
122  R0(B,C,D,A,X(11),22,0x895cd7beL); HOST_c2l(data,l); X(13)=l;
123  R0(A,B,C,D,X(12), 7,0x6b901122L); HOST_c2l(data,l); X(14)=l;
124  R0(D,A,B,C,X(13),12,0xfd987193L); HOST_c2l(data,l); X(15)=l;
125  R0(C,D,A,B,X(14),17,0xa679438eL);
126  R0(B,C,D,A,X(15),22,0x49b40821L);
127  /* Round 1 */
128  R1(A,B,C,D,X( 1), 5,0xf61e2562L);
129  R1(D,A,B,C,X( 6), 9,0xc040b340L);
130  R1(C,D,A,B,X(11),14,0x265e5a51L);
131  R1(B,C,D,A,X( 0),20,0xe9b6c7aaL);
132  R1(A,B,C,D,X( 5), 5,0xd62f105dL);
133  R1(D,A,B,C,X(10), 9,0x02441453L);
134  R1(C,D,A,B,X(15),14,0xd8a1e681L);
135  R1(B,C,D,A,X( 4),20,0xe7d3fbc8L);
136  R1(A,B,C,D,X( 9), 5,0x21e1cde6L);
137  R1(D,A,B,C,X(14), 9,0xc33707d6L);
138  R1(C,D,A,B,X( 3),14,0xf4d50d87L);
139  R1(B,C,D,A,X( 8),20,0x455a14edL);
140  R1(A,B,C,D,X(13), 5,0xa9e3e905L);
141  R1(D,A,B,C,X( 2), 9,0xfcefa3f8L);
142  R1(C,D,A,B,X( 7),14,0x676f02d9L);
143  R1(B,C,D,A,X(12),20,0x8d2a4c8aL);
144  /* Round 2 */
145  R2(A,B,C,D,X( 5), 4,0xfffa3942L);
146  R2(D,A,B,C,X( 8),11,0x8771f681L);
147  R2(C,D,A,B,X(11),16,0x6d9d6122L);
148  R2(B,C,D,A,X(14),23,0xfde5380cL);
149  R2(A,B,C,D,X( 1), 4,0xa4beea44L);
150  R2(D,A,B,C,X( 4),11,0x4bdecfa9L);
151  R2(C,D,A,B,X( 7),16,0xf6bb4b60L);
152  R2(B,C,D,A,X(10),23,0xbebfbc70L);
153  R2(A,B,C,D,X(13), 4,0x289b7ec6L);
154  R2(D,A,B,C,X( 0),11,0xeaa127faL);
155  R2(C,D,A,B,X( 3),16,0xd4ef3085L);
156  R2(B,C,D,A,X( 6),23,0x04881d05L);
157  R2(A,B,C,D,X( 9), 4,0xd9d4d039L);
158  R2(D,A,B,C,X(12),11,0xe6db99e5L);
159  R2(C,D,A,B,X(15),16,0x1fa27cf8L);
160  R2(B,C,D,A,X( 2),23,0xc4ac5665L);
161  /* Round 3 */
162  R3(A,B,C,D,X( 0), 6,0xf4292244L);
163  R3(D,A,B,C,X( 7),10,0x432aff97L);
164  R3(C,D,A,B,X(14),15,0xab9423a7L);
165  R3(B,C,D,A,X( 5),21,0xfc93a039L);
166  R3(A,B,C,D,X(12), 6,0x655b59c3L);
167  R3(D,A,B,C,X( 3),10,0x8f0ccc92L);
168  R3(C,D,A,B,X(10),15,0xffeff47dL);
169  R3(B,C,D,A,X( 1),21,0x85845dd1L);
170  R3(A,B,C,D,X( 8), 6,0x6fa87e4fL);
171  R3(D,A,B,C,X(15),10,0xfe2ce6e0L);
172  R3(C,D,A,B,X( 6),15,0xa3014314L);
173  R3(B,C,D,A,X(13),21,0x4e0811a1L);
174  R3(A,B,C,D,X( 4), 6,0xf7537e82L);
175  R3(D,A,B,C,X(11),10,0xbd3af235L);
176  R3(C,D,A,B,X( 2),15,0x2ad7d2bbL);
177  R3(B,C,D,A,X( 9),21,0xeb86d391L);
178 
179  A = c->A += A;
180  B = c->B += B;
181  C = c->C += C;
182  D = c->D += D;
183  }
184  }
185 #endif