md5_dgst.c revision 296465
1/* crypto/md5/md5_dgst.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
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 (tjh@cryptsoft.com).
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 (eay@cryptsoft.com)"
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 (tjh@cryptsoft.com)"
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/err.h>
63#ifdef OPENSSL_FIPS
64# include <openssl/fips.h>
65#endif
66
67const char MD5_version[] = "MD5" OPENSSL_VERSION_PTEXT;
68
69/*
70 * Implemented from RFC1321 The MD5 Message-Digest Algorithm
71 */
72
73#define INIT_DATA_A (unsigned long)0x67452301L
74#define INIT_DATA_B (unsigned long)0xefcdab89L
75#define INIT_DATA_C (unsigned long)0x98badcfeL
76#define INIT_DATA_D (unsigned long)0x10325476L
77
78FIPS_NON_FIPS_MD_Init(MD5)
79{
80    c->A = INIT_DATA_A;
81    c->B = INIT_DATA_B;
82    c->C = INIT_DATA_C;
83    c->D = INIT_DATA_D;
84    c->Nl = 0;
85    c->Nh = 0;
86    c->num = 0;
87    return 1;
88}
89
90#ifndef md5_block_data_order
91# ifdef X
92#  undef X
93# endif
94void md5_block_data_order(MD5_CTX *c, const void *data_, size_t num)
95{
96    const unsigned char *data = data_;
97    register unsigned MD32_REG_T A, B, C, D, l;
98# ifndef MD32_XARRAY
99    /* See comment in crypto/sha/sha_locl.h for details. */
100    unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
101        XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
102#  define X(i)   XX##i
103# else
104    MD5_LONG XX[MD5_LBLOCK];
105#  define X(i)   XX[i]
106# endif
107
108    A = c->A;
109    B = c->B;
110    C = c->C;
111    D = c->D;
112
113    for (; num--;) {
114        HOST_c2l(data, l);
115        X(0) = l;
116        HOST_c2l(data, l);
117        X(1) = l;
118        /* Round 0 */
119        R0(A, B, C, D, X(0), 7, 0xd76aa478L);
120        HOST_c2l(data, l);
121        X(2) = l;
122        R0(D, A, B, C, X(1), 12, 0xe8c7b756L);
123        HOST_c2l(data, l);
124        X(3) = l;
125        R0(C, D, A, B, X(2), 17, 0x242070dbL);
126        HOST_c2l(data, l);
127        X(4) = l;
128        R0(B, C, D, A, X(3), 22, 0xc1bdceeeL);
129        HOST_c2l(data, l);
130        X(5) = l;
131        R0(A, B, C, D, X(4), 7, 0xf57c0fafL);
132        HOST_c2l(data, l);
133        X(6) = l;
134        R0(D, A, B, C, X(5), 12, 0x4787c62aL);
135        HOST_c2l(data, l);
136        X(7) = l;
137        R0(C, D, A, B, X(6), 17, 0xa8304613L);
138        HOST_c2l(data, l);
139        X(8) = l;
140        R0(B, C, D, A, X(7), 22, 0xfd469501L);
141        HOST_c2l(data, l);
142        X(9) = l;
143        R0(A, B, C, D, X(8), 7, 0x698098d8L);
144        HOST_c2l(data, l);
145        X(10) = l;
146        R0(D, A, B, C, X(9), 12, 0x8b44f7afL);
147        HOST_c2l(data, l);
148        X(11) = l;
149        R0(C, D, A, B, X(10), 17, 0xffff5bb1L);
150        HOST_c2l(data, l);
151        X(12) = l;
152        R0(B, C, D, A, X(11), 22, 0x895cd7beL);
153        HOST_c2l(data, l);
154        X(13) = l;
155        R0(A, B, C, D, X(12), 7, 0x6b901122L);
156        HOST_c2l(data, l);
157        X(14) = l;
158        R0(D, A, B, C, X(13), 12, 0xfd987193L);
159        HOST_c2l(data, l);
160        X(15) = l;
161        R0(C, D, A, B, X(14), 17, 0xa679438eL);
162        R0(B, C, D, A, X(15), 22, 0x49b40821L);
163        /* Round 1 */
164        R1(A, B, C, D, X(1), 5, 0xf61e2562L);
165        R1(D, A, B, C, X(6), 9, 0xc040b340L);
166        R1(C, D, A, B, X(11), 14, 0x265e5a51L);
167        R1(B, C, D, A, X(0), 20, 0xe9b6c7aaL);
168        R1(A, B, C, D, X(5), 5, 0xd62f105dL);
169        R1(D, A, B, C, X(10), 9, 0x02441453L);
170        R1(C, D, A, B, X(15), 14, 0xd8a1e681L);
171        R1(B, C, D, A, X(4), 20, 0xe7d3fbc8L);
172        R1(A, B, C, D, X(9), 5, 0x21e1cde6L);
173        R1(D, A, B, C, X(14), 9, 0xc33707d6L);
174        R1(C, D, A, B, X(3), 14, 0xf4d50d87L);
175        R1(B, C, D, A, X(8), 20, 0x455a14edL);
176        R1(A, B, C, D, X(13), 5, 0xa9e3e905L);
177        R1(D, A, B, C, X(2), 9, 0xfcefa3f8L);
178        R1(C, D, A, B, X(7), 14, 0x676f02d9L);
179        R1(B, C, D, A, X(12), 20, 0x8d2a4c8aL);
180        /* Round 2 */
181        R2(A, B, C, D, X(5), 4, 0xfffa3942L);
182        R2(D, A, B, C, X(8), 11, 0x8771f681L);
183        R2(C, D, A, B, X(11), 16, 0x6d9d6122L);
184        R2(B, C, D, A, X(14), 23, 0xfde5380cL);
185        R2(A, B, C, D, X(1), 4, 0xa4beea44L);
186        R2(D, A, B, C, X(4), 11, 0x4bdecfa9L);
187        R2(C, D, A, B, X(7), 16, 0xf6bb4b60L);
188        R2(B, C, D, A, X(10), 23, 0xbebfbc70L);
189        R2(A, B, C, D, X(13), 4, 0x289b7ec6L);
190        R2(D, A, B, C, X(0), 11, 0xeaa127faL);
191        R2(C, D, A, B, X(3), 16, 0xd4ef3085L);
192        R2(B, C, D, A, X(6), 23, 0x04881d05L);
193        R2(A, B, C, D, X(9), 4, 0xd9d4d039L);
194        R2(D, A, B, C, X(12), 11, 0xe6db99e5L);
195        R2(C, D, A, B, X(15), 16, 0x1fa27cf8L);
196        R2(B, C, D, A, X(2), 23, 0xc4ac5665L);
197        /* Round 3 */
198        R3(A, B, C, D, X(0), 6, 0xf4292244L);
199        R3(D, A, B, C, X(7), 10, 0x432aff97L);
200        R3(C, D, A, B, X(14), 15, 0xab9423a7L);
201        R3(B, C, D, A, X(5), 21, 0xfc93a039L);
202        R3(A, B, C, D, X(12), 6, 0x655b59c3L);
203        R3(D, A, B, C, X(3), 10, 0x8f0ccc92L);
204        R3(C, D, A, B, X(10), 15, 0xffeff47dL);
205        R3(B, C, D, A, X(1), 21, 0x85845dd1L);
206        R3(A, B, C, D, X(8), 6, 0x6fa87e4fL);
207        R3(D, A, B, C, X(15), 10, 0xfe2ce6e0L);
208        R3(C, D, A, B, X(6), 15, 0xa3014314L);
209        R3(B, C, D, A, X(13), 21, 0x4e0811a1L);
210        R3(A, B, C, D, X(4), 6, 0xf7537e82L);
211        R3(D, A, B, C, X(11), 10, 0xbd3af235L);
212        R3(C, D, A, B, X(2), 15, 0x2ad7d2bbL);
213        R3(B, C, D, A, X(9), 21, 0xeb86d391L);
214
215        A = c->A += A;
216        B = c->B += B;
217        C = c->C += C;
218        D = c->D += D;
219    }
220}
221#endif
222