md4_dgst.c revision 296341 
1/* crypto/md4/md4_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 <openssl/opensslv.h>
61#include <openssl/crypto.h>
62#include "md4_locl.h"
63
64const char MD4_version[] = "MD4" OPENSSL_VERSION_PTEXT;
65
66/*
67 * Implemented from RFC1186 The MD4 Message-Digest Algorithm
68 */
69
70#define INIT_DATA_A (unsigned long)0x67452301L
71#define INIT_DATA_B (unsigned long)0xefcdab89L
72#define INIT_DATA_C (unsigned long)0x98badcfeL
73#define INIT_DATA_D (unsigned long)0x10325476L
74
75fips_md_init(MD4)
76{
77    memset(c, 0, sizeof(*c));
78    c->A = INIT_DATA_A;
79    c->B = INIT_DATA_B;
80    c->C = INIT_DATA_C;
81    c->D = INIT_DATA_D;
82    return 1;
83}
84
85#ifndef md4_block_data_order
86# ifdef X
87#  undef X
88# endif
89void md4_block_data_order(MD4_CTX *c, const void *data_, size_t num)
90{
91    const unsigned char *data = data_;
92    register unsigned MD32_REG_T A, B, C, D, l;
93# ifndef MD32_XARRAY
94    /* See comment in crypto/sha/sha_locl.h for details. */
95    unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
96        XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
97#  define X(i)   XX##i
98# else
99    MD4_LONG XX[MD4_LBLOCK];
100#  define X(i)   XX[i]
101# endif
102
103    A = c->A;
104    B = c->B;
105    C = c->C;
106    D = c->D;
107
108    for (; num--;) {
109        (void)HOST_c2l(data, l);
110        X(0) = l;
111        (void)HOST_c2l(data, l);
112        X(1) = l;
113        /* Round 0 */
114        R0(A, B, C, D, X(0), 3, 0);
115        (void)HOST_c2l(data, l);
116        X(2) = l;
117        R0(D, A, B, C, X(1), 7, 0);
118        (void)HOST_c2l(data, l);
119        X(3) = l;
120        R0(C, D, A, B, X(2), 11, 0);
121        (void)HOST_c2l(data, l);
122        X(4) = l;
123        R0(B, C, D, A, X(3), 19, 0);
124        (void)HOST_c2l(data, l);
125        X(5) = l;
126        R0(A, B, C, D, X(4), 3, 0);
127        (void)HOST_c2l(data, l);
128        X(6) = l;
129        R0(D, A, B, C, X(5), 7, 0);
130        (void)HOST_c2l(data, l);
131        X(7) = l;
132        R0(C, D, A, B, X(6), 11, 0);
133        (void)HOST_c2l(data, l);
134        X(8) = l;
135        R0(B, C, D, A, X(7), 19, 0);
136        (void)HOST_c2l(data, l);
137        X(9) = l;
138        R0(A, B, C, D, X(8), 3, 0);
139        (void)HOST_c2l(data, l);
140        X(10) = l;
141        R0(D, A, B, C, X(9), 7, 0);
142        (void)HOST_c2l(data, l);
143        X(11) = l;
144        R0(C, D, A, B, X(10), 11, 0);
145        (void)HOST_c2l(data, l);
146        X(12) = l;
147        R0(B, C, D, A, X(11), 19, 0);
148        (void)HOST_c2l(data, l);
149        X(13) = l;
150        R0(A, B, C, D, X(12), 3, 0);
151        (void)HOST_c2l(data, l);
152        X(14) = l;
153        R0(D, A, B, C, X(13), 7, 0);
154        (void)HOST_c2l(data, l);
155        X(15) = l;
156        R0(C, D, A, B, X(14), 11, 0);
157        R0(B, C, D, A, X(15), 19, 0);
158        /* Round 1 */
159        R1(A, B, C, D, X(0), 3, 0x5A827999L);
160        R1(D, A, B, C, X(4), 5, 0x5A827999L);
161        R1(C, D, A, B, X(8), 9, 0x5A827999L);
162        R1(B, C, D, A, X(12), 13, 0x5A827999L);
163        R1(A, B, C, D, X(1), 3, 0x5A827999L);
164        R1(D, A, B, C, X(5), 5, 0x5A827999L);
165        R1(C, D, A, B, X(9), 9, 0x5A827999L);
166        R1(B, C, D, A, X(13), 13, 0x5A827999L);
167        R1(A, B, C, D, X(2), 3, 0x5A827999L);
168        R1(D, A, B, C, X(6), 5, 0x5A827999L);
169        R1(C, D, A, B, X(10), 9, 0x5A827999L);
170        R1(B, C, D, A, X(14), 13, 0x5A827999L);
171        R1(A, B, C, D, X(3), 3, 0x5A827999L);
172        R1(D, A, B, C, X(7), 5, 0x5A827999L);
173        R1(C, D, A, B, X(11), 9, 0x5A827999L);
174        R1(B, C, D, A, X(15), 13, 0x5A827999L);
175        /* Round 2 */
176        R2(A, B, C, D, X(0), 3, 0x6ED9EBA1L);
177        R2(D, A, B, C, X(8), 9, 0x6ED9EBA1L);
178        R2(C, D, A, B, X(4), 11, 0x6ED9EBA1L);
179        R2(B, C, D, A, X(12), 15, 0x6ED9EBA1L);
180        R2(A, B, C, D, X(2), 3, 0x6ED9EBA1L);
181        R2(D, A, B, C, X(10), 9, 0x6ED9EBA1L);
182        R2(C, D, A, B, X(6), 11, 0x6ED9EBA1L);
183        R2(B, C, D, A, X(14), 15, 0x6ED9EBA1L);
184        R2(A, B, C, D, X(1), 3, 0x6ED9EBA1L);
185        R2(D, A, B, C, X(9), 9, 0x6ED9EBA1L);
186        R2(C, D, A, B, X(5), 11, 0x6ED9EBA1L);
187        R2(B, C, D, A, X(13), 15, 0x6ED9EBA1L);
188        R2(A, B, C, D, X(3), 3, 0x6ED9EBA1L);
189        R2(D, A, B, C, X(11), 9, 0x6ED9EBA1L);
190        R2(C, D, A, B, X(7), 11, 0x6ED9EBA1L);
191        R2(B, C, D, A, X(15), 15, 0x6ED9EBA1L);
192
193        A = c->A += A;
194        B = c->B += B;
195        C = c->C += C;
196        D = c->D += D;
197    }
198}
199#endif
200