1 /* crypto/mdc2/mdc2dgst.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
62 #include <openssl/des.h>
63 #include <openssl/mdc2.h>
64 #include <openssl/err.h>
66 # include <openssl/fips.h>
70 #define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \
71 l|=((DES_LONG)(*((c)++)))<< 8L, \
72 l|=((DES_LONG)(*((c)++)))<<16L, \
73 l|=((DES_LONG)(*((c)++)))<<24L)
76 #define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
77 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
78 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
79 *((c)++)=(unsigned char)(((l)>>24L)&0xff))
81 static void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len);
82 FIPS_NON_FIPS_MD_Init(MDC2)
86 memset(&(c->h[0]), 0x52, MDC2_BLOCK);
87 memset(&(c->hh[0]), 0x25, MDC2_BLOCK);
91 int MDC2_Update(MDC2_CTX *c, const unsigned char *in, size_t len)
97 if (i + len < MDC2_BLOCK) {
99 memcpy(&(c->data[i]), in, len);
105 memcpy(&(c->data[i]), in, j);
109 mdc2_body(c, &(c->data[0]), MDC2_BLOCK);
112 i = len & ~((size_t)MDC2_BLOCK - 1);
117 memcpy(&(c->data[0]), &(in[i]), j);
123 static void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len)
125 register DES_LONG tin0, tin1;
126 register DES_LONG ttin0, ttin1;
127 DES_LONG d[2], dd[2];
132 for (i = 0; i < len; i += 8) {
137 c->h[0] = (c->h[0] & 0x9f) | 0x40;
138 c->hh[0] = (c->hh[0] & 0x9f) | 0x20;
140 DES_set_odd_parity(&c->h);
141 DES_set_key_unchecked(&c->h, &k);
142 DES_encrypt1(d, &k, 1);
144 DES_set_odd_parity(&c->hh);
145 DES_set_key_unchecked(&c->hh, &k);
146 DES_encrypt1(dd, &k, 1);
148 ttin0 = tin0 ^ dd[0];
149 ttin1 = tin1 ^ dd[1];
162 int MDC2_Final(unsigned char *md, MDC2_CTX *c)
169 if ((i > 0) || (j == 2)) {
172 memset(&(c->data[i]), 0, MDC2_BLOCK - i);
173 mdc2_body(c, c->data, MDC2_BLOCK);
175 memcpy(md, (char *)c->h, MDC2_BLOCK);
176 memcpy(&(md[MDC2_BLOCK]), (char *)c->hh, MDC2_BLOCK);
185 unsigned char md[MDC2_DIGEST_LENGTH];
188 static char *text = "Now is the time for all ";
191 MDC2_Update(&c, text, strlen(text));
192 MDC2_Final(&(md[0]), &c);
194 for (i = 0; i < MDC2_DIGEST_LENGTH; i++)
195 printf("%02X", md[i]);