1 /* crypto/md2/md2_dgst.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.]
65 const char *MD2_version="MD2" OPENSSL_VERSION_PTEXT;
67 /* Implemented from RFC1319 The MD2 Message-Digest Algorithm
70 #define UCHAR unsigned char
73 static void md2_block(MD2_CTX *c, unsigned char *d);
75 static void md2_block();
78 /* The magic S table - I have converted it to hex since it is
79 * basicaly just a random byte string. */
80 static MD2_INT S[256]={
81 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01,
82 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13,
83 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C,
84 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA,
85 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16,
86 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12,
87 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49,
88 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A,
89 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F,
90 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21,
91 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27,
92 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03,
93 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1,
94 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6,
95 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6,
96 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1,
97 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20,
98 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02,
99 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6,
100 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F,
101 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A,
102 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26,
103 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09,
104 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52,
105 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA,
106 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A,
107 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D,
108 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39,
109 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4,
110 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A,
111 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A,
112 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14,
115 const char *MD2_options(void)
117 if (sizeof(MD2_INT) == 1)
123 void MD2_Init(MD2_CTX *c)
126 memset(c->state,0,MD2_BLOCK*sizeof(MD2_INT));
127 memset(c->cksm,0,MD2_BLOCK*sizeof(MD2_INT));
128 memset(c->data,0,MD2_BLOCK);
131 void MD2_Update(MD2_CTX *c, register unsigned char *data, unsigned long len)
135 if (len == 0) return;
140 if ((c->num+len) >= MD2_BLOCK)
142 memcpy(&(p[c->num]),data,MD2_BLOCK-c->num);
143 md2_block(c,c->data);
144 data+=(MD2_BLOCK - c->num);
145 len-=(MD2_BLOCK - c->num);
147 /* drop through and do the rest */
151 memcpy(&(p[c->num]),data,(int)len);
157 /* we now can process the input data in blocks of MD2_BLOCK
158 * chars and save the leftovers to c->data. */
159 while (len >= MD2_BLOCK)
165 memcpy(p,data,(int)len);
169 static void md2_block(MD2_CTX *c, unsigned char *d)
171 register MD2_INT t,*sp1,*sp2;
182 state[i+32]=(t^sp1[i]);
188 for (j=0; j<48; j+=8)
190 t= state[j+ 0]^=S[t];
191 t= state[j+ 1]^=S[t];
192 t= state[j+ 2]^=S[t];
193 t= state[j+ 3]^=S[t];
194 t= state[j+ 4]^=S[t];
195 t= state[j+ 5]^=S[t];
196 t= state[j+ 6]^=S[t];
197 t= state[j+ 7]^=S[t];
201 memcpy(sp1,state,16*sizeof(MD2_INT));
202 memset(state,0,48*sizeof(MD2_INT));
205 void MD2_Final(unsigned char *md, MD2_CTX *c)
209 register MD2_INT *p1,*p2;
215 for (i=c->num; i<MD2_BLOCK; i++)
220 for (i=0; i<MD2_BLOCK; i++)
225 md[i]=(UCHAR)(p1[i]&0xff);
226 memset((char *)&c,0,sizeof(c));