155714Skris/* crypto/mdc2/mdc2dgst.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8296465Sdelphij * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15296465Sdelphij * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22296465Sdelphij * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37296465Sdelphij * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40296465Sdelphij * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52296465Sdelphij * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include <stdlib.h> 6155714Skris#include <string.h> 6255714Skris#include <openssl/des.h> 6355714Skris#include <openssl/mdc2.h> 64194206Ssimon#include <openssl/err.h> 65194206Ssimon#ifdef OPENSSL_FIPS 66296465Sdelphij# include <openssl/fips.h> 67194206Ssimon#endif 6855714Skris 6955714Skris#undef c2l 70296465Sdelphij#define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ 71296465Sdelphij l|=((DES_LONG)(*((c)++)))<< 8L, \ 72296465Sdelphij l|=((DES_LONG)(*((c)++)))<<16L, \ 73296465Sdelphij l|=((DES_LONG)(*((c)++)))<<24L) 7455714Skris 7555714Skris#undef l2c 76296465Sdelphij#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 77296465Sdelphij *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 78296465Sdelphij *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 79296465Sdelphij *((c)++)=(unsigned char)(((l)>>24L)&0xff)) 8055714Skris 81160814Ssimonstatic void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len); 82194206SsimonFIPS_NON_FIPS_MD_Init(MDC2) 83296465Sdelphij{ 84296465Sdelphij c->num = 0; 85296465Sdelphij c->pad_type = 1; 86296465Sdelphij memset(&(c->h[0]), 0x52, MDC2_BLOCK); 87296465Sdelphij memset(&(c->hh[0]), 0x25, MDC2_BLOCK); 88296465Sdelphij return 1; 89296465Sdelphij} 9055714Skris 91160814Ssimonint MDC2_Update(MDC2_CTX *c, const unsigned char *in, size_t len) 92296465Sdelphij{ 93296465Sdelphij size_t i, j; 9455714Skris 95296465Sdelphij i = c->num; 96296465Sdelphij if (i != 0) { 97306230Sdelphij if (len < MDC2_BLOCK - i) { 98296465Sdelphij /* partial block */ 99296465Sdelphij memcpy(&(c->data[i]), in, len); 100296465Sdelphij c->num += (int)len; 101296465Sdelphij return 1; 102296465Sdelphij } else { 103296465Sdelphij /* filled one */ 104296465Sdelphij j = MDC2_BLOCK - i; 105296465Sdelphij memcpy(&(c->data[i]), in, j); 106296465Sdelphij len -= j; 107296465Sdelphij in += j; 108296465Sdelphij c->num = 0; 109296465Sdelphij mdc2_body(c, &(c->data[0]), MDC2_BLOCK); 110296465Sdelphij } 111296465Sdelphij } 112296465Sdelphij i = len & ~((size_t)MDC2_BLOCK - 1); 113296465Sdelphij if (i > 0) 114296465Sdelphij mdc2_body(c, in, i); 115296465Sdelphij j = len - i; 116296465Sdelphij if (j > 0) { 117296465Sdelphij memcpy(&(c->data[0]), &(in[i]), j); 118296465Sdelphij c->num = (int)j; 119296465Sdelphij } 120296465Sdelphij return 1; 121296465Sdelphij} 12255714Skris 123160814Ssimonstatic void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len) 124296465Sdelphij{ 125296465Sdelphij register DES_LONG tin0, tin1; 126296465Sdelphij register DES_LONG ttin0, ttin1; 127296465Sdelphij DES_LONG d[2], dd[2]; 128296465Sdelphij DES_key_schedule k; 129296465Sdelphij unsigned char *p; 130296465Sdelphij size_t i; 13155714Skris 132296465Sdelphij for (i = 0; i < len; i += 8) { 133296465Sdelphij c2l(in, tin0); 134296465Sdelphij d[0] = dd[0] = tin0; 135296465Sdelphij c2l(in, tin1); 136296465Sdelphij d[1] = dd[1] = tin1; 137296465Sdelphij c->h[0] = (c->h[0] & 0x9f) | 0x40; 138296465Sdelphij c->hh[0] = (c->hh[0] & 0x9f) | 0x20; 13955714Skris 140296465Sdelphij DES_set_odd_parity(&c->h); 141296465Sdelphij DES_set_key_unchecked(&c->h, &k); 142296465Sdelphij DES_encrypt1(d, &k, 1); 14355714Skris 144296465Sdelphij DES_set_odd_parity(&c->hh); 145296465Sdelphij DES_set_key_unchecked(&c->hh, &k); 146296465Sdelphij DES_encrypt1(dd, &k, 1); 14755714Skris 148296465Sdelphij ttin0 = tin0 ^ dd[0]; 149296465Sdelphij ttin1 = tin1 ^ dd[1]; 150296465Sdelphij tin0 ^= d[0]; 151296465Sdelphij tin1 ^= d[1]; 15255714Skris 153296465Sdelphij p = c->h; 154296465Sdelphij l2c(tin0, p); 155296465Sdelphij l2c(ttin1, p); 156296465Sdelphij p = c->hh; 157296465Sdelphij l2c(ttin0, p); 158296465Sdelphij l2c(tin1, p); 159296465Sdelphij } 160296465Sdelphij} 16155714Skris 162109998Smarkmint MDC2_Final(unsigned char *md, MDC2_CTX *c) 163296465Sdelphij{ 164296465Sdelphij unsigned int i; 165296465Sdelphij int j; 16655714Skris 167296465Sdelphij i = c->num; 168296465Sdelphij j = c->pad_type; 169296465Sdelphij if ((i > 0) || (j == 2)) { 170296465Sdelphij if (j == 2) 171296465Sdelphij c->data[i++] = 0x80; 172296465Sdelphij memset(&(c->data[i]), 0, MDC2_BLOCK - i); 173296465Sdelphij mdc2_body(c, c->data, MDC2_BLOCK); 174296465Sdelphij } 175296465Sdelphij memcpy(md, (char *)c->h, MDC2_BLOCK); 176296465Sdelphij memcpy(&(md[MDC2_BLOCK]), (char *)c->hh, MDC2_BLOCK); 177296465Sdelphij return 1; 178296465Sdelphij} 17955714Skris 18055714Skris#undef TEST 18155714Skris 18255714Skris#ifdef TEST 18355714Skrismain() 184296465Sdelphij{ 185296465Sdelphij unsigned char md[MDC2_DIGEST_LENGTH]; 186296465Sdelphij int i; 187296465Sdelphij MDC2_CTX c; 188296465Sdelphij static char *text = "Now is the time for all "; 18955714Skris 190296465Sdelphij MDC2_Init(&c); 191296465Sdelphij MDC2_Update(&c, text, strlen(text)); 192296465Sdelphij MDC2_Final(&(md[0]), &c); 19355714Skris 194296465Sdelphij for (i = 0; i < MDC2_DIGEST_LENGTH; i++) 195296465Sdelphij printf("%02X", md[i]); 196296465Sdelphij printf("\n"); 197296465Sdelphij} 19855714Skris 19955714Skris#endif 200