md4_dgst.c 6.2 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
/* crypto/md4/md4_dgst.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include "md4_locl.h"
#include <openssl/opensslv.h>

63
const char MD4_version[]="MD4" OPENSSL_VERSION_PTEXT;
64 65 66 67 68 69 70 71 72

/* Implemented from RFC1186 The MD4 Message-Digest Algorithm
 */

#define INIT_DATA_A (unsigned long)0x67452301L
#define INIT_DATA_B (unsigned long)0xefcdab89L
#define INIT_DATA_C (unsigned long)0x98badcfeL
#define INIT_DATA_D (unsigned long)0x10325476L

D
 
Dr. Stephen Henson 已提交
73
int MD4_Init(MD4_CTX *c)
74
	{
75
	memset (c,0,sizeof(*c));
76 77 78 79
	c->A=INIT_DATA_A;
	c->B=INIT_DATA_B;
	c->C=INIT_DATA_C;
	c->D=INIT_DATA_D;
D
 
Dr. Stephen Henson 已提交
80
	return 1;
81 82 83 84 85 86
	}

#ifndef md4_block_data_order
#ifdef X
#undef X
#endif
87
void md4_block_data_order (MD4_CTX *c, const void *data_, size_t num)
88 89
	{
	const unsigned char *data=data_;
A
Andy Polyakov 已提交
90
	register unsigned MD32_REG_T A,B,C,D,l;
91 92
#ifndef MD32_XARRAY
	/* See comment in crypto/sha/sha_locl.h for details. */
A
Andy Polyakov 已提交
93 94
	unsigned MD32_REG_T	XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
				XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
# define X(i)	XX##i
#else
	MD4_LONG XX[MD4_LBLOCK];
# define X(i)	XX[i]
#endif

	A=c->A;
	B=c->B;
	C=c->C;
	D=c->D;

	for (;num--;)
		{
	HOST_c2l(data,l); X( 0)=l;		HOST_c2l(data,l); X( 1)=l;
	/* Round 0 */
	R0(A,B,C,D,X( 0), 3,0);	HOST_c2l(data,l); X( 2)=l;
	R0(D,A,B,C,X( 1), 7,0);	HOST_c2l(data,l); X( 3)=l;
	R0(C,D,A,B,X( 2),11,0);	HOST_c2l(data,l); X( 4)=l;
	R0(B,C,D,A,X( 3),19,0);	HOST_c2l(data,l); X( 5)=l;
	R0(A,B,C,D,X( 4), 3,0);	HOST_c2l(data,l); X( 6)=l;
	R0(D,A,B,C,X( 5), 7,0);	HOST_c2l(data,l); X( 7)=l;
	R0(C,D,A,B,X( 6),11,0);	HOST_c2l(data,l); X( 8)=l;
	R0(B,C,D,A,X( 7),19,0);	HOST_c2l(data,l); X( 9)=l;
	R0(A,B,C,D,X( 8), 3,0);	HOST_c2l(data,l); X(10)=l;
	R0(D,A,B,C,X( 9), 7,0);	HOST_c2l(data,l); X(11)=l;
	R0(C,D,A,B,X(10),11,0);	HOST_c2l(data,l); X(12)=l;
	R0(B,C,D,A,X(11),19,0);	HOST_c2l(data,l); X(13)=l;
	R0(A,B,C,D,X(12), 3,0);	HOST_c2l(data,l); X(14)=l;
	R0(D,A,B,C,X(13), 7,0);	HOST_c2l(data,l); X(15)=l;
	R0(C,D,A,B,X(14),11,0);
	R0(B,C,D,A,X(15),19,0);
	/* Round 1 */
	R1(A,B,C,D,X( 0), 3,0x5A827999L);
	R1(D,A,B,C,X( 4), 5,0x5A827999L);
	R1(C,D,A,B,X( 8), 9,0x5A827999L);
	R1(B,C,D,A,X(12),13,0x5A827999L);
	R1(A,B,C,D,X( 1), 3,0x5A827999L);
	R1(D,A,B,C,X( 5), 5,0x5A827999L);
	R1(C,D,A,B,X( 9), 9,0x5A827999L);
	R1(B,C,D,A,X(13),13,0x5A827999L);
	R1(A,B,C,D,X( 2), 3,0x5A827999L);
	R1(D,A,B,C,X( 6), 5,0x5A827999L);
	R1(C,D,A,B,X(10), 9,0x5A827999L);
	R1(B,C,D,A,X(14),13,0x5A827999L);
	R1(A,B,C,D,X( 3), 3,0x5A827999L);
	R1(D,A,B,C,X( 7), 5,0x5A827999L);
	R1(C,D,A,B,X(11), 9,0x5A827999L);
	R1(B,C,D,A,X(15),13,0x5A827999L);
	/* Round 2 */
	R2(A,B,C,D,X( 0), 3,0x6ED9EBA1L);
	R2(D,A,B,C,X( 8), 9,0x6ED9EBA1L);
	R2(C,D,A,B,X( 4),11,0x6ED9EBA1L);
	R2(B,C,D,A,X(12),15,0x6ED9EBA1L);
	R2(A,B,C,D,X( 2), 3,0x6ED9EBA1L);
	R2(D,A,B,C,X(10), 9,0x6ED9EBA1L);
	R2(C,D,A,B,X( 6),11,0x6ED9EBA1L);
	R2(B,C,D,A,X(14),15,0x6ED9EBA1L);
	R2(A,B,C,D,X( 1), 3,0x6ED9EBA1L);
	R2(D,A,B,C,X( 9), 9,0x6ED9EBA1L);
	R2(C,D,A,B,X( 5),11,0x6ED9EBA1L);
	R2(B,C,D,A,X(13),15,0x6ED9EBA1L);
	R2(A,B,C,D,X( 3), 3,0x6ED9EBA1L);
	R2(D,A,B,C,X(11), 9,0x6ED9EBA1L);
	R2(C,D,A,B,X( 7),11,0x6ED9EBA1L);
	R2(B,C,D,A,X(15),15,0x6ED9EBA1L);

	A = c->A += A;
	B = c->B += B;
	C = c->C += C;
	D = c->D += D;
		}
	}
#endif