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168 lines
6.2 KiB
168 lines
6.2 KiB
14 years ago
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/* crypto/md4/md4_dgst.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "md4_locl.h"
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#include <openssl/opensslv.h>
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const char MD4_version[]="MD4" OPENSSL_VERSION_PTEXT;
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/* Implemented from RFC1186 The MD4 Message-Digest Algorithm
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*/
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#define INIT_DATA_A (unsigned long)0x67452301L
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#define INIT_DATA_B (unsigned long)0xefcdab89L
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#define INIT_DATA_C (unsigned long)0x98badcfeL
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#define INIT_DATA_D (unsigned long)0x10325476L
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int MD4_Init(MD4_CTX *c)
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{
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memset (c,0,sizeof(*c));
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c->A=INIT_DATA_A;
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c->B=INIT_DATA_B;
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c->C=INIT_DATA_C;
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c->D=INIT_DATA_D;
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return 1;
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}
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#ifndef md4_block_data_order
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#ifdef X
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#undef X
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#endif
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void md4_block_data_order (MD4_CTX *c, const void *data_, size_t num)
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{
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const unsigned char *data=data_;
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register unsigned MD32_REG_T A,B,C,D,l;
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#ifndef MD32_XARRAY
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/* See comment in crypto/sha/sha_locl.h for details. */
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unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
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XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
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# define X(i) XX##i
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#else
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MD4_LONG XX[MD4_LBLOCK];
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# define X(i) XX[i]
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#endif
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A=c->A;
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B=c->B;
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C=c->C;
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D=c->D;
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for (;num--;)
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{
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HOST_c2l(data,l); X( 0)=l; HOST_c2l(data,l); X( 1)=l;
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/* Round 0 */
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R0(A,B,C,D,X( 0), 3,0); HOST_c2l(data,l); X( 2)=l;
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R0(D,A,B,C,X( 1), 7,0); HOST_c2l(data,l); X( 3)=l;
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R0(C,D,A,B,X( 2),11,0); HOST_c2l(data,l); X( 4)=l;
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R0(B,C,D,A,X( 3),19,0); HOST_c2l(data,l); X( 5)=l;
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R0(A,B,C,D,X( 4), 3,0); HOST_c2l(data,l); X( 6)=l;
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R0(D,A,B,C,X( 5), 7,0); HOST_c2l(data,l); X( 7)=l;
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R0(C,D,A,B,X( 6),11,0); HOST_c2l(data,l); X( 8)=l;
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R0(B,C,D,A,X( 7),19,0); HOST_c2l(data,l); X( 9)=l;
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R0(A,B,C,D,X( 8), 3,0); HOST_c2l(data,l); X(10)=l;
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R0(D,A,B,C,X( 9), 7,0); HOST_c2l(data,l); X(11)=l;
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R0(C,D,A,B,X(10),11,0); HOST_c2l(data,l); X(12)=l;
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R0(B,C,D,A,X(11),19,0); HOST_c2l(data,l); X(13)=l;
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R0(A,B,C,D,X(12), 3,0); HOST_c2l(data,l); X(14)=l;
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R0(D,A,B,C,X(13), 7,0); HOST_c2l(data,l); X(15)=l;
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R0(C,D,A,B,X(14),11,0);
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R0(B,C,D,A,X(15),19,0);
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/* Round 1 */
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R1(A,B,C,D,X( 0), 3,0x5A827999L);
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R1(D,A,B,C,X( 4), 5,0x5A827999L);
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R1(C,D,A,B,X( 8), 9,0x5A827999L);
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R1(B,C,D,A,X(12),13,0x5A827999L);
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R1(A,B,C,D,X( 1), 3,0x5A827999L);
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R1(D,A,B,C,X( 5), 5,0x5A827999L);
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R1(C,D,A,B,X( 9), 9,0x5A827999L);
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R1(B,C,D,A,X(13),13,0x5A827999L);
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R1(A,B,C,D,X( 2), 3,0x5A827999L);
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R1(D,A,B,C,X( 6), 5,0x5A827999L);
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R1(C,D,A,B,X(10), 9,0x5A827999L);
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R1(B,C,D,A,X(14),13,0x5A827999L);
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R1(A,B,C,D,X( 3), 3,0x5A827999L);
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R1(D,A,B,C,X( 7), 5,0x5A827999L);
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R1(C,D,A,B,X(11), 9,0x5A827999L);
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R1(B,C,D,A,X(15),13,0x5A827999L);
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/* Round 2 */
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R2(A,B,C,D,X( 0), 3,0x6ED9EBA1L);
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R2(D,A,B,C,X( 8), 9,0x6ED9EBA1L);
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R2(C,D,A,B,X( 4),11,0x6ED9EBA1L);
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R2(B,C,D,A,X(12),15,0x6ED9EBA1L);
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R2(A,B,C,D,X( 2), 3,0x6ED9EBA1L);
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R2(D,A,B,C,X(10), 9,0x6ED9EBA1L);
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R2(C,D,A,B,X( 6),11,0x6ED9EBA1L);
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R2(B,C,D,A,X(14),15,0x6ED9EBA1L);
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R2(A,B,C,D,X( 1), 3,0x6ED9EBA1L);
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R2(D,A,B,C,X( 9), 9,0x6ED9EBA1L);
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R2(C,D,A,B,X( 5),11,0x6ED9EBA1L);
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R2(B,C,D,A,X(13),15,0x6ED9EBA1L);
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R2(A,B,C,D,X( 3), 3,0x6ED9EBA1L);
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R2(D,A,B,C,X(11), 9,0x6ED9EBA1L);
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R2(C,D,A,B,X( 7),11,0x6ED9EBA1L);
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R2(B,C,D,A,X(15),15,0x6ED9EBA1L);
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A = c->A += A;
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B = c->B += B;
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C = c->C += C;
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D = c->D += D;
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}
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}
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#endif
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