/* $OpenBSD: md4_dgst.c,v 1.17 2022/11/26 16:08:53 tb Exp $ */ /* 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 #include #include #include "md4_local.h" /* 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 int MD4_Init(MD4_CTX *c) { memset (c,0,sizeof(*c)); c->A=INIT_DATA_A; c->B=INIT_DATA_B; c->C=INIT_DATA_C; c->D=INIT_DATA_D; return 1; } #ifndef md4_block_data_order #ifdef X #undef X #endif void md4_block_data_order (MD4_CTX *c, const void *data_, size_t num) { const unsigned char *data=data_; unsigned MD32_REG_T A,B,C,D,l; #ifndef MD32_XARRAY /* See comment in crypto/sha/sha_locl.h for details. */ unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7, XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15; # 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