crypto/openssl-0.9/crypto/md4/md4_dgst.c

   1 /* crypto/md4/md4_dgst.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   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.
   8  *
   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).
  15  *
  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.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  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)"
  40  *
  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
  51  * SUCH DAMAGE.
  52  *
  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.]
  57  */
  58
  59 #include <stdio.h>
  60 #include "md4_locl.h"
  61 #include <openssl/opensslv.h>
  62
  63 const char MD4_version[]="MD4" OPENSSL_VERSION_PTEXT;
  64
  65 /* Implemented from RFC1186 The MD4 Message-Digest Algorithm
  66  */
  67
  68 #define INIT_DATA_A (unsigned long)0x67452301L
  69 #define INIT_DATA_B (unsigned long)0xefcdab89L
  70 #define INIT_DATA_C (unsigned long)0x98badcfeL
  71 #define INIT_DATA_D (unsigned long)0x10325476L
  72
  73 int MD4_Init(MD4_CTX *c)
  74         {
  75         c->A=INIT_DATA_A;
  76         c->B=INIT_DATA_B;
  77         c->C=INIT_DATA_C;
  78         c->D=INIT_DATA_D;
  79         c->Nl=0;
  80         c->Nh=0;
  81         c->num=0;
  82         return 1;
  83         }
  84
  85 #ifndef md4_block_data_order
  86 #ifdef X
  87 #undef X
  88 #endif
  89 void md4_block_data_order (MD4_CTX *c, const void *data_, size_t num)
  90         {
  91         const unsigned char *data=data_;
  92         register unsigned MD32_REG_T A,B,C,D,l;
  93 #ifndef MD32_XARRAY
  94         /* See comment in crypto/sha/sha_locl.h for details. */
  95         unsigned MD32_REG_T     XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
  96                                 XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
  97 # define X(i)   XX##i
  98 #else
  99         MD4_LONG XX[MD4_LBLOCK];
 100 # define X(i)   XX[i]
 101 #endif
 102
 103         A=c->A;
 104         B=c->B;
 105         C=c->C;
 106         D=c->D;
 107
 108         for (;num--;)
 109                 {
 110         HOST_c2l(data,l); X( 0)=l;              HOST_c2l(data,l); X( 1)=l;
 111         /* Round 0 */
 112         R0(A,B,C,D,X( 0), 3,0); HOST_c2l(data,l); X( 2)=l;
 113         R0(D,A,B,C,X( 1), 7,0); HOST_c2l(data,l); X( 3)=l;
 114         R0(C,D,A,B,X( 2),11,0); HOST_c2l(data,l); X( 4)=l;
 115         R0(B,C,D,A,X( 3),19,0); HOST_c2l(data,l); X( 5)=l;
 116         R0(A,B,C,D,X( 4), 3,0); HOST_c2l(data,l); X( 6)=l;
 117         R0(D,A,B,C,X( 5), 7,0); HOST_c2l(data,l); X( 7)=l;
 118         R0(C,D,A,B,X( 6),11,0); HOST_c2l(data,l); X( 8)=l;
 119         R0(B,C,D,A,X( 7),19,0); HOST_c2l(data,l); X( 9)=l;
 120         R0(A,B,C,D,X( 8), 3,0); HOST_c2l(data,l); X(10)=l;
 121         R0(D,A,B,C,X( 9), 7,0); HOST_c2l(data,l); X(11)=l;
 122         R0(C,D,A,B,X(10),11,0); HOST_c2l(data,l); X(12)=l;
 123         R0(B,C,D,A,X(11),19,0); HOST_c2l(data,l); X(13)=l;
 124         R0(A,B,C,D,X(12), 3,0); HOST_c2l(data,l); X(14)=l;
 125         R0(D,A,B,C,X(13), 7,0); HOST_c2l(data,l); X(15)=l;
 126         R0(C,D,A,B,X(14),11,0);
 127         R0(B,C,D,A,X(15),19,0);
 128         /* Round 1 */
 129         R1(A,B,C,D,X( 0), 3,0x5A827999L);
 130         R1(D,A,B,C,X( 4), 5,0x5A827999L);
 131         R1(C,D,A,B,X( 8), 9,0x5A827999L);
 132         R1(B,C,D,A,X(12),13,0x5A827999L);
 133         R1(A,B,C,D,X( 1), 3,0x5A827999L);
 134         R1(D,A,B,C,X( 5), 5,0x5A827999L);
 135         R1(C,D,A,B,X( 9), 9,0x5A827999L);
 136         R1(B,C,D,A,X(13),13,0x5A827999L);
 137         R1(A,B,C,D,X( 2), 3,0x5A827999L);
 138         R1(D,A,B,C,X( 6), 5,0x5A827999L);
 139         R1(C,D,A,B,X(10), 9,0x5A827999L);
 140         R1(B,C,D,A,X(14),13,0x5A827999L);
 141         R1(A,B,C,D,X( 3), 3,0x5A827999L);
 142         R1(D,A,B,C,X( 7), 5,0x5A827999L);
 143         R1(C,D,A,B,X(11), 9,0x5A827999L);
 144         R1(B,C,D,A,X(15),13,0x5A827999L);
 145         /* Round 2 */
 146         R2(A,B,C,D,X( 0), 3,0x6ED9EBA1L);
 147         R2(D,A,B,C,X( 8), 9,0x6ED9EBA1L);
 148         R2(C,D,A,B,X( 4),11,0x6ED9EBA1L);
 149         R2(B,C,D,A,X(12),15,0x6ED9EBA1L);
 150         R2(A,B,C,D,X( 2), 3,0x6ED9EBA1L);
 151         R2(D,A,B,C,X(10), 9,0x6ED9EBA1L);
 152         R2(C,D,A,B,X( 6),11,0x6ED9EBA1L);
 153         R2(B,C,D,A,X(14),15,0x6ED9EBA1L);
 154         R2(A,B,C,D,X( 1), 3,0x6ED9EBA1L);
 155         R2(D,A,B,C,X( 9), 9,0x6ED9EBA1L);
 156         R2(C,D,A,B,X( 5),11,0x6ED9EBA1L);
 157         R2(B,C,D,A,X(13),15,0x6ED9EBA1L);
 158         R2(A,B,C,D,X( 3), 3,0x6ED9EBA1L);
 159         R2(D,A,B,C,X(11), 9,0x6ED9EBA1L);
 160         R2(C,D,A,B,X( 7),11,0x6ED9EBA1L);
 161         R2(B,C,D,A,X(15),15,0x6ED9EBA1L);
 162
 163         A = c->A += A;
 164         B = c->B += B;
 165         C = c->C += C;
 166         D = c->D += D;
 167                 }
 168         }
 169 #endif