Home | History | Annotate | Download | only in md5
      1 /* crypto/md5/md5_dgst.c */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 "md5_locl.h"
     61 #include <openssl/opensslv.h>
     62 #include <openssl/crypto.h>
     63 
     64 const char MD5_version[]="MD5" OPENSSL_VERSION_PTEXT;
     65 
     66 /* Implemented from RFC1321 The MD5 Message-Digest Algorithm
     67  */
     68 
     69 #define INIT_DATA_A (unsigned long)0x67452301L
     70 #define INIT_DATA_B (unsigned long)0xefcdab89L
     71 #define INIT_DATA_C (unsigned long)0x98badcfeL
     72 #define INIT_DATA_D (unsigned long)0x10325476L
     73 
     74 fips_md_init(MD5)
     75 	{
     76 	memset (c,0,sizeof(*c));
     77 	c->A=INIT_DATA_A;
     78 	c->B=INIT_DATA_B;
     79 	c->C=INIT_DATA_C;
     80 	c->D=INIT_DATA_D;
     81 	return 1;
     82 	}
     83 
     84 #ifndef md5_block_data_order
     85 #ifdef X
     86 #undef X
     87 #endif
     88 void md5_block_data_order (MD5_CTX *c, const void *data_, size_t num)
     89 	{
     90 	const unsigned char *data=data_;
     91 	register unsigned MD32_REG_T A,B,C,D,l;
     92 #ifndef MD32_XARRAY
     93 	/* See comment in crypto/sha/sha_locl.h for details. */
     94 	unsigned MD32_REG_T	XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
     95 				XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
     96 # define X(i)	XX##i
     97 #else
     98 	MD5_LONG XX[MD5_LBLOCK];
     99 # define X(i)	XX[i]
    100 #endif
    101 
    102 	A=c->A;
    103 	B=c->B;
    104 	C=c->C;
    105 	D=c->D;
    106 
    107 	for (;num--;)
    108 		{
    109 	HOST_c2l(data,l); X( 0)=l;		HOST_c2l(data,l); X( 1)=l;
    110 	/* Round 0 */
    111 	R0(A,B,C,D,X( 0), 7,0xd76aa478L);	HOST_c2l(data,l); X( 2)=l;
    112 	R0(D,A,B,C,X( 1),12,0xe8c7b756L);	HOST_c2l(data,l); X( 3)=l;
    113 	R0(C,D,A,B,X( 2),17,0x242070dbL);	HOST_c2l(data,l); X( 4)=l;
    114 	R0(B,C,D,A,X( 3),22,0xc1bdceeeL);	HOST_c2l(data,l); X( 5)=l;
    115 	R0(A,B,C,D,X( 4), 7,0xf57c0fafL);	HOST_c2l(data,l); X( 6)=l;
    116 	R0(D,A,B,C,X( 5),12,0x4787c62aL);	HOST_c2l(data,l); X( 7)=l;
    117 	R0(C,D,A,B,X( 6),17,0xa8304613L);	HOST_c2l(data,l); X( 8)=l;
    118 	R0(B,C,D,A,X( 7),22,0xfd469501L);	HOST_c2l(data,l); X( 9)=l;
    119 	R0(A,B,C,D,X( 8), 7,0x698098d8L);	HOST_c2l(data,l); X(10)=l;
    120 	R0(D,A,B,C,X( 9),12,0x8b44f7afL);	HOST_c2l(data,l); X(11)=l;
    121 	R0(C,D,A,B,X(10),17,0xffff5bb1L);	HOST_c2l(data,l); X(12)=l;
    122 	R0(B,C,D,A,X(11),22,0x895cd7beL);	HOST_c2l(data,l); X(13)=l;
    123 	R0(A,B,C,D,X(12), 7,0x6b901122L);	HOST_c2l(data,l); X(14)=l;
    124 	R0(D,A,B,C,X(13),12,0xfd987193L);	HOST_c2l(data,l); X(15)=l;
    125 	R0(C,D,A,B,X(14),17,0xa679438eL);
    126 	R0(B,C,D,A,X(15),22,0x49b40821L);
    127 	/* Round 1 */
    128 	R1(A,B,C,D,X( 1), 5,0xf61e2562L);
    129 	R1(D,A,B,C,X( 6), 9,0xc040b340L);
    130 	R1(C,D,A,B,X(11),14,0x265e5a51L);
    131 	R1(B,C,D,A,X( 0),20,0xe9b6c7aaL);
    132 	R1(A,B,C,D,X( 5), 5,0xd62f105dL);
    133 	R1(D,A,B,C,X(10), 9,0x02441453L);
    134 	R1(C,D,A,B,X(15),14,0xd8a1e681L);
    135 	R1(B,C,D,A,X( 4),20,0xe7d3fbc8L);
    136 	R1(A,B,C,D,X( 9), 5,0x21e1cde6L);
    137 	R1(D,A,B,C,X(14), 9,0xc33707d6L);
    138 	R1(C,D,A,B,X( 3),14,0xf4d50d87L);
    139 	R1(B,C,D,A,X( 8),20,0x455a14edL);
    140 	R1(A,B,C,D,X(13), 5,0xa9e3e905L);
    141 	R1(D,A,B,C,X( 2), 9,0xfcefa3f8L);
    142 	R1(C,D,A,B,X( 7),14,0x676f02d9L);
    143 	R1(B,C,D,A,X(12),20,0x8d2a4c8aL);
    144 	/* Round 2 */
    145 	R2(A,B,C,D,X( 5), 4,0xfffa3942L);
    146 	R2(D,A,B,C,X( 8),11,0x8771f681L);
    147 	R2(C,D,A,B,X(11),16,0x6d9d6122L);
    148 	R2(B,C,D,A,X(14),23,0xfde5380cL);
    149 	R2(A,B,C,D,X( 1), 4,0xa4beea44L);
    150 	R2(D,A,B,C,X( 4),11,0x4bdecfa9L);
    151 	R2(C,D,A,B,X( 7),16,0xf6bb4b60L);
    152 	R2(B,C,D,A,X(10),23,0xbebfbc70L);
    153 	R2(A,B,C,D,X(13), 4,0x289b7ec6L);
    154 	R2(D,A,B,C,X( 0),11,0xeaa127faL);
    155 	R2(C,D,A,B,X( 3),16,0xd4ef3085L);
    156 	R2(B,C,D,A,X( 6),23,0x04881d05L);
    157 	R2(A,B,C,D,X( 9), 4,0xd9d4d039L);
    158 	R2(D,A,B,C,X(12),11,0xe6db99e5L);
    159 	R2(C,D,A,B,X(15),16,0x1fa27cf8L);
    160 	R2(B,C,D,A,X( 2),23,0xc4ac5665L);
    161 	/* Round 3 */
    162 	R3(A,B,C,D,X( 0), 6,0xf4292244L);
    163 	R3(D,A,B,C,X( 7),10,0x432aff97L);
    164 	R3(C,D,A,B,X(14),15,0xab9423a7L);
    165 	R3(B,C,D,A,X( 5),21,0xfc93a039L);
    166 	R3(A,B,C,D,X(12), 6,0x655b59c3L);
    167 	R3(D,A,B,C,X( 3),10,0x8f0ccc92L);
    168 	R3(C,D,A,B,X(10),15,0xffeff47dL);
    169 	R3(B,C,D,A,X( 1),21,0x85845dd1L);
    170 	R3(A,B,C,D,X( 8), 6,0x6fa87e4fL);
    171 	R3(D,A,B,C,X(15),10,0xfe2ce6e0L);
    172 	R3(C,D,A,B,X( 6),15,0xa3014314L);
    173 	R3(B,C,D,A,X(13),21,0x4e0811a1L);
    174 	R3(A,B,C,D,X( 4), 6,0xf7537e82L);
    175 	R3(D,A,B,C,X(11),10,0xbd3af235L);
    176 	R3(C,D,A,B,X( 2),15,0x2ad7d2bbL);
    177 	R3(B,C,D,A,X( 9),21,0xeb86d391L);
    178 
    179 	A = c->A += A;
    180 	B = c->B += B;
    181 	C = c->C += C;
    182 	D = c->D += D;
    183 		}
    184 	}
    185 #endif
    186