• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 
MD4_Init(MD4_CTX * c)73 int MD4_Init(MD4_CTX *c)
74 	{
75 	memset (c,0,sizeof(*c));
76 	c->A=INIT_DATA_A;
77 	c->B=INIT_DATA_B;
78 	c->C=INIT_DATA_C;
79 	c->D=INIT_DATA_D;
80 	return 1;
81 	}
82 
83 #ifndef md4_block_data_order
84 #ifdef X
85 #undef X
86 #endif
md4_block_data_order(MD4_CTX * c,const void * data_,size_t num)87 void md4_block_data_order (MD4_CTX *c, const void *data_, size_t num)
88 	{
89 	const unsigned char *data=data_;
90 	register unsigned MD32_REG_T A,B,C,D,l;
91 #ifndef MD32_XARRAY
92 	/* See comment in crypto/sha/sha_locl.h for details. */
93 	unsigned MD32_REG_T	XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
94 				XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
95 # define X(i)	XX##i
96 #else
97 	MD4_LONG XX[MD4_LBLOCK];
98 # define X(i)	XX[i]
99 #endif
100 
101 	A=c->A;
102 	B=c->B;
103 	C=c->C;
104 	D=c->D;
105 
106 	for (;num--;)
107 		{
108 	HOST_c2l(data,l); X( 0)=l;		HOST_c2l(data,l); X( 1)=l;
109 	/* Round 0 */
110 	R0(A,B,C,D,X( 0), 3,0);	HOST_c2l(data,l); X( 2)=l;
111 	R0(D,A,B,C,X( 1), 7,0);	HOST_c2l(data,l); X( 3)=l;
112 	R0(C,D,A,B,X( 2),11,0);	HOST_c2l(data,l); X( 4)=l;
113 	R0(B,C,D,A,X( 3),19,0);	HOST_c2l(data,l); X( 5)=l;
114 	R0(A,B,C,D,X( 4), 3,0);	HOST_c2l(data,l); X( 6)=l;
115 	R0(D,A,B,C,X( 5), 7,0);	HOST_c2l(data,l); X( 7)=l;
116 	R0(C,D,A,B,X( 6),11,0);	HOST_c2l(data,l); X( 8)=l;
117 	R0(B,C,D,A,X( 7),19,0);	HOST_c2l(data,l); X( 9)=l;
118 	R0(A,B,C,D,X( 8), 3,0);	HOST_c2l(data,l); X(10)=l;
119 	R0(D,A,B,C,X( 9), 7,0);	HOST_c2l(data,l); X(11)=l;
120 	R0(C,D,A,B,X(10),11,0);	HOST_c2l(data,l); X(12)=l;
121 	R0(B,C,D,A,X(11),19,0);	HOST_c2l(data,l); X(13)=l;
122 	R0(A,B,C,D,X(12), 3,0);	HOST_c2l(data,l); X(14)=l;
123 	R0(D,A,B,C,X(13), 7,0);	HOST_c2l(data,l); X(15)=l;
124 	R0(C,D,A,B,X(14),11,0);
125 	R0(B,C,D,A,X(15),19,0);
126 	/* Round 1 */
127 	R1(A,B,C,D,X( 0), 3,0x5A827999L);
128 	R1(D,A,B,C,X( 4), 5,0x5A827999L);
129 	R1(C,D,A,B,X( 8), 9,0x5A827999L);
130 	R1(B,C,D,A,X(12),13,0x5A827999L);
131 	R1(A,B,C,D,X( 1), 3,0x5A827999L);
132 	R1(D,A,B,C,X( 5), 5,0x5A827999L);
133 	R1(C,D,A,B,X( 9), 9,0x5A827999L);
134 	R1(B,C,D,A,X(13),13,0x5A827999L);
135 	R1(A,B,C,D,X( 2), 3,0x5A827999L);
136 	R1(D,A,B,C,X( 6), 5,0x5A827999L);
137 	R1(C,D,A,B,X(10), 9,0x5A827999L);
138 	R1(B,C,D,A,X(14),13,0x5A827999L);
139 	R1(A,B,C,D,X( 3), 3,0x5A827999L);
140 	R1(D,A,B,C,X( 7), 5,0x5A827999L);
141 	R1(C,D,A,B,X(11), 9,0x5A827999L);
142 	R1(B,C,D,A,X(15),13,0x5A827999L);
143 	/* Round 2 */
144 	R2(A,B,C,D,X( 0), 3,0x6ED9EBA1L);
145 	R2(D,A,B,C,X( 8), 9,0x6ED9EBA1L);
146 	R2(C,D,A,B,X( 4),11,0x6ED9EBA1L);
147 	R2(B,C,D,A,X(12),15,0x6ED9EBA1L);
148 	R2(A,B,C,D,X( 2), 3,0x6ED9EBA1L);
149 	R2(D,A,B,C,X(10), 9,0x6ED9EBA1L);
150 	R2(C,D,A,B,X( 6),11,0x6ED9EBA1L);
151 	R2(B,C,D,A,X(14),15,0x6ED9EBA1L);
152 	R2(A,B,C,D,X( 1), 3,0x6ED9EBA1L);
153 	R2(D,A,B,C,X( 9), 9,0x6ED9EBA1L);
154 	R2(C,D,A,B,X( 5),11,0x6ED9EBA1L);
155 	R2(B,C,D,A,X(13),15,0x6ED9EBA1L);
156 	R2(A,B,C,D,X( 3), 3,0x6ED9EBA1L);
157 	R2(D,A,B,C,X(11), 9,0x6ED9EBA1L);
158 	R2(C,D,A,B,X( 7),11,0x6ED9EBA1L);
159 	R2(B,C,D,A,X(15),15,0x6ED9EBA1L);
160 
161 	A = c->A += A;
162 	B = c->B += B;
163 	C = c->C += C;
164 	D = c->D += D;
165 		}
166 	}
167 #endif
168