1 /* crypto/md4/md4_locl.h */
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 <stdlib.h>
60 #include <string.h>
61 #include <openssl/opensslconf.h>
62 #include <openssl/md4.h>
63
64 #ifndef MD4_LONG_LOG2
65 #define MD4_LONG_LOG2 2 /* default to 32 bits */
66 #endif
67
68 void md4_block_data_order (MD4_CTX *c, const void *p,size_t num);
69
70 #define DATA_ORDER_IS_LITTLE_ENDIAN
71
72 #define HASH_LONG MD4_LONG
73 #define HASH_CTX MD4_CTX
74 #define HASH_CBLOCK MD4_CBLOCK
75 #define HASH_UPDATE MD4_Update
76 #define HASH_TRANSFORM MD4_Transform
77 #define HASH_FINAL MD4_Final
78 #define HASH_MAKE_STRING(c,s) do { \
79 unsigned long ll; \
80 ll=(c)->A; (void)HOST_l2c(ll,(s)); \
81 ll=(c)->B; (void)HOST_l2c(ll,(s)); \
82 ll=(c)->C; (void)HOST_l2c(ll,(s)); \
83 ll=(c)->D; (void)HOST_l2c(ll,(s)); \
84 } while (0)
85 #define HASH_BLOCK_DATA_ORDER md4_block_data_order
86
87 #include "md32_common.h"
88
89 /*
90 #define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
91 #define G(x,y,z) (((x) & (y)) | ((x) & ((z))) | ((y) & ((z))))
92 */
93
94 /* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
95 * simplified to the code below. Wei attributes these optimizations
96 * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
97 */
98 #define F(b,c,d) ((((c) ^ (d)) & (b)) ^ (d))
99 #define G(b,c,d) (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
100 #define H(b,c,d) ((b) ^ (c) ^ (d))
101
102 #define R0(a,b,c,d,k,s,t) { \
103 a+=((k)+(t)+F((b),(c),(d))); \
104 a=ROTATE(a,s); };
105
106 #define R1(a,b,c,d,k,s,t) { \
107 a+=((k)+(t)+G((b),(c),(d))); \
108 a=ROTATE(a,s); };\
109
110 #define R2(a,b,c,d,k,s,t) { \
111 a+=((k)+(t)+H((b),(c),(d))); \
112 a=ROTATE(a,s); };