OpenSSL  1.0.1c
 All Classes Files Functions Variables Typedefs Enumerations Enumerator Macros
md4.h
Go to the documentation of this file.
1 /* crypto/md4/md4.h */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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 #ifndef HEADER_MD4_H
60 #define HEADER_MD4_H
61 
62 #include <openssl/e_os2.h>
63 #include <stddef.h>
64 
65 #ifdef __cplusplus
66 extern "C" {
67 #endif
68 
69 #ifdef OPENSSL_NO_MD4
70 #error MD4 is disabled.
71 #endif
72 
73 /*
74  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
75  * ! MD4_LONG has to be at least 32 bits wide. If it's wider, then !
76  * ! MD4_LONG_LOG2 has to be defined along. !
77  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
78  */
79 
80 #if defined(__LP32__)
81 #define MD4_LONG unsigned long
82 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
83 #define MD4_LONG unsigned long
84 #define MD4_LONG_LOG2 3
85 /*
86  * _CRAY note. I could declare short, but I have no idea what impact
87  * does it have on performance on none-T3E machines. I could declare
88  * int, but at least on C90 sizeof(int) can be chosen at compile time.
89  * So I've chosen long...
91  */
92 #else
93 #define MD4_LONG unsigned int
94 #endif
95 
96 #define MD4_CBLOCK 64
97 #define MD4_LBLOCK (MD4_CBLOCK/4)
98 #define MD4_DIGEST_LENGTH 16
99 
100 typedef struct MD4state_st
101  {
102  MD4_LONG A,B,C,D;
103  MD4_LONG Nl,Nh;
105  unsigned int num;
106  } MD4_CTX;
107 
108 #ifdef OPENSSL_FIPS
109 int private_MD4_Init(MD4_CTX *c);
110 #endif
111 int MD4_Init(MD4_CTX *c);
112 int MD4_Update(MD4_CTX *c, const void *data, size_t len);
113 int MD4_Final(unsigned char *md, MD4_CTX *c);
114 unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md);
115 void MD4_Transform(MD4_CTX *c, const unsigned char *b);
116 #ifdef __cplusplus
117 }
118 #endif
119 
120 #endif