1 /* crypto/md5/md5.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 #ifndef HEADER_MD5_H
60 # define HEADER_MD5_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_MD5
70 #  error MD5 is disabled.
71 # endif
72 
73 /*
74  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
75  * ! MD5_LONG has to be at least 32 bits wide. If it's wider, then !
76  * ! MD5_LONG_LOG2 has to be defined along.                        !
77  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
78  */
79 
80 # if defined(__LP32__)
81 #  define MD5_LONG unsigned long
82 # elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
83 #  define MD5_LONG unsigned long
84 #  define MD5_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...
90  *                                      <appro@fy.chalmers.se>
91  */
92 # else
93 #  define MD5_LONG unsigned int
94 # endif
95 
96 # define MD5_CBLOCK      64
97 # define MD5_LBLOCK      (MD5_CBLOCK/4)
98 # define MD5_DIGEST_LENGTH 16
99 
100 typedef struct MD5state_st {
101     MD5_LONG A, B, C, D;
102     MD5_LONG Nl, Nh;
103     MD5_LONG data[MD5_LBLOCK];
104     unsigned int num;
105 } MD5_CTX;
106 
107 # ifdef OPENSSL_FIPS
108 int private_MD5_Init(MD5_CTX *c);
109 # endif
110 int MD5_Init(MD5_CTX *c);
111 int MD5_Update(MD5_CTX *c, const void *data, size_t len);
112 int MD5_Final(unsigned char *md, MD5_CTX *c);
113 unsigned char *MD5(const unsigned char *d, size_t n, unsigned char *md);
114 void MD5_Transform(MD5_CTX *c, const unsigned char *b);
115 #ifdef  __cplusplus
116 }
117 #endif
118 
119 #endif
120