sha.h revision 142425 
1/* crypto/sha/sha.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_SHA_H
60#define HEADER_SHA_H
61
62#include <openssl/e_os2.h>
63
64#ifdef  __cplusplus
65extern "C" {
66#endif
67
68#if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1))
69#error SHA is disabled.
70#endif
71
72#if defined(OPENSSL_FIPS)
73#define FIPS_SHA_SIZE_T unsigned long
74#endif
75
76/*
77 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
78 * ! SHA_LONG has to be at least 32 bits wide. If it's wider, then !
79 * ! SHA_LONG_LOG2 has to be defined along.                        !
80 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
81 */
82
83#if defined(OPENSSL_SYS_WIN16) || defined(__LP32__)
84#define SHA_LONG unsigned long
85#elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
86#define SHA_LONG unsigned long
87#define SHA_LONG_LOG2 3
88#else
89#define SHA_LONG unsigned int
90#endif
91
92#define SHA_LBLOCK	16
93#define SHA_CBLOCK	(SHA_LBLOCK*4)	/* SHA treats input data as a
94					 * contiguous array of 32 bit
95					 * wide big-endian values. */
96#define SHA_LAST_BLOCK  (SHA_CBLOCK-8)
97#define SHA_DIGEST_LENGTH 20
98
99typedef struct SHAstate_st
100	{
101	SHA_LONG h0,h1,h2,h3,h4;
102	SHA_LONG Nl,Nh;
103	SHA_LONG data[SHA_LBLOCK];
104	int num;
105	} SHA_CTX;
106
107#ifndef OPENSSL_NO_SHA0
108int SHA_Init(SHA_CTX *c);
109int SHA_Update(SHA_CTX *c, const void *data, unsigned long len);
110int SHA_Final(unsigned char *md, SHA_CTX *c);
111unsigned char *SHA(const unsigned char *d, unsigned long n,unsigned char *md);
112void SHA_Transform(SHA_CTX *c, const unsigned char *data);
113#endif
114#ifndef OPENSSL_NO_SHA1
115int SHA1_Init(SHA_CTX *c);
116int SHA1_Update(SHA_CTX *c, const void *data, unsigned long len);
117int SHA1_Final(unsigned char *md, SHA_CTX *c);
118unsigned char *SHA1(const unsigned char *d, unsigned long n,unsigned char *md);
119void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
120#endif
121#ifdef  __cplusplus
122}
123#endif
124
125#endif
126