1/*-
2 * Copyright 2005 Colin Percival
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef _SHA256_H_
28#define _SHA256_H_
29
30#ifndef _KERNEL
31#include <sys/types.h>
32#endif
33
34#define SHA256_BLOCK_LENGTH		64
35#define SHA256_DIGEST_LENGTH		32
36#define SHA256_DIGEST_STRING_LENGTH	(SHA256_DIGEST_LENGTH * 2 + 1)
37
38typedef struct SHA256Context {
39	uint32_t state[8];
40	uint64_t count;
41	uint8_t buf[SHA256_BLOCK_LENGTH];
42} SHA256_CTX;
43
44__BEGIN_DECLS
45
46/* Ensure libmd symbols do not clash with libcrypto */
47
48#ifndef SHA256_Init
49#define SHA256_Init		_libmd_SHA256_Init
50#endif
51#ifndef SHA256_Update
52#define SHA256_Update		_libmd_SHA256_Update
53#endif
54#ifndef SHA256_Final
55#define SHA256_Final		_libmd_SHA256_Final
56#endif
57#ifndef SHA256_End
58#define SHA256_End		_libmd_SHA256_End
59#endif
60#ifndef SHA256_Fd
61#define SHA256_Fd		_libmd_SHA256_Fd
62#endif
63#ifndef SHA256_FdChunk
64#define SHA256_FdChunk		_libmd_SHA256_FdChunk
65#endif
66#ifndef SHA256_File
67#define SHA256_File		_libmd_SHA256_File
68#endif
69#ifndef SHA256_FileChunk
70#define SHA256_FileChunk	_libmd_SHA256_FileChunk
71#endif
72#ifndef SHA256_Data
73#define SHA256_Data		_libmd_SHA256_Data
74#endif
75
76#ifndef SHA256_Transform
77#define SHA256_Transform	_libmd_SHA256_Transform
78#endif
79#ifndef SHA256_version
80#define SHA256_version		_libmd_SHA256_version
81#endif
82
83void	SHA256_Init(SHA256_CTX *);
84void	SHA256_Update(SHA256_CTX *, const void *, size_t);
85void	SHA256_Final(unsigned char [__min_size(SHA256_DIGEST_LENGTH)],
86    SHA256_CTX *);
87#ifndef _KERNEL
88char   *SHA256_End(SHA256_CTX *, char *);
89char   *SHA256_Data(const void *, unsigned int, char *);
90char   *SHA256_Fd(int, char *);
91char   *SHA256_FdChunk(int, char *, off_t, off_t);
92char   *SHA256_File(const char *, char *);
93char   *SHA256_FileChunk(const char *, char *, off_t, off_t);
94#endif
95__END_DECLS
96
97#endif /* !_SHA256_H_ */
98