1/*-
2 * Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
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 ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25#ifndef DIGEST_H_
26#define DIGEST_H_	20100108
27
28#include <sys/types.h>
29
30#ifdef _KERNEL
31# include <sys/md5.h>
32# include <sys/sha1.h>
33# include <sys/sha2.h>
34# include <sys/rmd160.h>
35#else
36# include <md5.h>
37# include <sha1.h>
38# include <sha2.h>
39# include <rmd160.h>
40# include <inttypes.h>
41#endif
42
43#include "tiger.h"
44
45#ifndef __BEGIN_DECLS
46#  if defined(__cplusplus)
47#  define __BEGIN_DECLS           extern "C" {
48#  define __END_DECLS             }
49#  else
50#  define __BEGIN_DECLS
51#  define __END_DECLS
52#  endif
53#endif
54
55__BEGIN_DECLS
56
57#define MD5_HASH_ALG		1
58#define SHA1_HASH_ALG		2
59#define RIPEMD_HASH_ALG		3
60#define TIGER_HASH_ALG		6	/* from rfc2440 */
61#define SHA256_HASH_ALG		8
62#define SHA384_HASH_ALG		9
63#define SHA512_HASH_ALG		10
64#define SHA224_HASH_ALG		11
65#define TIGER2_HASH_ALG		100	/* private/experimental from rfc4880 */
66
67/* structure to describe digest methods */
68typedef struct digest_t {
69	uint32_t		 alg;		/* algorithm */
70	size_t			 size;		/* size */
71	union {
72		MD5_CTX		 md5ctx;	/* MD5 */
73		SHA1_CTX	 sha1ctx;	/* SHA1 */
74		RMD160_CTX	 rmd160ctx;	/* RIPEMD */
75		SHA256_CTX	 sha256ctx;	/* SHA256 */
76		SHA512_CTX	 sha512ctx;	/* SHA512 */
77		TIGER_CTX	 tigerctx;	/* TIGER/TIGER2 */
78	} u;
79	void			*prefix;	/* points to specific prefix */
80	uint32_t		 len;		/* prefix length */
81	void			*ctx;		/* pointer to context array */
82} digest_t;
83
84unsigned digest_get_alg(const char */*hashalg*/);
85
86int digest_init(digest_t */*digest*/, const uint32_t /*hashalg*/);
87
88int digest_update(digest_t */*digest*/, const uint8_t */*data*/, size_t /*size*/);
89unsigned digest_final(uint8_t */*out*/, digest_t */*digest*/);
90int digest_alg_size(unsigned /*alg*/);
91int digest_length(digest_t */*hash*/, unsigned /*hashedlen*/);
92
93void MD5_Init(MD5_CTX */*context*/);
94void MD5_Update(MD5_CTX */*context*/, const unsigned char */*data*/, unsigned int /*len*/);
95void MD5_Final(unsigned char /*digest*/[16], MD5_CTX */*context*/);
96
97void SHA1_Init(SHA1_CTX */*context*/);
98void SHA1_Update(SHA1_CTX */*context*/, const unsigned char */*data*/, unsigned int /*len*/);
99void SHA1_Final(unsigned char /*digest*/[20], SHA1_CTX */*context*/);
100
101void RMD160_Init(RMD160_CTX */*ctx*/);
102void RMD160_Update(RMD160_CTX */*ctx*/, const unsigned char */*data*/, uint32_t /*len*/);
103void RMD160_Final(unsigned char /*digest*/[RMD160_DIGEST_LENGTH], RMD160_CTX */*ctx*/);
104
105unsigned digest_get_prefix(unsigned /*hashalg*/, uint8_t */*prefix*/, size_t /*size*/);
106
107__END_DECLS
108
109#endif
110