1/*
2 * Copyright (C) 2004-2007  Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 2000, 2001  Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18/* $Id: md5.h,v 1.16 2007/06/19 23:47:18 tbox Exp $ */
19
20/*! \file isc/md5.h
21 * \brief This is the header file for the MD5 message-digest algorithm.
22 *
23 * The algorithm is due to Ron Rivest.  This code was
24 * written by Colin Plumb in 1993, no copyright is claimed.
25 * This code is in the public domain; do with it what you wish.
26 *
27 * Equivalent code is available from RSA Data Security, Inc.
28 * This code has been tested against that, and is equivalent,
29 * except that you don't need to include two pages of legalese
30 * with every copy.
31 *
32 * To compute the message digest of a chunk of bytes, declare an
33 * MD5Context structure, pass it to MD5Init, call MD5Update as
34 * needed on buffers full of bytes, and then call MD5Final, which
35 * will fill a supplied 16-byte array with the digest.
36 *
37 * Changed so as no longer to depend on Colin Plumb's `usual.h'
38 * header definitions; now uses stuff from dpkg's config.h
39 *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
40 * Still in the public domain.
41 */
42
43#ifndef ISC_MD5_H
44#define ISC_MD5_H 1
45
46#include <isc/lang.h>
47#include <isc/types.h>
48
49#define ISC_MD5_DIGESTLENGTH 16U
50
51typedef struct {
52	isc_uint32_t buf[4];
53	isc_uint32_t bytes[2];
54	isc_uint32_t in[16];
55} isc_md5_t;
56
57ISC_LANG_BEGINDECLS
58
59void
60isc_md5_init(isc_md5_t *ctx);
61
62void
63isc_md5_invalidate(isc_md5_t *ctx);
64
65void
66isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len);
67
68void
69isc_md5_final(isc_md5_t *ctx, unsigned char *digest);
70
71ISC_LANG_ENDDECLS
72
73#endif /* ISC_MD5_H */
74