1/*	$NetBSD: md5.h,v 1.2 2024/08/18 20:47:14 christos Exp $	*/
2
3/*
4 * Copyright (C) 2004-2007, 2009, 2010  Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (C) 2000, 2001  Internet Software Consortium.
6 *
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20/* Id: md5.h,v 1.20 2010/01/07 23:48:54 tbox Exp  */
21
22/*! \file isc/md5.h
23 * \brief This is the header file for the MD5 message-digest algorithm.
24 *
25 * The algorithm is due to Ron Rivest.  This code was
26 * written by Colin Plumb in 1993, no copyright is claimed.
27 * This code is in the public domain; do with it what you wish.
28 *
29 * Equivalent code is available from RSA Data Security, Inc.
30 * This code has been tested against that, and is equivalent,
31 * except that you don't need to include two pages of legalese
32 * with every copy.
33 *
34 * To compute the message digest of a chunk of bytes, declare an
35 * MD5Context structure, pass it to MD5Init, call MD5Update as
36 * needed on buffers full of bytes, and then call MD5Final, which
37 * will fill a supplied 16-byte array with the digest.
38 *
39 * Changed so as no longer to depend on Colin Plumb's `usual.h'
40 * header definitions; now uses stuff from dpkg's config.h
41 *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
42 * Still in the public domain.
43 */
44
45#ifndef ISC_MD5_H
46#define ISC_MD5_H 1
47
48#include <isc/lang.h>
49#include <isc/platform.h>
50#include <isc/types.h>
51
52#define ISC_MD5_DIGESTLENGTH 16U
53#define ISC_MD5_BLOCK_LENGTH 64U
54
55#ifdef ISC_PLATFORM_OPENSSLHASH
56#include <openssl/evp.h>
57
58typedef EVP_MD_CTX isc_md5_t;
59
60#else
61
62typedef struct {
63	isc_uint32_t buf[4];
64	isc_uint32_t bytes[2];
65	isc_uint32_t in[16];
66} isc_md5_t;
67#endif
68
69ISC_LANG_BEGINDECLS
70
71void
72isc_md5_init(isc_md5_t *ctx);
73
74void
75isc_md5_invalidate(isc_md5_t *ctx);
76
77void
78isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len);
79
80void
81isc_md5_final(isc_md5_t *ctx, unsigned char *digest);
82
83ISC_LANG_ENDDECLS
84
85#endif /* ISC_MD5_H */
86