3 The MD5 hash function, described in RFC 1321.
5 Copyright (C) 2001 Niels Möller
7 This file is part of GNU Nettle.
9 GNU Nettle is free software: you can redistribute it and/or
10 modify it under the terms of either:
12 * the GNU Lesser General Public License as published by the Free
13 Software Foundation; either version 3 of the License, or (at your
14 option) any later version.
18 * the GNU General Public License as published by the Free
19 Software Foundation; either version 2 of the License, or (at your
20 option) any later version.
22 or both in parallel, as here.
24 GNU Nettle is distributed in the hope that it will be useful,
25 but WITHOUT ANY WARRANTY; without even the implied warranty of
26 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 General Public License for more details.
29 You should have received copies of the GNU General Public License and
30 the GNU Lesser General Public License along with this program. If
31 not, see http://www.gnu.org/licenses/.
34 #ifndef NETTLE_MD5_H_INCLUDED
35 #define NETTLE_MD5_H_INCLUDED
37 #include "nettle-types.h"
44 #define md5_init nettle_md5_init
45 #define md5_update nettle_md5_update
46 #define md5_digest nettle_md5_digest
48 #define MD5_DIGEST_SIZE 16
49 #define MD5_BLOCK_SIZE 64
50 /* For backwards compatibility */
51 #define MD5_DATA_SIZE MD5_BLOCK_SIZE
53 /* Digest is kept internally as 4 32-bit words. */
54 #define _MD5_DIGEST_LENGTH 4
58 uint32_t state[_MD5_DIGEST_LENGTH];
59 uint64_t count; /* Block count */
60 unsigned index; /* Into buffer */
61 uint8_t block[MD5_BLOCK_SIZE]; /* Block buffer */
65 md5_init(struct md5_ctx *ctx);
68 md5_update(struct md5_ctx *ctx,
73 md5_digest(struct md5_ctx *ctx,
77 /* Internal compression function. STATE points to 4 uint32_t words,
78 and DATA points to 64 bytes of input data, possibly unaligned. */
80 nettle_md5_compress(uint32_t *state, const uint8_t *data);
82 #define _nettle_md5_compress nettle_md5_compress
88 #endif /* NETTLE_MD5_H_INCLUDED */