include/nettle/md2.h

0001 /* md2.h
0002
0003    The MD2 hash function, described in RFC 1319.
0004
0005    Copyright (C) 2003 Niels Möller
0006
0007    This file is part of GNU Nettle.
0008
0009    GNU Nettle is free software: you can redistribute it and/or
0010    modify it under the terms of either:
0011
0012      * the GNU Lesser General Public License as published by the Free
0013        Software Foundation; either version 3 of the License, or (at your
0014        option) any later version.
0015
0016    or
0017
0018      * the GNU General Public License as published by the Free
0019        Software Foundation; either version 2 of the License, or (at your
0020        option) any later version.
0021
0022    or both in parallel, as here.
0023
0024    GNU Nettle is distributed in the hope that it will be useful,
0025    but WITHOUT ANY WARRANTY; without even the implied warranty of
0026    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0027    General Public License for more details.
0028
0029    You should have received copies of the GNU General Public License and
0030    the GNU Lesser General Public License along with this program.  If
0031    not, see http://www.gnu.org/licenses/.
0032 */
0033
0034 #ifndef NETTLE_MD2_H_INCLUDED
0035 #define NETTLE_MD2_H_INCLUDED
0036
0037 #include "nettle-types.h"
0038
0039 #ifdef __cplusplus
0040 extern "C" {
0041 #endif
0042
0043 /* Name mangling */
0044 #define md2_init nettle_md2_init
0045 #define md2_update nettle_md2_update
0046 #define md2_digest nettle_md2_digest
0047
0048 #define MD2_DIGEST_SIZE 16
0049 #define MD2_BLOCK_SIZE 16
0050 /* For backwards compatibility */
0051 #define MD2_DATA_SIZE MD2_BLOCK_SIZE
0052
0053 struct md2_ctx
0054 {
0055   uint8_t C[MD2_BLOCK_SIZE];
0056   uint8_t X[3 * MD2_BLOCK_SIZE];
0057   unsigned index;               /* Into buffer */
0058   uint8_t block[MD2_BLOCK_SIZE]; /* Block buffer */
0059 };
0060
0061 void
0062 md2_init(struct md2_ctx *ctx);
0063
0064 void
0065 md2_update(struct md2_ctx *ctx,
0066        size_t length,
0067        const uint8_t *data);
0068
0069 void
0070 md2_digest(struct md2_ctx *ctx,
0071        size_t length,
0072        uint8_t *digest);
0073
0074
0075 #ifdef __cplusplus
0076 }
0077 #endif
0078
0079 #endif /* NETTLE_MD2_H_INCLUDED */