3 /* nettle, low-level cryptographics library
5 * Copyright (C) 2005 Niels Möller
7 * The nettle library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published by
9 * the Free Software Foundation; either version 2.1 of the License, or (at your
10 * option) any later version.
12 * The nettle library is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 * License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with the nettle library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
23 #ifndef NETTLE_TYPES_H
24 #define NETTLE_TYPES_H
26 #include "nettle-stdint.h"
32 /* Randomness. Used by key generation and dsa signature creation. */
33 typedef void nettle_random_func(void *ctx,
34 unsigned length, uint8_t *dst);
36 /* Progress report function, mainly for key generation. */
37 typedef void nettle_progress_func(void *ctx, int c);
39 /* Realloc function, used by struct nettle_buffer. */
40 typedef void *nettle_realloc_func(void *ctx, void *p, unsigned length);
43 typedef void nettle_set_key_func(void *ctx,
47 /* Uses a void * for cipher contexts.
49 For block ciphers it would make sense with a const void * for the
50 context, but we use the same typedef for stream ciphers where the
51 internal state changes during the encryption. */
53 typedef void nettle_crypt_func(void *ctx,
54 unsigned length, uint8_t *dst,
58 typedef void nettle_hash_init_func(void *ctx);
59 typedef void nettle_hash_update_func(void *ctx,
62 typedef void nettle_hash_digest_func(void *ctx,
63 unsigned length, uint8_t *dst);
65 /* ASCII armor codecs. NOTE: Experimental and subject to change. */
67 typedef unsigned nettle_armor_length_func(unsigned length);
68 typedef void nettle_armor_init_func(void *ctx);
70 typedef unsigned nettle_armor_encode_update_func(void *ctx,
75 typedef unsigned nettle_armor_encode_final_func(void *ctx, uint8_t *dst);
77 typedef int nettle_armor_decode_update_func(void *ctx,
83 typedef int nettle_armor_decode_final_func(void *ctx);
89 #endif /* NETTLE_TYPES_H */