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., 51 Franklin Street, Fifth Floor, Boston,
23 #ifndef NETTLE_TYPES_H
24 #define NETTLE_TYPES_H
26 /* Pretend these types always exists. Nettle doesn't use them. */
27 #define _STDINT_HAVE_INT_FAST32_T 1
29 #include "nettle-stdint.h"
35 /* Randomness. Used by key generation and dsa signature creation. */
36 typedef void nettle_random_func(void *ctx,
37 unsigned length, uint8_t *dst);
39 /* Progress report function, mainly for key generation. */
40 typedef void nettle_progress_func(void *ctx, int c);
42 /* Realloc function, used by struct nettle_buffer. */
43 typedef void *nettle_realloc_func(void *ctx, void *p, unsigned length);
46 typedef void nettle_set_key_func(void *ctx,
50 /* Uses a void * for cipher contexts.
52 For block ciphers it would make sense with a const void * for the
53 context, but we use the same typedef for stream ciphers where the
54 internal state changes during the encryption. */
56 typedef void nettle_crypt_func(void *ctx,
57 unsigned length, uint8_t *dst,
61 typedef void nettle_hash_init_func(void *ctx);
62 typedef void nettle_hash_update_func(void *ctx,
65 typedef void nettle_hash_digest_func(void *ctx,
66 unsigned length, uint8_t *dst);
68 /* ASCII armor codecs. NOTE: Experimental and subject to change. */
70 typedef unsigned nettle_armor_length_func(unsigned length);
71 typedef void nettle_armor_init_func(void *ctx);
73 typedef unsigned nettle_armor_encode_update_func(void *ctx,
78 typedef unsigned nettle_armor_encode_final_func(void *ctx, uint8_t *dst);
80 typedef int nettle_armor_decode_update_func(void *ctx,
86 typedef int nettle_armor_decode_final_func(void *ctx);
92 #endif /* NETTLE_TYPES_H */