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/* nettle-types.h */
/* nettle, low-level cryptographics library
*
* Copyright (C) 2005 Niels Möller
*
* The nettle library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The nettle library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#ifndef NETTLE_TYPES_H
#define NETTLE_TYPES_H
#include "nettle-stdint.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Randomness. Used by key generation and dsa signature creation. */
typedef void (nettle_random_func)(void *ctx,
unsigned length, uint8_t *dst);
/* Progress report function, mainly for key generation. */
typedef void (nettle_progress_func)(void *ctx,
int c);
/* Ciphers */
typedef void (nettle_set_key_func)(void *ctx,
unsigned length,
const uint8_t *key);
/* Uses a void * for cipher contexts.
For block ciphers it would make sense with a const void * for the
context, but we use the same typedef for stream ciphers where the
internal state changes during the encryption. */
typedef void (nettle_crypt_func)(void *ctx,
unsigned length, uint8_t *dst,
const uint8_t *src);
/* Hash algorithms */
typedef void (nettle_hash_init_func)(void *ctx);
typedef void (nettle_hash_update_func)(void *ctx,
unsigned length,
const uint8_t *src);
typedef void (nettle_hash_digest_func)(void *ctx,
unsigned length, uint8_t *dst);
/* ASCII armor codecs. NOTE: Experimental and subject to change. */
typedef unsigned (nettle_armor_length_func)(unsigned length);
typedef void (nettle_armor_init_func)(void *ctx);
typedef unsigned (nettle_armor_encode_update_func)(void *ctx,
uint8_t *dst,
unsigned src_length,
const uint8_t *src);
typedef unsigned (nettle_armor_encode_final_func)(void *ctx, uint8_t *dst);
typedef int (nettle_armor_decode_update_func)(void *ctx,
unsigned *dst_length,
uint8_t *dst,
unsigned src_length,
const uint8_t *src);
typedef int (nettle_armor_decode_final_func)(void *ctx);
#ifdef __cplusplus
}
#endif
#endif /* NETTLE_TYPES_H */
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