2 * Copyright (C) 2013 Tobias Brunner
3 * Hochschule fuer Technik Rapperswil
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
24 typedef struct iv_gen_t iv_gen_t
;
29 * Generic interface for initialization vector (IV) generators.
34 * Generates an IV and writes it into the buffer.
36 * @param seq external sequence number
37 * @param size size of IV in bytes
38 * @param buffer pointer where the generated IV will be written
39 * @return TRUE if IV allocation was successful, FALSE otherwise
41 bool (*get_iv
)(iv_gen_t
*this, u_int64_t seq
, size_t size
,
42 u_int8_t
*buffer
) __attribute__((warn_unused_result
));
45 * Generates an IV and allocates space for it.
47 * @param seq external sequence number
48 * @param size size of IV in bytes
49 * @param chunk chunk which will hold the generated IV
50 * @return TRUE if IV allocation was successful, FALSE otherwise
52 bool (*allocate_iv
)(iv_gen_t
*this, u_int64_t seq
, size_t size
,
53 chunk_t
*chunk
) __attribute__((warn_unused_result
));
56 * Destroys an IV generator object.
58 void (*destroy
)(iv_gen_t
*this);
61 #endif /** IV_GEN_H_ @}*/