1 /* aes_keyschedule.h */
3 This file is part of the AVR-Crypto-Lib.
4 Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * \file aes_keyschedule.h
21 * \email bg@nerilex.org
24 * \license GPLv3 or later
28 #ifndef AES_KEYSCHEDULE_H_
29 #define AES_KEYSCHEDULE_H_
31 #include "aes_types.h"
33 * \brief initialize the keyschedule
35 * This function computes the keyschedule from a given key with a given length
36 * and stores it in the context variable
37 * \param key pointer to the key material
38 * \param keysize_b length of the key in bits (valid are 128, 192 and 256)
39 * \param ctx pointer to the context where the keyschedule should be stored
41 void aes_init(const void *key, uint16_t keysize_b, aes_genctx_t *ctx);
44 * \brief initialize the keyschedule for 128 bit key
46 * This function computes the keyschedule from a given 128 bit key
47 * and stores it in the context variable
48 * \param key pointer to the key material
49 * \param ctx pointer to the context where the keyschedule should be stored
51 void aes128_init(const void *key, aes128_ctx_t *ctx);
54 * \brief initialize the keyschedule for 192 bit key
56 * This function computes the keyschedule from a given 192 bit key
57 * and stores it in the context variable
58 * \param key pointer to the key material
59 * \param ctx pointer to the context where the keyschedule should be stored
61 void aes192_init(const void *key, aes192_ctx_t *ctx);
64 * \brief initialize the keyschedule for 256 bit key
66 * This function computes the keyschedule from a given 256 bit key
67 * and stores it in the context variable
68 * \param key pointer to the key material
69 * \param ctx pointer to the context where the keyschedule should be stored
71 void aes256_init(const void *key, aes256_ctx_t *ctx);
73 #endif /* AES_KEYSCHEDULE_H_ */