76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
/* aes_keyschedule.h */
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/*
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file aes_keyschedule.h
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* \email daniel.otte@rub.de
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* \author Daniel Otte
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* \date 2008-12-30
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* \license GPLv3 or later
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* \ingroup AES
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*/
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#ifndef AES_KEYSCHEDULE_H_
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#define AES_KEYSCHEDULE_H_
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#include "aes_types.h"
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/**
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* \brief initialize the keyschedule
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*
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* This function computes the keyschedule from a given key with a given length
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* and stores it in the context variable
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* \param key pointer to the key material
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* \param keysize_b length of the key in bits (valid are 128, 192 and 256)
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* \param ctx pointer to the context where the keyschedule should be stored
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*/
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void aes_init(const void *key, uint16_t keysize_b, aes_genctx_t *ctx);
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/**
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* \brief initialize the keyschedule for 128 bit key
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*
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* This function computes the keyschedule from a given 128 bit key
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* and stores it in the context variable
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* \param key pointer to the key material
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* \param ctx pointer to the context where the keyschedule should be stored
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*/
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void aes128_init(const void *key, aes128_ctx_t *ctx);
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/**
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* \brief initialize the keyschedule for 192 bit key
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*
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* This function computes the keyschedule from a given 192 bit key
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* and stores it in the context variable
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* \param key pointer to the key material
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* \param ctx pointer to the context where the keyschedule should be stored
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*/
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void aes192_init(const void *key, aes192_ctx_t *ctx);
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/**
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* \brief initialize the keyschedule for 256 bit key
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*
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* This function computes the keyschedule from a given 256 bit key
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* and stores it in the context variable
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* \param key pointer to the key material
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* \param ctx pointer to the context where the keyschedule should be stored
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*/
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void aes256_init(const void *key, aes256_ctx_t *ctx);
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#endif /* AES_KEYSCHEDULE_H_ */
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