82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* Copyright (c) 2013, Hasso-Plattner-Institut.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* AES-128.
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* \author
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* Konrad Krentz <konrad.krentz@gmail.com>
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*/
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#ifndef AES_H_
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#define AES_H_
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#include "contiki.h"
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#define AES_128_BLOCK_SIZE 16
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#define AES_128_KEY_LENGTH 16
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#ifdef AES_128_CONF
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#define AES_128 AES_128_CONF
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#else /* AES_128_CONF */
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#define AES_128 aes_128_driver
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#endif /* AES_128_CONF */
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/**
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* Structure of AES drivers.
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*/
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struct aes_128_driver {
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/**
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* \brief Sets the current key.
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*/
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void (* set_key)(const uint8_t *key);
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/**
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* \brief Encrypts.
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*/
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void (* encrypt)(uint8_t *plaintext_and_result);
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};
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/**
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* \brief Pads the plaintext with zeroes before calling AES_128.encrypt
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*/
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void aes_128_padded_encrypt(uint8_t *plaintext_and_result, uint8_t plaintext_len);
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/**
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* \brief Pads the key with zeroes before calling AES_128.set_key
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*/
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void aes_128_set_padded_key(uint8_t *key, uint8_t key_len);
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extern const struct aes_128_driver AES_128;
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#endif /* AES_H_ */
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