contiki/core/lib/aes-128.h
2015-06-15 20:20:07 +01:00

83 lines
2.5 KiB
C

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