Contiki 2.6
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00001 /* 00002 * Copyright (c) 2008, Swedish Institute of Computer Science. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * This file is part of the Contiki operating system. 00030 * 00031 * $Id: cc2420-aes.h,v 1.3 2010/03/15 23:04:54 nifi Exp $ 00032 */ 00033 00034 /** 00035 * \file 00036 * Interface to the CC2420 AES encryption/decryption functions 00037 * \author 00038 * Adam Dunkels <adam@sics.se> 00039 */ 00040 00041 #ifndef __CC2420_AES_H__ 00042 #define __CC2420_AES_H__ 00043 00044 /** 00045 * \brief Setup an AES key 00046 * \param key A pointer to a 16-byte AES key 00047 * \param index The key index: either 0 or 1. 00048 * 00049 * This function sets up an AES key with the CC2420 00050 * chip. The AES key can later be used with the 00051 * cc2420_aes_cipher() function to encrypt or decrypt 00052 * data. 00053 * 00054 * The CC2420 can store two separate keys in its 00055 * memory. The keys are indexed as 0 or 1 and the key 00056 * index is given by the 'index' parameter. 00057 * 00058 */ 00059 void cc2420_aes_set_key(const uint8_t *key, int index); 00060 00061 00062 /** 00063 * \brief Encrypt/decrypt data with AES 00064 * \param data A pointer to the data to be encrypted/decrypted 00065 * \param len The length of the data to be encrypted/decrypted 00066 * \param key_index The key to use. The key must have previously been set up with cc2420_aes_set_key(). 00067 * 00068 * This function encrypts/decrypts data with AES. A 00069 * pointer to the data is passed as a parameter, and the 00070 * function overwrites the data with the encrypted data. 00071 * 00072 */ 00073 void cc2420_aes_cipher(uint8_t *data, int len, int key_index); 00074 00075 00076 #endif /* __CC2420_AES_H__ */