lorawan_aes.c

/********************************************************************
 * Copyright (C) 2016 Microchip Technology Inc. and its subsidiaries
 * (Microchip).  All rights reserved.
 *
 * You are permitted to use the software and its derivatives with Microchip
 * products. See the license agreement accompanying this software, if any, for
 * more info about your rights and obligations.
 *
 * SOFTWARE AND DOCUMENTATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
 * MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR
 * PURPOSE. IN NO EVENT SHALL MICROCHIP, SMSC, OR ITS LICENSORS BE LIABLE OR
 * OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH
 * OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY FOR ANY DIRECT OR INDIRECT
 * DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR OTHER SIMILAR COSTS. To the fullest
 * extend allowed by law, Microchip and its licensors liability will not exceed
 * the amount of fees, if any, that you paid directly to Microchip to use this
 * software.
 *************************************************************************
 *
 *                           lorawan_aes.c
 *
 * LoRaWAN AES wrapper file
 *
 ******************************************************************************/

/****************************** INCLUDES **************************************/
#include <stdint.h>
#include <string.h>
#include "AES.h"

/****************************** FUNCTIONS *************************************/
void AESEncodeLoRa(unsigned char* block, unsigned char* key)
{
    uint8_t useKey[16];
    memcpy(useKey, key, sizeof(useKey));
    AESEncode(block, useKey);
}

void AESDecodeLoRa(unsigned char* block, unsigned char* key)
{
    uint8_t useKey[16];
    memcpy(useKey, key, sizeof(useKey));
    AESCalcDecodeKey(useKey);
    AESDecode(block, useKey);
}