aes_ex1_encryptDecrypt.c

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//******************************************************************************
//******************************************************************************
#include "driverlib.h"
 
// Encrypted data
uint8_t DataAESencrypted[16] = {
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
 
// Decrypted data
uint8_t DataAESdecrypted[16] = {
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
 
 
void main(void){
    // stop watchdog
    WDT_A_hold(WDT_A_BASE);
 
    uint8_t Data[16] = {
    0x00, 0x11, 0x22, 0x33,
    0x44, 0x55, 0x66, 0x77,
    0x88, 0x99, 0xaa, 0xbb,
    0xcc, 0xdd, 0xee, 0xff
    };
 
    uint8_t CipherKey[16] = {
    0x00, 0x01, 0x02, 0x03,
    0x04, 0x05, 0x06, 0x07,
    0x08, 0x09, 0x0a, 0x0b,
    0x0c, 0x0d, 0x0e, 0x0f
    };
 
    AES_enableInterrupt(AES_BASE);
 
    // Load a cipher key to module
    AES_setCipherKey(AES_BASE, CipherKey);
 
    // Encrypt data with preloaded cipher key
    AES_encryptData(AES_BASE, Data, DataAESencrypted);
 
    // Decrypt data with keys that were generated during encryption - takes 214 MCLK
    // This function will generate all round keys needed for decryption first and then
    // the encryption process starts
    AES_decryptDataUsingEncryptionKey(AES_BASE, DataAESencrypted, DataAESdecrypted);
 
    // Array DataunAES should now contain the same data as array Data
    while(1){};
}