/* AES128 decryption: Given AES128 key and 16 bytes cipher text, plain text of 16 bytes is computed The AES implementation is in mode ECB (Electronic Code Book). 
aes_decrypt */
void aes_decrypt(UINT8 *state, UINT8 *key)
/* AES128 decryption: Given AES128 key and 16 bytes cipher text, plain text of 16 bytes is computed The AES implementation is in mode ECB (Electronic Code Book). 
aes_decrypt */
void aes_decrypt(UINT8 *state, UINT8 *key)
{
    expandKey(expandedKey, key);
    aes_decr(state, expandedKey);
}