BF_ENCRYPT
BF_ecb_encrypt(&(plain_data[n][0]), out, &key, BF_ENCRYPT);
BF_ecb_encrypt(key_data, out, &key, BF_ENCRYPT);
&key, iv, BF_ENCRYPT);
&key, iv, &n, BF_ENCRYPT);
len - 13, &key, iv, &n, BF_ENCRYPT);