BF_BLOCK
if (!TEST_mem_eq(&(bf_cipher[n][0]), BF_BLOCK, &(data[0]), BF_BLOCK))
if (!TEST_mem_eq(&(bf_plain[n][0]), BF_BLOCK, &(data[0]), BF_BLOCK))
if (!TEST_mem_eq(&(cipher_data[n][0]), BF_BLOCK, out, BF_BLOCK))
if (!TEST_mem_eq(&(plain_data[n][0]), BF_BLOCK, out, BF_BLOCK))