rijndael_blockDecrypt
blks = rijndael_blockDecrypt(&cipher, &aeskey, data,
int rijndael_blockDecrypt(cipherInstance *, keyInstance *, const uint8_t *,
rijndael_blockDecrypt(&ci, &ki, in, LL * 8, out);
rijndael_blockDecrypt(&ci, &ki, in, LL * 8, in);