ParagonIE_Sodium_Core_AES::bitsliceDecryptBlock( ParagonIE_Sodium_Core_AES_Expanded $skey, ParagonIE_Sodium_Core_AES_Block $q ): void

503    public static function bitsliceDecryptBlock(504        ParagonIE_Sodium_Core_AES_Expanded $skey,505        ParagonIE_Sodium_Core_AES_Block $q506    ) {507        self::addRoundKey($q, $skey, ($skey->getNumRounds() << 3));508        for ($u = $skey->getNumRounds() - 1; $u > 0; --$u) {509            $q->inverseShiftRows();510            self::invSbox($q);511            self::addRoundKey($q, $skey, ($u << 3));512            $q->inverseMixColumns();513        }514        $q->inverseShiftRows();515        self::invSbox($q);516        self::addRoundKey($q, $skey, ($u << 3));517    }