The main advantage of network coding is that intermediate nodes can coding received packets and send them to next nodes. Using this technique, sender can achieve the maximum throughput on multicast communication. On the other hand, network coding is vulnerable for pollution attack which adversary inject corrupted packet and prevent receivers to restore the original packets. In this research, we are going to study about the way which intermediate node can detect corrupted packets and stop forwarding them although valid packet can pass to the end nodes even if adversary modify the packet.