Wormhole Attack Detection in Mobile Adhoc Networks

ABSTRACT Due to the nature of wireless transmission medium, Mobile Ad-Hoc Networks (MANET) have more number of security issues compared to wired networks. Among all the security issues, wormhole attack is observed to be a very serious security threat over MANET and it is type of a network layer attack. In this attack, two selfish nodes which are geographically very far away from each other form a tunnel between each other to hide their actual location in the network and try to believe that they are true neighbors in the network and therefore make communication through the wormhole tunnel. Consequently, the two selfish nodes will completely interrupt the communication channel. The aim of this research work is to develop a new model for wormhole detection is developed which is based on localization technique with polynomial encryption technique. The AODV protocol is used to analyze the performance of proposed method to detect wormhole attacks. It is compared with the existing technique on the basis of number of dead nodes, alive nodes and throughput. The proposed model achieves better results as compared to the existing technique.