Abstract
One of the challenging security threats to wireless mesh network (WMN) is their vulnerability to routing protocols. This vulnerability is mainly caused by certain internal attacks, one of which is known as a wormhole attack. This attack is launched by two or more malicious nodes which gives a false illusion of shortest path through them via a tunnel. They formed a tunnel via encapsulation, which restricts the increment of hop count during the traversal through intermediate nodes and therefore launches a wormhole attack between source and destination. In this paper, we proposed a detection mechanism based on the calculation of round trip time (RTT) and processing time to identify the malicious nodes forming wormhole attack. Our proposed work prevents the AODV routing protocol against the wormhole attack in WMNs. The simulation of our proposed work had done using NS-3 simulator, and the results show that the performance of our detection algorithm improves over the existing detection techniques against wormhole attack.
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