Detecting and Preventing Wormhole Attacks in Wireless Sensor Networks using Secure Routing Algorithms

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A.Thomas Paul Roy


The resource constrained ad hoc wireless sensor network is versatile yet vulnerable to attacks. The communication infrastructure with less sensor networks may interact with the sensitive data in the hostile environment where the nodes may fail and new nodes may join the network, which may leads to the susceptibility to many kinds of security attacks. An adversary can eavesdrop on all the messages within the emission area, by operating in promiscuous mode. So, it is imperative that the protection of the network routing from the adversaries for the wireless ad hoc sensor network must be adopted for critical missions. A particularly devastating attack, predominant in today’s world is the wormhole attack. In this paper, the wormhole attack made by the malicious attacker in sensor networks has been implemented and also the number of Guard nodes required has been decided and implemented. Functions of the guard nodes like local inter-node collaborative data fusion and decision fusion to detect, isolate and prevent any further attacks is to be implemented. Simulations have been performed under different scenarios and from the results of simulation we have observed that our scheme is capable of improving the security in resource constrained wireless sensor networks.

Keywords: Wireless Sensor Network, AODV, Wormhole


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