Detection and prevention mechanism for Blackhole attack in Wireless Sensor Network

Wireless Sensor Networks (WSNs) are prone to various attacks in which Blackhole a kind of Denial of Service (DoS) attack is very difficult to detect and defend. In blackhole attack, an intruder captures and re-programs a set of nodes in the network to block the packets they receive instead of forwarding them towards the base station. As a result any information that enters the blackhole region is captured and not able to reach destination causing high end-to-end delay and low throughput. Previously little amount of work is done for detection and prevention of the Blackhole attack in the WSN making its detection and prevention very crucial as per network performance is concerned. In this paper initially the affect of Blackhole attack is measured on the network parameters followed by the proposal of a novel technique for the detection and prevention of Blackhole attack in WSN.