Security against Selective Forward Attack in Wireless Sensor Network

Abstract

Wireless sensor networks (WSNs) are being increasingly deployed for various applications such as object tracking and monitoring, precision agriculture, controlling nuclear reactors, detecting seismic activities, security and surveillance, navigational activities, industrial automation, and so on. In selective forwarding attack, malicious nodes may refuse to forward certain messages and simply drop them, ensuring that they are not propagated any more. In this paper we have proposed a defensive technique. Our approach is divided into mainly three phases: In first phase the node discover a path and its neighbor nodes, in second phase when the event is generated and data is propagated in multipath and is checked whether the data reached is correct or not, and in the final phase if any error is detected then a MONITOR packet is generated and the malicious node is removed.