A Credit based Security Scheme (CBSS) for Multihop Routing in Wireless Sensor Networks

In most of the scenarios, communication in Wireless Sensor Network (WSN) takes place via multihop routing. Multihop routing does not provide much protection against identity deception, developed through the replay of routing information. This defect can be exploited by an opponent to launch several harmful attacks or even attacks that destroy the routing protocols, misdirecting the network traffic which results in disastrous consequences. In order to secure the multihop routing in WSNs from the adversaries, a Credit Based Security Scheme (CBSS) for WSN is proposed. CBSS, not only reduce the negative impacts from intruders but it also proves energy-efficient by incorporating the trustworthiness of the nodes into the routing decisions. The focus of this paper is to increase the Packet Delivery Ratio and offer an energy efficient route to the base station even in the presence of wormhole attack by incorporating Credit Based Security Scheme (CBSS). CBSS is proved effective through extensive evaluation with simulation using NS2.