Defense Against On-Off Attack in Trust Establishment Scheme for Wireless Sensor Network

A Wireless Sensor Network (WSN) is successful only when it successfully accomplish the assigned task with strong cooperation among the nodes despite its deployment in the unattended and hazardous environment. Due to the open nature of deployment, WSN is vulnerable to various insider attacks. Therefore, to improve the security and cooperation among the nodes of the network the use of Trust Management System (TMS) is paramount. This paper proposes a lightweight and robust trust management system (DATE) to estimate the trust value among nodes of the WSN. The proposed TMS is developed based on five major components such as reward, severe penalty, lenient penalty, sliding window and misbehavior frequency. Further, this paper only considers the on-off insider attack from various other attacks in TMS. It is evident from the theoretical analysis and simulation results that the proposed TMS is not only achieved better on-off attack detection but also resilient against on-off attack, compared to other proposed techniques.