Published Paper Details:

Trust based schemes have become vital role in providing security and reliability for various applications of Wireless Sensor Networks (WSN). Due to open environment sensor networks are vulnerable to attackers while routing data which degrade QoS. To overcome this problem, we propose Trust Based Secure Key Sharing scheme (TBSK) for cluster based WSN. In this scheme the network is partitioned into clusters and data transmission from Cluster Head (CH) to Base Station (BS) via inter-cluster is done by sharing lightweight secret keys. TBSK analyses dynamic trust degree value of single hop nodes on recommendation and experience to identify malicious nodes within the cluster. The goal is to ensure reliable data transmission and mitigate malicious node that exhibits malicious activities by dropping packets. The simulation experiment is carried on NS2 and performance results are analyzed in terms of packet delivery ratio, throughput, average end-to end delay and communication overhead.