Attack Resilient Dynamic Key Management Scheme for Wireless Sensor Networks

Abstract Most of the existing schemes for key management are static and meant for static WSN. However, dynamic key management for dynamic WSN is the potential research area to safeguard WSN from adversaries besides being flexible. The existing schemes in WSN focused more on the energy efficiency rather than security. To address this problem, earlier we implemented a dynamic key management scheme for dynamic WSN with energy efficiency. It is cluster based and broadcast authenticated which could handle dead nodes and compromised cluster head efficiently. In this paper we proposed our security scheme to make it resilient to various attacks like black hole, carousel, rushing, wormhole, Sybil and flooding attack. Extensive simulations performed using NS-2 Network Simulator showed that the proposed approach is capable of preventing such attacks in WSN. The proposed scheme shows significant performance improvement in terms of throughput, energy efficiency, delay performance, dropping and packet delivery ratio.