Key establishment for layered group-based Wireless Sensor Networks
by Xueping Li, Dengfeng Yang, Rapinder Sawhney
International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC), Vol. 5, No. 3, 2010

Abstract: Establishing pairwise keys for sensors is crucial to secure communications in Wireless Sensor Networks (WSNs). Several key pre-distribution schemes have been proposed to establish pairwise keys, but they are not scalable and suffer from a dramatic degradation of security when the number of compromised sensor exceeds a threshold. In this paper, we propose a Layered Group-based Key Establishment (LGKE) scheme, in which a logic top layer ensures the scalability through an Exclusion Basic System (EBS) technique while a logic low layer adopts a group-based key preload scheme to ensure the security. The security analysis and quantitative evaluation show the superiority of LGKE with regard to scalability, resilience, robustness and communication overhead.

Online publication date: Wed, 17-Mar-2010

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