NBK: A Novel Neighborhood Based Key Distribution Scheme for Wireless Sensor Networks

Abstract

Location information has been found useful in the design of key pre-distribution schemes in Wireless Sensor Networks (WSNs). In this paper, a novel key management scheme based on location is proposed to enhance the security of the wireless sensor networks. We get the idea from the previous location-based key (LBK) scheme but here the location of a sensor node is described by its neighbors' logical identifiers (IDs). Through an improved authentic process between the sensor nodes, no other special infrastructures are needed to establish pair-wise keys. Further more, the scheme has a bigger probability of key establishment with a lower storage overhead, and it is suited for large scale wireless sensor networks.