Cluster Key Scheme Based on Bilinear Pairing for Wireless Sensor Networks

Abstract

The past security policy about public key management strongly relied on the key matrix which was preset by the base station or generated by the algorithm embedded in the nodes, then to exchange the public key with others to finish the security communications, but a lot of public keys were stored in the nodes, which consumed much energy and might be captured and gained by the attacked nodes. In this chapter, we adopt the bilinear pairing theory to the public key generation and management which does not require the public key in the nodes and applies the node’s information to the public keys, which may reduce the cost of managing the public keys and enhances the security of key management; then we propose a cluster key distributed scheme on the basis of clustering by using the bilinear pairing key management in the wireless sensor network and demonstrate its feasibility and security theoretically.