Energy-efficient Secure Topology Control Protocol for Wireless Sensor Networks

Saving energy and security are a pair of contradictions demand of application research in wireless sensor networks(WSN).In order to reconcile this pair of contradictions,energy-efficient secure topology control protocol(ESTCP),an energy-efficient secure topology control protocol for wireless sensor networks is presented.In ESTCP,structured topology is formed according to node locations.In order to control new nodes in different situations securely adding to network,techniques of one way hash chain and symmetric cryptographic key are adopted in ESTCP.And temporal clusters are formed among new nodes for reducing energy consumption caused by new nodes authentication.Analysis and simulation results show that ESTCP effectively guarantees the security of topology control in consuming less resource.