Cluster-Based Strategies for Public Key Authentication in Wireless Sensor Networks

This paper replaces Public Key Cryptography(PKC)with a hash algorithm, and presents a strategy for public key authentication based on energy band and position clustering algorithm (SPABEP) in wireless sensor networks, which could effectively reduce memory consumption. Improving SPABEP, this paper also presents a strategy for public key authentication based on deployment knowledge with cluster structure (SPABDK) , which could optimize the relationship between memory consumption and communication load. The simulation indicates that the above strategies have a better performance than the traditional public key authentication strategy in energy saving.