Energy-efficient Dynamic Pairwise Key Establishment Algorithm for Sensor Network

Concerning the defects in key pre-distribution schemes such as storage heavyload,bad extendibility,a energy-efficient dynamic pairwise key establishment algorithm (EE-DPKEA) was proposed. The algorithm adopted the clustered-based scheme to establish pairwise keys,utilized the energy of each node in equilibrium and prolonged the life of sensor networks. Simulation results show that EE-DPKEA is better than the traditional key pre-distribution scheme in many aspects such as security,storage and communication overhead,key connectivity and energy load balancing.