15 / 2015-10-10 15:23:57

A lightweight and security key management for WSN

wireless sensor networks；communication protocol；Hamilton algorithm；key management；security

Sophisticated key management schemes and protocols, whose main objective is to provide secure and reliable communication. But the design of it meet some challenges in wireless sensor networks , whose intrinsic properties make it difficult. In this paper, A lightweight and high security key management based on ECC and ElGamal was proposed. In the scheme，the key pool is structured by the Hamilton algorithm ,in which a layer network model is given，each lay has a servicer and control center, and session key was generated by ElGamal key agreement. The performance and simulation analysis shows, this scheme was superior to the traditional key pre-distribution schemes, not only computation cost and communication cost could be decreased, but good network connectivity，suitable for wireless sensor networks.