关键词: 对偶密钥, 传感器网络, 网络安全, 信誉模型

Abstract: Based on the key pre-distribution scheme, a new pair-wise key establishment method was proposed for sensor networks, in which each node was pre-assigned with an initial global key before deployment. And after deployment, the node can dynamically establish different one-hop pair-wise key on the basis of the pre-assigned global initial key. The theoretical analysis and simulation results show that the new algorithm has better probability of direct and indirect pair-wise key establishment than the traditional random pair-wise key establishing scheme for sensor networks.

Key words: pair-wise key, sensor networks, network security, reputation model