传感器网络基于动态密钥池的密钥建立方案

针对网络在整个生命周期内的可持续安全性问题,基于动态密钥池技术提出了一个新的对密钥建立方案(KES-D).在此方案中,节点分n次部署,密钥池根据节点部署的次数分代.第i代密钥池由第i-1阶段的密钥池去除m条使用时间最长的二维反向密钥链再加上m条新二维反向密钥链组成.理论分析及模拟结果表明:与适用于多次部署的传感器网络密钥管理方案相比,该方案的抗毁密钥连通率显著提高.

A Pairwise Key Establishment Scheme for Sensor Networks Based on dynamic key pools

To achieve continuous security throughout the lifecycle of sensor networks,a pairwise key establishment is proposed based on dynamic key pools(KES-D). In our scheme,network deployment includes n phases;the key pool is divided into n generations according with the times of network deployment. The ith generation key pool con-sists of keys from the(i-1)th generation key pool except m two-dimensional backward hash key chains whose used time is the longest,and m two-dimensional backward hash key chains. The theoretical analysis and numerical exper-iment show that the proposed scheme can significantly improve the resilient key connectivity as compared with the schemes for multiphases deployment sensor networks.