基于分簇无线传感器网络密钥预分配管理方案研究

Research of the Pre-distribution Management Scheme of the Wireless Sensor Network Key Base on Cluster

针对无线传感器网络节点计算和存储能力有限，能量受限等特点，提出了一种新的分簇传感器网络密钥预分配管理方案KDNKPD。该方案借助于Blundo二元多项式函数和密钥分发节点建立节点与簇头间的安全通信，能够适应簇首节点的接轮选举并解决了Blundo方案的安全问题。通过安全分析与性能分析比较和仿真实验表明，该方案提高了网络的安全性，减少了传感器节点的存储开销和计算开销。

Key distribution protocol is a fundamental securiW service in sensor networks. In this paper, we propose a key distribution protocol integrating 3-dismension grid model with multiple hash algorithm. This protocol, which not only has the advantage of high security performance and low overhead, but also can substantially improve network connectivity, is very suitable for wireless sensor networks in which the nodes are resource-constrained and the network topology changes highly.