无线传感网多多项式密钥分配方案研究

Multi-polynomials Key Distribution Scheme for Wireless Sensor Networks

在无线传感器网络大规模应用的过程中,网络安全问题面临着诸多挑战.传感器节点具有计算、存储、能量等条件限制,在有限的环境中,如何在保证传感器网络性能的同时实现安全的最大化,是研究者面临的一大难题.本文设计了一种基于多多项式的密钥分配方案,通过引入随机密钥的方式,在牺牲少量网络性能的前提下,实现网络节点确定性连通,同时避免了常规多项式方案面临的"t-secure"问题,实现网络安全性的极大提升.最后本文通过实验对方案的计算资源和存储资源占用情况进行统计,结果表明与Blundo算法相比,本文提出的方案使传感器节点在确定建立连通的同时避免了"t-secure"问题,从而极大的提升了网络安全性.

Network security issues are facing many challenges in large-scale applications of wireless sensor networks（WSNs）.Sensor nodes suffer from several scare resources such as restricted sensing and communication ranges,limited battery power,storage and CPU.In such limited resources,ensuring the performance and security ofWSNs is becominga great problem for researchers.This paper proposes a new key distribution scheme which is based on multi polynomials,it realize the deterministic connectivity of network nodes without seriously affecting the network performance and “t-secure” problem by introducing the random key,ultimately enhance the security of the network greatly.In the end,the scheme proposed in this paper statistics about resources used in computation and storage.Experimental result indicates that the scheme guarantees the deterministic connections and avoids “t-secure” issues at the same time compared with Blundo algorigthm,which greatly improve network security.