无线传感网密钥管理方案分析比较

Analysis and comparison of key management schemes in WSN

WSN由于设置方便、设备位置灵活等优势在现实中被广泛应用。但WSN采用公开访问的无线通信信道以及网络安全路由协议的缺陷使WSN面临巨大的安全威胁。在文章中首先分析了选择网络安全协议考虑的因素,随后介绍了基于分布式、集中式、分散式三种安全机制的工作原理及其代表算法,最后通过在MATLAB模拟实验比较了各自的性能,实验证明基于分散式密钥分配方案CKP算法在不同环境中性能优于其他两种方案。

WSN has been widely used due to the advantages of convenient installation and flexibility. But WSN uses the public access wireless communication channel and the network security routing protocol, which causes it to face huge security threat. This paper begins with an analysis of the factors when choosing the network security protocols, then introduces the working principles and algorithms of three security mechanisms-distributed, centralized and decentralized. Finally, through the MATLAB simulation experiments, the performances of these schemes are compared. The experimental results show that in different environments, CKP algorithm based on decentralized key distribution scheme is better than the other two.