基于安全性的无线传感器网络时钟同步算法

摘要

Purpose:Three conventional wireless sensor network clock synchronization algorithms were overviewed, and the security analysis for the most precious and performance FTPS algorithm was given. Method:Aim at the two security defects, con-ventional FTPS algorithm is easy to be hurt by linear regression attack and send time postmark attack, the promotion of security strategy was given, that is adding the constraint condition and the corresponding time unusual detection mechanism. Conclusion:Simulation experiments validate that improved algorithm can better solve the security problems.%对当前3种经典的无线传感器网络时钟同步算法进行了概述,并针对同步精度最高,效果最好的FTSP算法进行了安全性分析.针对分析的两大安全缺陷,即传统FTSP容易遭受线性回归攻击和发送时间标攻击,做出了相应的安全策略改进,即增加了约束条件和相应的时间异常检测机制.通过仿真实验证明改进算法可以解决安全性问题.