无线传感网组合认证加密算法设计与分析

文章分析了当前无线传感网中通用的关联数据加密认证方案,分别存在设计复杂、能耗较高、误差较大以及安全性不强等问题,不适合安全性要求较高却资源严格受限的传感器节点;提出一个高效的组合认证加密算法,算法将OFB模式和CTR模式有机地组合,采用QBC-MAC的变形进行消息认证,通过加入输入值得到不同的密钥流,建立虚拟专用连接,使用双因子消息认证等方式,比通用方案具有更强的安全性;通过仿真实验与其它关联数据加密认证算法比较,结果表明该算法在网络能耗和吞吐量方面也具有明显的优势。

Design and Analysis of Combined Authenticated Encryption Algorithm for Wireless Sensor Network

The paper analyzed the general schemes of data authentication encryption in current wireless sensor network,its disadvantages are Complex design,higher energy consumption,larger error,and weak security,and not suitable for the sensor nodes with high security requirement and strictly limited resources.The paper presented an efficient combination authenticated encryption algorithm.In the algorithm,Output Feedback mode and Counter mode was organically combined,the deformation by QBC-MAC was used for message authentication,different key stream was obtained through the input,virtual private connection was established,two-factor authentication messages was used,etc.,which had a stronger program than the general security.Compared with other associated data authentication encryption algorithms,the simulation results show that the algorithm in this paper has obvious advantages of energy consumption and throughput in the network.