μTESLA广播认证协议优化研究  

Research on Optimization of μTESLA Broadcast Authentication Protocol

作　　者：陈骁[1] 郭达伟[1] 张国庆[1] 李嘉为[1] 

机构地区：[1]西北工业大学自动化学院,西安710129

出　　处：《传感技术学报》2009年第11期1623-1627,共5页Chinese Journal of Sensors and Actuators

摘　　要：广播认证是无线传感器网络能够正常工作的重要保证。μTESLA协议凭借其低成本高效率的加密技术和认证框架,在一定程度上符合了无线传感器网络的特点和安全需求。深入研究了μTESLA协议的实现过程,并针对广播周期交界处易出现的广播数据包无法正常认证的问题,提出了"认证漂移"的概念和一种基于阈值的多重认证机制(M-μTESLA)。研究结果表明,该机制有效改善了μTESLA协议的性能。Broadcast authentication is the important guarantee that can keep wireless sensor networks working normally.Because of its cost-effective encryption and authentication framework,μTESLA protocol is to be in line with the characteristic and security needs of wireless sensor networks to some extent.In this paper,the implementation procedure of μTESLA protocol was researched deeply.Then the concept of ＂Authentication Drift＂ and threshold-based multiple authentication mechanism（M-μTESLA）were put forward, against the common problem that the broadcast packets might not be authenticated normally in the junction of cycles. The research result indicates that the performance of μTESLA protocol could be improved by this mechanism effectively.

关 键 词：无线传感器网络 广播认证 M-μTESLA 认证漂移 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]