一种基于分簇的无线传感器网络动态密钥分发协议  

A Cluster-Based Dynamic Key Distribution Protocol in Wireless Sensor Networks

作　　者：周琴[1] 李腊元[1] 程真[1] 

机构地区：[1]武汉理工大学计算机科学与技术学院,武汉430063

出　　处：《传感技术学报》2009年第7期1002-1006,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金资助(60672137;60773211);教育部高等学校博士基金资助(20060497015);新世纪优秀人才支持计划(NCET-08-0806)

摘　　要：层簇式无线传感器网络具有能量利用率高的优点,目前已经提出了多种基于分簇的路由协议,但这些协议并没有考虑到安全性因素。针对这个问题,提出了一种基于分簇的动态密钥分发协议SDKD,通过综合考虑节点的剩余能量和地理位置信息优化簇头选举机制,并使用哈希函数产生动态密钥加密通信过程。仿真实验表明,SDKD协议与典型的分簇协议LEAP相比,降低了网络能量消耗,并延长了网络生命周期。At present, many routing protocols have been proposed for high energy utilization in cluster-based wireless sensor networks, however, these protocols didn＇t consider the security factor. To address the issue, the paper presents a dynamic key distribution protocol-SDKD based on clustering,it considers both the node＇s residual energy and location information to optimize the cluster head election mechanism,and uses the dynamic key generated by Hash functions to encrypt the communication process. The simulation results show that, compared to the typical clustering protocol LEAP, SDKD cuts down the energy consumption and extends the life cycle of the network.

关 键 词：无线传感器网络 动态密钥分发 分簇 安全 哈希函数 

分 类 号：TP393.17[自动化与计算机技术—计算机应用技术]