普适计算广播安全协议的研究  

Research on broadcast security protocol of ubiquitous computing

作　　者：李远杰[1,2] 高伟勋[1] 杨凡[1] 曹奇英[3] 

机构地区：[1]东华大学信息科学与技术学院,上海201620 [2]上海立信会计学院,上海201620 [3]东华大学计算机科学与技术学院,上海201620

出　　处：《计算机工程与应用》2009年第19期34-36,共3页Computer Engineering and Applications

基　　金：教育部科学技术研究重点项目(No.104086)~~

摘　　要：广播是普适计算环境中最基本的一种通信方式。对广播通信安全协议的研究显得十分重要。点对点的鉴别模式并不适用于广播安全;数字签名方法则对普适计算硬件要求太高。给出一种基于对称密钥算法的安全鉴别方案,通过对密钥发布方式的改进,满足普适计算硬件环境的广播安全鉴别,对μTESLA进行改进,避免了其由于时间同步错误导致的节点攻击。改进的方案获得更高的安全性能。Broadcast is the most basic one means of communication in ubiquitous computing computing environments.It is very important to research broadcast communication security protocol.Point-to-point identification model does not suitable for broadcast security;digital signature method is too high to hardware request of ubiquitous computing.In this paper,a safety program to identify is brought forward based on symmetric key algorithm,the key issue way＇s improvement met the broadcasting hardware security identification in ubiquitous computing environment,and the ~TESLA＇s avoids the node attack because of time synchronization errors.The improved program obtains a higher safety performance.

关 键 词：普适计算 广播安全协议 对称密钥算法 节点攻击 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]