基于LKH的分层式多播密钥更新机制的优化方案  

A Optimal Program of Hierarchical Secure Mulicast Rekeying based on LKH

作　　者：胡雯[1] 许勇[1] 童文[1] 刘淑影[1] 

机构地区：[1]安徽师范大学计算机应用技术系,安徽芜湖241003

出　　处：《计算机安全》2013年第5期6-8,共3页Network & Computer Security

基　　金：安徽省自然科学基金资助项目(11040606M137)异构环境下可缩放可靠安全多播密钥更新技术

摘　　要：随着互联网的发展,多播技术被越来越多地应用在一些主流的服务中。例如,视频会议、IP电视、远程教育等。IP多播的安全性问题限制了其广泛使用,为了保护通信的机密性,在多播组中仅仅给予合格的组成员相应的密钥用于通信。密钥管理是IP多播的一个基本问题,密钥管理的目的是为了组成员在一个多播期间形成、更新、传输密钥,以及在传输过程中提供密钥的保密性。回顾了几种经典的密钥管理方法,并提出了一种基于LKH的分层式密钥更新的优化方案,最后与其他方法进行了比较。With the development of the Internet,multicast technology is used popularly in many mainstream applications.For example,video conferencing,IPTV,remote education.Security problems of IP Multicast limit its development,in order to protect the confidentiality of communications,multicast group only give the key to qualified members of the group for communication.Key management is a basic problem of the IP multicast,the aim of key management for multicast is forming keys during a multicast group session,update,transport keys,and providing the confidentiality.In this paper,we review several typical key management method,and propose a scheme which based on LKH hierarchical key optimization program,At last,we make a comparision between our method and others.

关 键 词：多播安全 密钥更新 LKH 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]