基于逻辑密钥树的组播密钥管理研究进展  

A Survey of Group Key Management Based on Logical Key Hierarchy

作　　者：李晖[1] 刘志国[1] 程琳静[1] 胡也[1] 

机构地区：[1]北京邮电大学计算机科学与技术学院,北京100876

出　　处：《北京理工大学学报》2011年第5期547-551,共5页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(61070207)

摘　　要：介绍了基于逻辑密钥树的组播密钥管理方案,以及针对逻辑密钥树的改进方案.分析了各个方案如何从组播应用的要求和限制出发,在满足安全需求、提高服务质量的同时尽量降低开销,指出各个方案都是在安全性、服务质量和开销等3个方面的要求之间进行适当的折衷与平衡.通过对各个改进方案的出发点及其优缺点的分析,为如何根据实际情况设计适合具体组播业务的密钥管理方案提供了参考.The group key management scheme that adopts the means of logical key hierarchy （LKH） is introduced, together with several improved schemes based on LKH. According to the needs and limitations of multicast applications in the schemes, the solutions to provide reliable security and high quality service at a minimal cost are analyzed. It is concluded that all these schemes make certain compromises and balances among security, quality of service and cost. The analysis of the motivation as well as the advantages or disadvantages for every improved scheme provides references for designing group key management scheme of specific multicast application according to the actual situation.

关 键 词：组播 密钥管理 逻辑密钥树 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]