安全组播密钥管理方案研究

Research of Security Multicast Key Management

随着组播应用的不断发展,其安全性尤其是组播密钥管理成为热点问题。本文对基于逻辑密钥树的集中控制方案进行了分析和改进。改进方案在不增加组播成员密钥的存储量的情况下,能够降低密钥更新所需要的网络流量和带宽占用,具有一定的可行性。

Multicast communication is used more and more widely.its security especially multicast key management has become hot problem.This paper analysis the centralized control scheme based on logical key hierarchy and gives an improvement.the improvement scheme can decreases the network communication overhead,and the key stores of each member is not increased.this scheme is pratical.