基于IP Security的安全多播体系结构的研究与分析

Research and Analysis of Secure Multicast Architecture based on IP Security

1 引言随着分布式多媒体及分布式处理的发展,多播逐渐成为构建面向群组服务平台的一种重要通信模式,并且得到了成功的应用。然而,目前的多播平台对于安全问题考虑得比较少,在一定程度上存在着安全隐患。例如,在Internet及ATM等集成网络中,多播流量与其他网络流量共享网络资源。

On the base of analyzing the security problem of the current IP multicast research and application, this paper introduces an architecture of secure IP multicast based on IPSec. identifies the basic components and functions and specifies how these components interact with each other and the surrounding systems. Especially,the group key management mechanism is analyzed and compared in detail. This architecture takes advantage of the IPSec mechanism and expands it. Therefore, the simplicity, flexibility. and ease of incorporation within existing systems are its main features.