一种安全组播传输策略

IP组播建立在一个非封闭的传输系统上,为了实现安全组播,除了密钥加密信息,还需要下层的通讯子网提供支持,这样才能彻底实现安全封闭的组播通讯。其中讨论了一些流行的密钥管理框架,密钥更新方案以及用户管理机制。通过这些方案可以防止信息泄漏、Dos攻击、组攻击、伪造信息,从而实现了组播的安全通讯。

The strategy of the secure multicast communications

IP multicast is based on an unclosed system. To make a secure multicast, the secure multicast should be implemented in the application layer and the Internet layer. The article discusses the secure transmission, the key management and the group member management. Through these methods multicast communications can resist the message leakage, Dos attacks, group attacks and the fake messages.