论文部分内容阅读
本文针对大型动态多播组的特点,提出了一种可扩展的分布式密钥管理协议。协议中所有组成员共享一个用来保证安全通信的组密钥。协议支持多播组的动态性,组中各成员可以自由的加入或离开。通过对协议安全性分析,证明了协议能保证组密钥安全、向前访问安全和向后访问安全。协议对计算量和存储空间的需求不高。
In this paper, according to the characteristics of large dynamic multicast group, a scalable distributed key management protocol is proposed. All group members in the agreement share a group key used to ensure secure communications. The protocol supports the dynamics of multicast groups, and members of the group are free to join or leave. Through analyzing the protocol security, it is proved that the protocol can guarantee group key security, forward access security and backward access security. The demand for computation and storage space is not high.