摘要： 基于公钥密码学数学基础，提出了一种安全有效的组播协议，它的密钥管理集中在当地的组播子网中实现。该协议利用了组播主干网拓扑结构并同时保持了它的有效性和可扩展性。

关键词: 组播, 组播主干网, 组播路由, 组播子网

Abstract: This paper proposes a secure and efficient multicast protocol for Internet based on public cryptosystem, in which the key management only occurs in the local subgroups. The protocol takes advantage of multicast backbone(Mbone) topology. It maintains the scalability and efficiency of Mbone.

中图分类号: 

• TP393.08