基于数字证书的树型结构安全多播方案  

A TREE-TYPE SECURE MULTICAST SCHEME BASED ON DIGITAL CERTIFICATE

作　　者：田文春[1] 韦岗[1] 等 

机构地区：[1]华南理工大学无线电与自动控制研究所，广州510640

出　　处：《电子与信息学报》2002年第12期1815-1820,共6页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(69896246)

摘　　要：该文提出一种基于数字证书的安全多播方案,采用树型的多播拓扑结构。多播树中的每个节点都有一个标识其身份的数字证书,除了成员身份认证外,还可以安全地分发会话密钥和实现会话数据的认证,因而减少了多播群密钥管理的复杂度;由于采用分层的树型多播结构,成员加入和退出有了更大的可扩展性。In this paper, a new scheme based on digital certificate is proposed to implement secure multicast. In the scheme, tree-type multicast topology (multicast tree) is adopted. Each node of the multicast tree possesses a digital certificate which may indicate its identity in the multicast group. Also the certificate may be used for distributing session-key and authenticating session data. So the complexity of managing multicast group key is reduced. And because of tree-type structure of the multicast group, the joining and leaving for multicast member is more scalable.

关 键 词：数字证书 树型结构 安全多播 加密 树型多播结构 认证中心 密钥管理 安全性 复杂度 

分 类 号：TN918[电子电信—通信与信息系统]