摘要： 多媒体网络会议是一类重要的网络应用，为网络会议提供安全支持是一项必要的工作。该文介绍了会话初始协议（SIP）和域间网络会议模型，分析了网络会议安全框架的设计原则，提出了完整的安全框架，讨论了安全框架和网络会议管理功能的结合问题，给出了一个信令流程实例。

关键词: 会话初始协议, 网络会议, 安全框架

Abstract: Multimedia network conference is an important network application. The security support of implementing the network conference is necessary. This article firstly introduces the session initiation protocol and the inter-domain network conference model; then, it analyzes the security framework principles and presents the full design; finally, it combines the security framework with the network conference management functions and presents an example of signaling flow.

Key words: Session initiation protocol, Network conference, Security framework

中图分类号: 

• TP 302.1