【摘要】 简要介绍了SIP(会话初始化协议)和SDP(会话描述协议),并针对基于SIP用户移动性的核心问题———认证注册机制进行了研究,给出SIP中本地用户认证注册和漫游用户认证注册的解决方案;同时对其存在的安全性问题进行分析并给出了相应的解决方案。更多还原

【Abstract】 This paper introduces the Session Initiation Protocol and Session Description Protocol briefly,and discusses on the mechanism of register and authentication——the key problem of SIP based user’s mobility.A solving scheme is proposed for local and wandering users’ register and authentication. At the same time we analyses its existing security problems and give a feasible solving method.更多还原