【摘要】 会话初始协议(SIP)在设计之初没有考虑太多安全问题,其安全隐患十分严重。针对上述问题,介绍SIP协议的安全特性,针对其可能受到的安全威胁,讨论SIP协议的安全机制问题。在"信任域"的基础上提出一个完善的SIP安全认证机制,描述方案的具体应用场景,并指出SIP认证机制的进一步研究方向。更多还原

【Abstract】 Due to the lack of consideration in Session Initial Protocol(SIP) security,a lot of threats to SIP are emerging and attracting enormous attention.Authentication is one important aspect of SIP security issues.The present authentication-related mechanisms are analyzed.Based on the concept of "trust domain",a more advanced and effective authentication mechanism scheme is proposed and its implementation process is given.Further research objective in SIP authentication is discussed.更多还原