• 信息安全(Information security) • 上一篇 下一篇
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摘要: 从IP多媒体子系统(IMS)的安全机制入手,对IMS的注册认证流程做了详细分析,然后结合SIP协议的常见威胁,分析了在IMS中应用SIP漏洞实施攻击的可行性。以此为基础,利用注册劫持和服务器伪装的思想,提出了IMS中的一种双向监听威胁。利用Open SER实现IMS网络中CSCF的功能,搭建IMS网络仿真环境,在仿真环境中对双向监听进行仿真。仿真结果表明,双向监听威胁在IMS中是确实存在的。