应网络与交换技术国家重点实验室信息处理研究中心邀请，美国俄亥俄州立大学计算机系助理教授彭春翌将于12月28日（周一）来我校交流并作学术报告，欢迎有兴趣的师生踊跃参与。
讲座题目：Emerging Security Threats Against 4G LTE Cellular Network — VoLTE as A Case Study and Beyond（4G运营网络中的新安全隐患－ VoLTE的案例分析和扩展）
主讲人：彭春翌
主持人：田辉教授
时间：2015年12月28日（周一）下午02:30-04:30
地点：新科研楼723
内容摘要：
We are in the Mobile era. Cellular network has undoubtedly acted as one most critical network infrastructure for almost everyone and every mobile device on the globe. Clearly, its security is vital to both operators and users. Today’s talk is about emerging security threats in operational 4G LTE network.
In this talk, I would like to start with our recent research on VoLTE security as one case study and then investigate emerging threats, as well as their roots in the network architectural evolution. Specificially, I will first show how VoLTE is evolved and developed in 4G LTE network; Second, I will show two vulnerabilities in these seemingly reasonable design and demonstrate how they expose mobile operators and users to real attacks: free data access, overbilling, data DoS, voice DoS, to name a few. Last but not least, we explore the root causes and discuss the lessons and insights for 4G network security. Unfortunately, we uncover that while new techniques or architectural evolutions are proposed to achieve new functionalities or better experience, they also bring likely-unanticipated side-effects which expose the network under attacks.
彭春翌个人简介：
彭春翌，现美国俄亥俄州立大学计算机系助理教授。她于2013年在美国加州大学洛杉矶分校计算机系获得博士学位。
此前，她于2005年至2009年在亚洲研究院无线网络组担任助理／副研究员。她的研究兴趣主要在移动网络，系统和安全问题，主要集中于4G／3G网络和下一代移动网络，移动感知系统，无线网络和网络安全。
网络与交换技术国家重点实验室
2015年12月28日
