美国南卡罗莱纳大学计算机学院助理教授徐文渊博士受邀将来学院做一个关于无线网络安全方面的公开报告，欢迎有兴趣的师生参加！本次讲座可作为研究生读书报告！
题目：无线网络阻断攻击的检测与防御
（Detection and Defense against Jamming Attacks in Wireless Networks）
时间：2009年1月5号下午2：00~3：00
地点：曹光彪主楼413房间
报告内容摘要： Wireless networks are built upon a shared medium that makes it easy for adversaries to conduct radio interference/jamming attacks that can effectively cause a denial of service (DoS) to either transmission or reception functionality. These attacks can be easily accomplished by an adversary by either bypassing MAC-layer protocols, or emitting a radio signal targeted at a particular channel. In this talk, I'll present four different jamming attack models that can be used by an adversary to disable the operation of a wireless network, and evaluate their effectiveness in terms of how each method affects the ability of a wireless node to send and receive packets. In order to cope with the problem of jamming, I'll discuss a two-phase strategy involving the diagnosis of the attack, followed by a suitable defense strategy. In particular, I will highlight the challenges associated with detecting the presence of jamming. I will show that using only a single measurement statistic is not sufficient to reliably identify the presence of a jamming attack, and present some multimodal jamming detection methods. Then, to ensure the availability of the network in the presence of moderate jamming attacks, we propose to construct a timing channel to delivery important control information, and I will show you our validation effort through actual systems implementation on a testbed of Mica2 motes.
徐文渊博士简介：
Homepage： http://www.cse.sc.edu/~wyxu
Bio：Wenyuan Xu received her B.S. degree in electrical engineering with the highest honor from Zhejiang University in 1998, M.S. degree in computer science and engineering from Zhejiang University in 2001, and the Ph.D. degree in electrical and computer engineering from Rutgers University in 2007. She is currently an assistant professor in the Department of Computer Science and Engineering, University of South Carolina. Her research interests include wireless networking, wireless security, and sensor network privacy. In particular, she has conducted research into the effect of jamming on commodity wireless networks. Her results have led to link-layer jamming detection mechanisms, as well as powerful link-layer defense strategies to repair networks in the presence of radio interference. Dr. Xu is a co-author of the book Securing Emerging Wireless Systems: Lower-layer Approaches, Springer, 2009. She is a member of the ACM and IEEE, and N^2 Women Community, and has served on the technical programs for several IEEE/ACM conferences on wireless networking and security.
题目：无线网络阻断攻击的检测与防御
（Detection and Defense against Jamming Attacks in Wireless Networks）
时间：2009年1月5号下午2：00~3：00
地点：曹光彪主楼413房间
报告内容摘要： Wireless networks are built upon a shared medium that makes it easy for adversaries to conduct radio interference/jamming attacks that can effectively cause a denial of service (DoS) to either transmission or reception functionality. These attacks can be easily accomplished by an adversary by either bypassing MAC-layer protocols, or emitting a radio signal targeted at a particular channel. In this talk, I'll present four different jamming attack models that can be used by an adversary to disable the operation of a wireless network, and evaluate their effectiveness in terms of how each method affects the ability of a wireless node to send and receive packets. In order to cope with the problem of jamming, I'll discuss a two-phase strategy involving the diagnosis of the attack, followed by a suitable defense strategy. In particular, I will highlight the challenges associated with detecting the presence of jamming. I will show that using only a single measurement statistic is not sufficient to reliably identify the presence of a jamming attack, and present some multimodal jamming detection methods. Then, to ensure the availability of the network in the presence of moderate jamming attacks, we propose to construct a timing channel to delivery important control information, and I will show you our validation effort through actual systems implementation on a testbed of Mica2 motes.
徐文渊博士简介：
Homepage： http://www.cse.sc.edu/~wyxu
Bio：Wenyuan Xu received her B.S. degree in electrical engineering with the highest honor from Zhejiang University in 1998, M.S. degree in computer science and engineering from Zhejiang University in 2001, and the Ph.D. degree in electrical and computer engineering from Rutgers University in 2007. She is currently an assistant professor in the Department of Computer Science and Engineering, University of South Carolina. Her research interests include wireless networking, wireless security, and sensor network privacy. In particular, she has conducted research into the effect of jamming on commodity wireless networks. Her results have led to link-layer jamming detection mechanisms, as well as powerful link-layer defense strategies to repair networks in the presence of radio interference. Dr. Xu is a co-author of the book Securing Emerging Wireless Systems: Lower-layer Approaches, Springer, 2009. She is a member of the ACM and IEEE, and N^2 Women Community, and has served on the technical programs for several IEEE/ACM conferences on wireless networking and security.
