学术讲座
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When Seeing Is Not Believing: Defeating MFF-Based Attacks Us
2016-07-06

  

   讲座名称:When Seeing Is Not Believing: Defeating MFF-Based Attacks Using Liveness Detection for Face Authentication on Mobile Platforms
   讲座时间:2016年7月6日下午16:00
   讲座地点:北校区新科技楼609会议室
   讲座摘要:Abstract: :Face authentication is one of the most promising biometric-based user authentication mechanisms that have been widely available in this era of mobile computing. With built-in front cameras on mobile devices such as smartphones and tablets, face authentication provides an attractive alternative to the legacy passwords for its simplicity and memory-less authentication process. Nonetheless, existing face authentication systems are inherently vulnerable to the so called Media-based Facial Forgery (MFF) attacks in which adversaries use victims’ photos/videos to circumvent face authentication. As numerous personal images and videos are published in online social network (OSN), this threat becomes clear and present. We firstly quantitatively measure the threat of OSN-based facial disclosure (OSNFD). We examine real-world face-authentication systems designed for smartphones, tablets, and laptops. Our results suggest that the confidence of face authentication has been significantly compromised due to OSNFD. In order to prevent the spoofing attacks, we propose FaceLive, a practical and robust liveness detection mechanism to strengthen the face authentication on mobile devices. FaceLive detects the spoofing attacks by measuring the consistency between device movement data from the inertial sensors and the head pose changes from the facial video captured by built-in camera.
   讲座人:李岩
   简介:
   Yan LI is a researcher in information security and trust. His current research interests include usable security, mobile security, social network privacy, and data analytics. Yan LI currently work as a Senior Research Engineer in Advanced Digital Sciences Center (ADSC) which is a center located in Singapore for research led by University of Illinois at Urbana-Champaign (UIUC). He received his Ph.D. in Information Systems, Singapore Management University, Singapore in 2014. He received his Master's degree from Peking University in 2009 and Bachelor's degree from Wuhan University in 2006.

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