Research talks are informal sessions held for faculty and students. These talks are not webcast, nor recorded, due to informal nature and topic relevance.
CERT and SEI Training schedules, as well as other related events can also be found on this list.
Seminar: SenSec: Mobile Application Security through Passive Sensing
| Date: | March 4, 2013 |
| Talk Title: | SenSec: Mobile Application Security through Passive Sensing |
| Speaker: | Joy Ying Zhang |
| Time & Location: | 12:00pm - 1:00pm CIC Building, Pittsburgh |
Abstract
We introduce a new mobile system framework, SenSec, which uses passive sensory data to ensure the security of applications and data on mobile devices. SenSec constantly collects sensory data from accelerometers, gyroscopes and magnetometers and constructs the gesture model of how a user uses the device. SenSec calculates the sureness that the mobile device is being used by its owner. Based on the sureness score, mobile devices can dynamically request the user to provide active authentication (such as a strong password), or disable certain features of the mobile devices to protect user’s privacy and information security. In this paper, we model such gesture patterns through a continuous n-gram language model using a set of features constructed from these sensors. We built mobile application prototype based on this model and use it to perform both user classification and user authentication experiments. User studies show that SenSec can achieve 75% accuracy in identifying the users and 71.3% accuracy in detecting the non-owners with only 13.1% false alarms.Speaker Bio
Joy Ying Zhang is a research assistant professor at Carnegie Mellon Silicon Valley with a courtesy appointment from the Department of Electrical and Computer Engineering. His research interest is to develop intelligent systems to improve interpersonal communications. His research lies at the intersection of statistical natural language processing, machine translation, mobile computing, context-aware and organice computing and virtual world applications. Prof. Zhang is affiliated with the CyLab Mobility Research Center, International Center for Advanced Communication Technologies (interACT), Intelligent Systems Laboratory.