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Home » Towards Continuous and Passive Authentication via Touch Biometrics: An Experimental Study on Smartphones
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Towards Continuous and Passive Authentication via Touch Biometrics: An Experimental Study on Smartphones

Authors: 

Hui Xu, The Chinese University of Hong Kong; Yangfan Zhou, The Chinese University of Hong Kong and MoE Key Laboratory of High Confidence Software Technologies; Michael R. Lyu, The Chinese University of Hong Kong

Abstract: 

Current smartphones generally cannot continuously authenticate users during runtime. This poses severe security and privacy threats: A malicious user can manipulate the phone if bypassing the screen lock. To solve this problem, our work adopts a continuous and passive authentication mechanism based on a user’s touch operations on the touchscreen. Such a mechanism is suitable for smartphones, as it requires no extra hardware or intrusive user interface. We study how to model multiple types of touch data and perform continuous authentication accordingly. As a first attempt, we also investigate the fundamentals of touch operations as biometrics by justifying their distinctiveness and permanence. A onemonth experiment is conducted involving over 30 users. Our experiment results verify that touch biometrics can serve as a promising method for continuous and passive authentication.

Hui Xu, The Chinese University of Hong Kong

Yangfan Zhou, The Chinese University of Hong Kong and MoE Key Laboratory of High Confidence Software Technologies

Michael R. Lyu, The Chinese University of Hong Kong

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BibTeX
@inproceedings {185306,
author = {Hui Xu and Yangfan Zhou and Michael R. Lyu},
title = {Towards Continuous and Passive Authentication via Touch Biometrics: An Experimental Study on Smartphones},
booktitle = {10th Symposium On Usable Privacy and Security ({SOUPS} 2014)},
year = {2014},
isbn = {978-1-931971-13-3},
address = {Menlo Park, CA},
pages = {187--198},
url = {https://www.usenix.org/conference/soups2014/proceedings/presentation/xu},
publisher = {{USENIX} Association},
month = jul,
}
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