Free-Form Gaze Passwords from Cameras Embedded in Smart Glasses

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Date
2019-12
Major/Subject
Mcode
Degree programme
Language
en
Pages
9
136–144
Series
17th International Conference on Advances in Mobile Computing & Multimedia (MoMM2019)
Abstract
Contemporary personal mobile devices support a variety of authentication approaches, featuring different levels of security and usability. With cameras embedded in smart glasses, seamless, hands-free mobile authentication based on gaze is possible. Gaze authentication relies on knowledge as a secret, and gaze passwords are composed from a series of gaze points or gaze gestures. This paper investigates the concept of free-form mobile gaze passwords. Instead of relying on gaze gestures or points, free-form gaze gestures exploit the trajectory of the gaze over time. We collect and investigate a set of 29 different free-form gaze passwords from 19 subjects. In addition, the practical security of the approach is investigated in a study with 6 attackers observing eye movements during password input to subsequently perform spoofing. Our investigation indicates that most free-form gaze passwords can be expressed as a set of common geometrical shapes. Further, our free-form gaze authentication yields a true positive rate of 81% and a false positive rate with other gaze passwords of 12%, while targeted observation and spoofing is successful in 17.5% of all cases. Our usability study reveals that further work on the usability of gaze input is required as subjects reported that they felt uncomfortable creating and performing free-form passwords.
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Keywords
authentication, free-form, gaze password, matching, smart glasses
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Citation
Friström , E , Lius , E , Ulmanen , N , Hietala , P , Kärkkäinen , P , Mäkinen , T , Sigg , S & Findling , R 2019 , Free-Form Gaze Passwords from Cameras Embedded in Smart Glasses . in 17th International Conference on Advances in Mobile Computing & Multimedia (MoMM2019) . ACM , pp. 136–144 , International Conference on Advances in Mobile Computing and Multimedia , Munich , Germany , 02/12/2019 . https://doi.org/10.1145/3365921.3365928