Exploring the Use of Discrete Gestures for Authentication

Authors:
Ming Ki Chong;Gary Marsden
Affiliations:
Department of Computer Science, University of Cape Town, Cape Town, South Africa;Department of Computer Science, University of Cape Town, Cape Town, South Africa
Venue:
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part II
Year:
2009

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Abstract

Research in user authentication has been a growing field in HCI. Previous studies have shown that peoples' graphical memory can be used to increase password memorability. On the other hand, with the increasing number of devices with built-in motion sensors, kinesthetic memory (or muscle memory) can also be exploited for authentication. This paper presents a novel knowledge-based authentication scheme, called gesture password, which uses discrete gestures as password elements. The research presents a study of multiple password retention using PINs and gesture passwords. The study reports that although participants could use kinesthetic memory to remember gesture passwords, retention of PINs is far superior to retention of gesture passwords.