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Multi-touch authentication on tabletops

Lookup NU author(s): David Kim, Dr Paul Dunphy, Dr Jonathan Hook, John Nicholson, James Nicholson, Professor Patrick OlivierORCiD


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The introduction of tabletop interfaces has given rise to the need for the development of secure and usable authentication techniques that are appropriate for the co-located collaborative settings for which they have been designed. Most commonly, user authentication is based on something you know, but this is a particular problem for tabletop interfaces, as they are particularly vulnerable to shoulder surfing given their remit to foster co-located collaboration. In other words, tabletop users would typically authenticate in full view of a number of observers. In this paper, we introduce and evaluate a number of novel tabletop authentication schemes that exploit the features of multi-touch interaction in order to inhibit shoulder surfing. In our pilot work with users, and in our formal user-evaluation, one authentication scheme - Pressure-Grid - stood out, significantly enhancing shoulder surfing resistance when participants used it to enter both PINs and graphical passwords.

Publication metadata

Author(s): Kim D, Dunphy P, Briggs P, Hook J, Nicholson JW, Nicholson J, Olivier P

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: CHI 2010: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

Year of Conference: 2010

Number of Volumes: 4

Pages: 1093-1102

Publisher: ACM


DOI: 10.1145/1753326.1753489

Library holdings: Search Newcastle University Library for this item

ISBN: 9781605589299