Title
Extending the Touchscreen Pattern Lock Mechanism with Duplicated and Temporal Codes.
Abstract
We investigate improvements to authentication on mobile touchscreen phones and present a novel extension to the widely used touchscreen pattern lock mechanism. Our solution allows including nodes in the grid multiple times, which enhances the resilience to smudge and other forms of attack. For example, for a smudge pattern covering 7 nodes, our approach increases the amount of possible lock patterns by a factor of 15 times. Our concept was implemented and evaluated in a laboratory user test n=36. The test participants found the usability of the proposed concept to be equal to that of the baseline pattern lock mechanism but considered it more secure. Our solution is fully backwards-compatible with the current baseline pattern lock mechanism, hence enabling easy adoption whilst providing higher security at a comparable level of usability.
Year
DOI
Venue
2016
10.1155/2016/8762892
Adv. Human-Computer Interaction
Field
DocType
Volume
Psychological resilience,Authentication,Lock (computer science),Computer science,Touchscreen,Usability,Computer hardware,Grid,Embedded system
Journal
2016
ISSN
Citations 
PageRank 
1687-5893
0
0.34
References 
Authors
5
5
Name
Order
Citations
PageRank
Ashley Colley124541.59
Tobias Seitz221.39
Tuomas Lappalainen3195.25
Matthias Kranz444237.93
Jonna Häkkilä5893103.11