Examining Visual-Spatial Paths for Mobile Authentication.

WAY@SOUPS(2016)

引用 23|浏览27
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摘要
by peopleu0027s strong memory for visual-spatial paths (e.g., commuting paths), we present in this paper an introductory exploration of the use of these paths for memorable, strong mobile authentication. In a preliminary study, we evaluated several low- fidelity representations for encoding relatively strong (~20 bit) secrets as visual-spatial paths: a 2D birds-eye view, a 3D third- person view, and 3D immersed view. We found that the 3D immersed view worked best for memorability, and used this initial study to inspire the design for a novel mobile authentication application: the Memory Palace. We ran a within-subjects experiment to evaluate our Memory Palace authentication concept against Androidu0027s 9-dot Patternlock along two dimensions: memorability and resilience to shoulder surfing. Results from our experiment suggest people have significantly higher memorability for visual-spatial secrets encoded in the Memory Palace which were also significantly more resilient against shoulder surfing. We conclude with directions for further work: specifically, creating sharable paths for more socially compatible authentication and segmenting secret paths for simple, non-binary access control.
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