Title
Assessing Inconspicuous Smartphone Authentication for Blind People
Abstract
As people store more personal data in their smartphones, the consequences of having it stolen or lost become an increasing concern. A typical counter-measure to avoid this risk is to set up a secret code that has to be entered to unlock the device after a period of inactivity. However, for blind users, PINs and passwords are inadequate, since entry 1) consumes a non-trivial amount of time, e.g. using screen readers, 2) is susceptible to observation, where nearby people can see or hear the secret code, and 3) might collide with social norms, e.g. disrupting personal interactions. Tap-based authentication methods have been presented and allow unlocking to be performed in a short time and support naturally occurring inconspicuous behavior (e.g. concealing the device inside a jacket) by being usable with a single hand. This paper presents a study with blind users (N = 16) where an authentication method based on tap phrases is evaluated. Results showed the method to be usable and to support the desired inconspicuity.
Year
Venue
DocType
2015
arXiv: Human-Computer Interaction
Journal
Volume
Citations 
PageRank 
abs/1506.00930
1
0.35
References 
Authors
5
3
Name
Order
Citations
PageRank
Diogo Marques1366.33
Luis Carrico250666.22
Tiago Guerreiro336645.90