A Rapid Serial Visual Presentation Method for Graphical Authentication
We propose a Rapid Serial Visual Presentation (RSVP) graphical authentication method that is suited for multi-touch mobile devices. This method presents degraded pictures of everyday objects in a temporal stream. Considering all the other authentication methods employ a spatial visual search, our method is unique (i.e., searching across time versus space). A temporal method of presentation is used to decreases login times down to 14 s and to allow login with a simple touch of the screen. By degrading the images, over-the-shoulder attackers are prevented from easily capturing the passcode. This study shows that all participants could successfully login at least once when allowed up to three attempts. After becoming familiar with the RSVP authentication method, participants took on the role of an attacker. Notably, no one was able to identify the passcode. The RSVP method offers a memorable, usable, quick, and secure alternative for authentication on multi-touch mobile devices.