Demo: Garda - robust gesture-based authentication for mobile systems.

This is a demo for a full paper in CHI'17 proceedings http://dx.doi.org/10.1145/3025453.3025879 [6]. We designed and implemented a secure, robust and usable multi-expert recognizer, Garda, for gesture passwords. This demo demonstrates two real scenarios of using Garda as a gesture recognizer in mobile devices: under normal use and under a shoulder-surfing attack. As a supplement to the demo, we describe technical details of Garda in this report. Our demo shows the usability of our Garda gesture authentication method on mobile devices in daily life.