Click Passwords
(with Nebojsa Jojic and Paul Roberts)
keywords: image based password systems, graphical passwords, Click LogOn, click passwords
contact: darkok@microsoft.com

We present a set of algorithms and tools that enable entering passwords on devices with graphical input (touch-pad, stylus, mouse) by clicking on specific pixels of a custom image. As one of the most important features, when entering a password, the user is given limited tolerance for inaccuracy in the selection of pixels. The goal of the proposed click password system is to maximize the password space, while facilitating memorization of entered secrets. Besides enabling personalization of the login procedure through selection of the background image, the proposed system provides superior password space compared to traditional 8-character textual passwords.

Learn more about click passwords from [1]. The following issued patent covers the novel ideas. The technology has found its way into Microsoft Origami Experience 2.0 for UMPCs.