Many people desire ubiquitous access to their personal computing environments. We present a system in which a user leverages a personal mobile device to establish trust in a publi...
Gummi is an interaction technique and device concept based on physical deformation of a handheld device. The device consists of several layers of flexible electronic components, i...
We show how to convert regular keyboard-entry CAPTCHAs into clickable CAPTCHAs. The goal of this conversion is to simplify and speed-up the entry of the CAPTCHA solution, to minim...
Richard Chow, Philippe Golle, Markus Jakobsson, Lu...
Intelligent security protocols can verify whether the involved principals have properties that are defined based on certain functional and security policies. The property we focu...
The design of existing mobile phone technology has emphasised the primacy of person-to-person communication for voice, SMS and image-based communication. It may be contrasted with...
Kenton O'Hara, Richard H. R. Harper, Axel Unger, J...