To ensure that a trust negotiation succeeds whenever possible, authorization policy compliance checkers must be able to find all minimal sets of their owners' credentials tha...
Studies have shown that users have great difficulty specifying their security and privacy policies in a variety of application domains. While machine learning techniques have succ...
Patrick Gage Kelley, Paul Hankes Drielsma, Norman ...
In this paper, we introduce a prototype system designed to support mobile group socializing that has been appropriated for everyday use by 150 users over 18 months. The system sup...
As emphasis is placed on developing mobile, educational, and other applications that minimize cognitive load on users, it is becoming more essential to base interface design on im...
Sharon L. Oviatt, Colin Swindells, Alexander M. Ar...
HIPs, or Human Interactive Proofs, are challenges meant to be easily solved by humans, while remaining too hard to be economically solved by computers. HIPs are increasingly used ...
Kumar Chellapilla, Kevin Larson, Patrice Y. Simard...