Description: Designing security software that is usable enough to be effective is a specialized problem, and user interface design strategies that are appropriate for other types of software will not be sufficient to solve it. In order to gain insight and better define this problem, the authors studied the usability of PGP 5.0, which is a public key encryption program mainly intended for email privacy and authentication. They chose PGP 5.0 because it has a good user interface by conventional standards, and we wanted to discover whether that was sufficient to enable non-programmers who know little about security to actually use it effectively. Author(s) : Alma Whitten and J.D. Tygar
