Properties of protection goals and their integration into a user interface

Abstract Based on an analysis of protection goals and their properties, we discuss how to design user interfaces for multilateral security. Firstly, we discuss fundamentals such as attackers, user perspectives, monotonicity, synergies, interference, and plausible combinations of protection goals. Secondly, we apply these properties to multilateral security and illustrate the consequences for configuration and negotiation. In particular, we sketch a user interface based on the insight gained and describe the results of a usability test, which has been performed.