User adaptive systems in the context of pervasive computing can only unveil their power if based on a generic middleware managing private data and context information in combinati...
Abstract. Context-aware systems represent extremely complex and heterogeneous distributed systems, composed of sensors, actuators, application components, and a variety of context ...
In this paper, we examine how conclusions about linkability threats can be drawn by analyzing message contents and subject knowledge in arbitrary communication systems. At first, ...
Abstract In this article, we present a comprehensive approach for privacy preserving access control based on the notion of purpose. In our model, purpose information associated wit...
Abstract. At present, network users have to manage one set of authentication credentials (usually a username/password pair) for every service with which they are registered. Single...