Our research on smart and secure services and applications focuses on user guidance and contextual intelligence in mobile systems to keep up with continuously changing and augmenting demands of mobile communication environments. Core research targets are semantically well-founded personalization and service concepts with a universal serviceability. This includes context management, reasoning as well as service platform aspects. More specifically, the following items are part of our research agenda:

Further, we perform research on the security technologies for the envisioned services and the security of mobile terminals. The security technologies research includes usage control, where usage control is an extension of access control and deals with what may happen to data when they have been released to a data consumer. Privacy consideration, intellectual property and public security suggest that data providers want to impose a certain amount of control on the data they release. If it comes to the deployment of services and applications onto mobile terminals, issues such as whether the downloading of code may harm the terminal become apparent. Thus, for the security of mobile terminals, our research activities are on securing the deployment and execution of services and applications. Currently, we are aiming at the security of managed code (e.g., Java® and .NET™ CLR) but extend this by looking into native code as well. However, our work as well considers the integration of security into services and application. For instance, we devised a non-repudiation service for trading digital resources in Near Field Communication and ad hoc networks. This service uses a novel authentication scheme tailored to the constraints found in ad hoc networks. Furthermore we built our expertise on secure mobile business application, context-aware security service and trust evaluation of context information. Thus, research topics of interest are: