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Many different technologies fostering and supporting distributed and decentralized computing scenarios emerged recently. Edge computing provides the necessary on-demand computing power for Internet-of-Things (IoT) devices where it is needed. Computing power is moved closer to the consumer, with the effect of reducing latency and increasing fail-safety due to absent centralized structures. This is...
Cloud key services are prominent targets for attacks. In fact, every service guarding sensitive data uses a policy system to do so. As of today, such policies are mostly static. However, as system environments change and attacks grow more sophisticated, such static policies cannot always sufficiently cope with attacks and may even unnecessarily hinder the legitimate user. We believe that more fine-grained...
Today's state-of-the-art workflow -- when encrypting data for one or more recipients -- requires for the sender to select the respective encryption keys. Naturally, it is crucial for data security to pick the correct keys with sufficient security levels. Yet, for selecting a key, the sender has to trust a recipient-chosen third party and therefore bears the hardly controllable risk of choosing a bad...
The European research project we SPOT aims at supporting science learning in secondary and higher education. The underlying pedagogical approach, inquiry-based learning, is often criticized for the lack in teaching learning content and for overburden novice learners. To fill this gap, we developed the Formal Concept Analysis (FCA) tool which is used by teachers to define a knowledge domain, i.e. The...
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