: Digital piracy is threatening the global multimedia content industry and blindly applied coercive Digital Right Management (DRM) policies do nothing but legitimizing this piracy....
Recent studies and publications have shown a demand for a secure method to proof someones or somenthings position via a communication channel. In this paper we present a concept a...
The usage control (UCON) model was introduced as a unified approach to capture a number of extensions for traditional access control models. While the policy specification flexibi...
Xinwen Zhang, Ravi S. Sandhu, Francesco Parisi-Pre...