University of Pitesti
Cloud computing environments do not allow use of a single access control mechanism, single policy language or single policy management tool for various cloud services. Currently, users must use diverse access control solutions available for each cloud service provider to secure their data. In this paper, the authors introduce a semantic-based policy management framework that is designed to give users a unified control point for managing policies that control access to their data no matter where the data is stored. They present the framework and describe its components. Furthermore, they present a proof of concept implementation and results of performance evaluation.