Enhancing web service selection by QoS-based ontology and WS-policy
Proceedings of the 2008 ACM symposium on Applied computing
Toward an On-Demand Restricted Delegation Mechanism for Grids
GRID '06 Proceedings of the 7th IEEE/ACM International Conference on Grid Computing
Using semantic web technologies for policy management on the web
AAAI'06 proceedings of the 21st national conference on Artificial intelligence - Volume 2
A role and attribute based access control system using semantic web technologies
OTM'07 Proceedings of the 2007 OTM Confederated international conference on On the move to meaningful internet systems - Volume Part II
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As the necessity of flexible Web security becomes more apparent and as the notion of using policies for access control gains popularity, the number of policy languages being proposed for controlling access to Web resources increases. Instead of defining a single standard policy language, we believe that there should be a way of embracing different policy languages and of allowing interoperability between systems that use different policy languages. We propose Rein - a policy and delegation framework that is grounded in Semantic Web technologies - to help the Web preserve maximum expressiveness for local policy communities by enabling global interoperability of policy reasoning. Rein provides ontologies for describing policy and delegation networks, and provides mechanisms for reasoning over them, both of which can be used to develop domain and policy language specific access control frameworks for Web resources. The focus of this paper is the delegation mechanisms of the Rein policy framework that support both delegation of authorization and trust. In this paper we give a brief overview of the Rein framework, describe its delegation mechanisms, and illustrate their usefulness through some examples.