Enabling advanced and context-dependent access control in RDF stores

Authors:
Fabian Abel;Juri Luca De Coi;Nicola Henze;Arne Wolf Koesling;Daniel Krause;Daniel Olmedilla
Affiliations:
Distributed Systems Institute, KBS, University of Hannover, Hannover, Germany;L3S Research Center and University of Hannover, Hannover, Germany;Distributed Systems Institute, KBS, University of Hannover, Hannover, Germany;L3S Research Center and University of Hannover, Hannover, Germany;Distributed Systems Institute, KBS, University of Hannover, Hannover, Germany;L3S Research Center and University of Hannover, Hannover, Germany
Venue:
ISWC'07/ASWC'07 Proceedings of the 6th international The semantic web and 2nd Asian conference on Asian semantic web conference
Year:
2007

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Abstract

Semantic Web databases allow efficient storage and access to RDF statements. Applications are able to use expressive query languages in order to retrieve relevant metadata to perform different tasks. However, access to metadata may not be public to just any application or service. Instead, powerful and flexible mechanisms for protecting sets of RDF statements are required for many Semantic Web applications. Unfortunately, current RDF stores do not provide fine-grained protection. This paper fills this gap and presents a mechanism by which complex and expressive policies can be specified in order to protect access to metadata in multi-service environments.