Flexible support for multiple access control policies
ACM Transactions on Database Systems (TODS)
Sesame: A Generic Architecture for Storing and Querying RDF and RDF Schema
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
Answering queries using views: A survey
The VLDB Journal — The International Journal on Very Large Data Bases
Concept-level access control for the Semantic Web
Proceedings of the 2003 ACM workshop on XML security
Extending query rewriting techniques for fine-grained access control
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Policy-based dissemination of partial web-ontologies
Proceedings of the 2005 workshop on Secure web services
Secure resource description framework: an access control model
Proceedings of the eleventh ACM symposium on Access control models and technologies
Answering tree pattern queries using views
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Privacy in the Semantic Web: What Policy Languages Have to Offer
POLICY '07 Proceedings of the Eighth IEEE International Workshop on Policies for Distributed Systems and Networks
Distributed access control: a privacy-conscious approach
Proceedings of the 12th ACM symposium on Access control models and technologies
Access Control Model Based on RDB Security Policy for OWL Ontology
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part II
Enabling advanced and context-dependent access control in RDF stores
ISWC'07/ASWC'07 Proceedings of the 6th international The semantic web and 2nd Asian conference on Asian semantic web conference
Semantic web policies – a discussion of requirements and research issues
ESWC'06 Proceedings of the 3rd European conference on The Semantic Web: research and applications
Access control for semantic data federations in industrial product-lifecycle management
Computers in Industry
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Along with describing the web resources with ontology-based metadata to make them machine-understandable, one also needs to carefully protect Semantic Web data from unauthorized access. This paper presents a query rewriting mechanism for access control so as to avoid leakage of sensitive resources in the Semantic Web. We propose to specify the security policies for access restrictions on resources as views declared based on ontologies. Illustrated examples are presented in the paper for explaining the underlying concepts. In addition, bucket-based algorithms are proposed for supporting the query rewriting.