Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12188/15572
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dc.contributor.authorStojanov, Risteen_US
dc.contributor.authorJovanovik, Milosen_US
dc.date.accessioned2021-12-02T11:27:52Z-
dc.date.available2021-12-02T11:27:52Z-
dc.date.issued2017-09-
dc.identifier.urihttp://hdl.handle.net/20.500.12188/15572-
dc.description.abstractA large number of emerging services expose their data using various Application Programming Interfaces (APIs). Consuming and fusing data form various providers is a challenging task, since separate client implementation is usually required for each API. The Semantic Web provides a set of standards and mechanisms for unifying data representation on the Web, as well as means of uniform access via its query language – SPARQL. However, the lack of data protection mechanisms for the SPARQL query language and its HTTP-based data access protocol might be the main reason why it is not widely accepted as a data exchange and linking mechanism. This paper presents an authorization proxy that solves this problem using query interception and rewriting. For a given client, it solely returns the permitted data for the requested query, defined via a flexible policy language that combines the RDF and SPARQL standards for policy definition.en_US
dc.language.isoenen_US
dc.publisherSpringer International Publishingen_US
dc.subjectData Securityen_US
dc.subjectSPARQLen_US
dc.subjectRDFen_US
dc.titleAuthorization Proxy for SPARQL Endpointsen_US
dc.typeBook chapteren_US
dc.typeProceeding articleen_US
dc.relation.conferenceICT Innovations 2017: Data-Driven Innovationen_US
dc.identifier.doi10.1007/978-3-319-67597-8_20-
dc.identifier.urlhttp://link.springer.com/content/pdf/10.1007/978-3-319-67597-8_20-
item.fulltextNo Fulltext-
item.grantfulltextnone-
crisitem.author.deptFaculty of Computer Science and Engineering-
crisitem.author.deptFaculty of Computer Science and Engineering-
Appears in Collections:Faculty of Computer Science and Engineering: Conference papers
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