Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12188/15572
Title: Authorization Proxy for SPARQL Endpoints
Authors: Stojanov, Riste 
Jovanovik, Milos 
Keywords: Data Security
SPARQL
RDF
Issue Date: Sep-2017
Publisher: Springer International Publishing
Conference: ICT Innovations 2017: Data-Driven Innovation
Abstract: A 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.
URI: http://hdl.handle.net/20.500.12188/15572
DOI: 10.1007/978-3-319-67597-8_20
Appears in Collections:Faculty of Computer Science and Engineering: Conference papers

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