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dc.date.accessioned2018-02-28T07:45:18Z
dc.date.available2018-02-28T07:45:18Z
dc.date.created2018-02-26T13:48:16Z
dc.date.issued2018
dc.identifier.urihttp://hdl.handle.net/10852/60435
dc.description.abstractThanks to the popularity of mobile devices a large number of location-based services (LBS) have emerged. While a large number of privacy-preserving solutions for LBS have been proposed, most of these solutions do not consider the fact that LBS are typically cloud-based nowadays. Outsourcing data and computation to the cloud raises a number of significant challenges related to data confidentiality, user identity and query privacy, fine-grain access control, and query expressiveness. In this work, to the best of our knowledge, we propose the first privacy-preserving outsourced LBS system supporting continuous access control, multi-location queries, and per-query privacy limit. The proposed framework also supports search by location attributes in addition to locations themselves. We provide a security analysis to show that the proposed scheme preserves privacy in the presence of different threats. We also show the viability of our proposed solution and scalability with the number of locations through an experimental evaluation, using a real-life OpenStreetMap dataset.en_US
dc.languageEN
dc.language.isoenen_US
dc.publisherDepartment of Informatics, University of Oslo
dc.relation.ispartofResearch report http://urn.nb.no/URN:NBN:no-35645
dc.relation.urihttp://urn.nb.no/URN:NBN:no-35645
dc.titleA privacy-preserving framework for outsourcing location-based services to the clouden_US
dc.typeResearch reporten_US
dc.creator.authorZhu, Xiaojie
dc.creator.authorAyday, Erman
dc.creator.authorVitenberg, Roman
cristin.unitcode185,15,5,71
cristin.unitnameForskningsgruppen for nettverk og distribuerte systemer
cristin.ispublishedtrue
cristin.fulltextpreprint
dc.identifier.cristin1568714
dc.identifier.pagecount17
dc.identifier.urnURN:NBN:no-63084
dc.type.documentForskningsrapporten_US
dc.source.isbn978-82-7368-443-1
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/60435/1/A%2Bprivacy-preserving%2Bframework%2Bfor%2Boutsourcing%2Blocation-based%2Bservices%2Bto%2Bthe%2Bcloud-X.Zhu.pdf


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