Privacy Aspects of Provenance Queries

Auge, Tanja and Scharlau, Nic and Heuer, Andreas (2020) Privacy Aspects of Provenance Queries. In: ProvenanceWeek 2020, 22 Jun 2020, USA, Charlotte. (In Press)

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Abstract

Given a query result of a big database, why-provenance can be used to calculate the necessary part of this database, consisting of so-called witnesses. If this database consists of personal data, privacy protection has to prevent the publication of these witnesses. This implies a natural conflict of interest between publishing original data (provenance) and protecting these data (privacy). In this paper, privacy goes beyond the concept of personal data protection. The paper gives an extended definition of privacy as intellectual property protection. If the provenance information is not sufficient to reconstruct a query result, additional data such as witnesses or provenance polynomials have to be published to guarantee traceability. Nevertheless, publishing this provenance information might be a problem if (significantly) more tuples than necessary can be derived from the original database. At this point, it is already possible to violate privacy policies, provided that quasi identifiers are included in this provenance information. With this poster, we point out fundamental problems and discuss first proposals for solutions.

Item Type: Conference or Workshop Item (Paper)
Subjects: Autorenart > DBIS-Publikationen
Rahmenprojekte > METIS
Rahmenprojekte > PArADISE
Forschungsthemen > Provenance Management
Depositing User: Auge
Date Deposited: 19 Jun 2020 15:06
Last Modified: 23 Jun 2020 07:36
URI: http://eprints.dbis.informatik.uni-rostock.de/id/eprint/1022

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