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Privacy-Preserving Top-k Query Processing in Distributed Systems

Sakina Mahboubi 1 Reza Akbarinia 1 Patrick Valduriez 1
1 ZENITH - Scientific Data Management
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier, CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : We consider a distributed system that stores user sensitive data across multiple nodes. In this context, we address the problem of privacy-preserving top-k query processing. We propose a novel system, called SD-TOPK, which is able to evaluate top-k queries over encrypted distributed data without needing to decrypt the data in the nodes where they are stored. We implemented and evaluated our system over synthetic and real databases. The results show excellent performance for SD-TOPK compared to baseline approaches.
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https://hal-lirmm.ccsd.cnrs.fr/lirmm-02265730
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Submitted on : Monday, August 12, 2019 - 10:18:50 AM
Last modification on : Wednesday, October 23, 2019 - 5:18:43 PM
Long-term archiving on: : Thursday, January 9, 2020 - 4:30:36 PM

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Sakina Mahboubi, Reza Akbarinia, Patrick Valduriez. Privacy-Preserving Top-k Query Processing in Distributed Systems. Transactions on Large-Scale Data- and Knowledge-Centered Systems, Springer Berlin / Heidelberg, 2019, ⟨10.1007/978-3-662-60531-8_1⟩. ⟨lirmm-02265730⟩

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