MUSE: Multimodal searchable encryption for cloud applications

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2 Citations (Scopus)

Abstract

In this paper we tackle the practical challenges of searching encrypted multimodal data (i.e., data containing multiple media formats simultaneously), stored in public cloud servers, with reduced information leakage. To this end we propose MuSE, a Multimodal Searchable Encryption scheme that, by combining only standard cryptographic primitives and symmetric-key block ciphers, allows cloud-backed applications to dynamically store, update, and search multimodal datasets with privacy and efficiency guarantees. As searching encrypted data requires a tradeoff between privacy and efficiency, we also propose a variant of MuSE that resorts to partially homomorphic encryption to further reduce information leakage, but at the cost of additional computational overhead. Both schemes are formally proven secure and experimentally evaluated regarding performance and search precision. Experiments with realistic datasets show that our contributions achieve interesting levels of efficiency and privacy, making MuSE particularly suitable for practical application scenarios.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE 37th Symposium on Reliable Distributed Systems, SRDS 2018
PublisherIEEE Computer Society
Pages181-190
Number of pages10
ISBN (Electronic)9781538683019
DOIs
Publication statusPublished - 15 Jan 2019
Event37th Symposium on Reliable Distributed Systems, SRDS 2018 - Salvador, Brazil
Duration: 2 Oct 20185 Oct 2018

Publication series

NameSymposium on Reliable Distributed Systems Proceedings
PublisherIEEE Computer Society
Volume2019-October
ISSN (Print)1060-9857

Conference

Conference37th Symposium on Reliable Distributed Systems, SRDS 2018
CountryBrazil
CitySalvador
Period2/10/185/10/18

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