A tunable proof of ownership scheme for deduplication using Bloom filters

Jorge Blasco, Roberto Di Pietro, Agustin Orfila, Alessandro Sorniotti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

61 Scopus citations


Deduplication is a widely used technique in storage services, since it affords a very efficient usage of resources-being especially effective for consumer-grade storage services (e.g. Dropbox). Deduplication has been shown to suffer from several security weaknesses, the most severe ones enabling a malicious user to obtain possession of a file it is not entitled to. Standard solutions to this problem require users to prove possession of data prior to its upload. Unfortunately, the schemes proposed in the literature are very taxing on either the server or the client side. In this paper, we introduce a novel solution based on Bloom filters that provides a flexible, scalable, and provably secure solution to the weaknesses of deduplication, and that overcomes the deficiencies of existing approaches. We provide a formal description of the scheme, a thorough security analysis, and compare our solution against multiple existing ones, both analytically and by means of extensive benchmarking. Our results confirm the quality and viability of our approach.
Original languageEnglish (US)
Title of host publication2014 IEEE Conference on Communications and Network Security, CNS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages9
ISBN (Print)9781479958900
StatePublished - Dec 23 2014
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-20


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