Secure deduplication of encrypted data: Refined model and new constructions

Jian Liu*, Li Duan, Yong Li, N. Asokan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

8 Citations (Scopus)
161 Downloads (Pure)


Cloud providers tend to save storage via cross-user deduplication, while users who care about privacy tend to encrypt their files on client-side. Secure deduplication of encrypted data (SDoE) which aims to reconcile this apparent contradiction is an active research topic. In this paper, we propose a formal security model for SDoE. We also propose two single-server SDoE protocols and prove their security in our model. We evaluate their deduplication effectiveness via simulations with realistic datasets.

Original languageEnglish
Title of host publicationTopics in Cryptology – CT-RSA 2018 - The Cryptographers’ Track at the RSA Conference 2018, Proceedings
EditorsNigel P. Smart
Number of pages20
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Cryptographers Track - San Francisco, United States
Duration: 16 Apr 201820 Apr 2018

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10808 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


ConferenceInternational Conference on Cryptographers Track
Abbreviated titleCT
CountryUnited States
CitySan Francisco

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