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Journal Article Client-Side Deduplication to Enhance Security and Reduce Communication Costs
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Authors
Keonwoo Kim, Taek-Young Youn, Nam-Su Jho, Ku-Young Chang
Issue Date
2017-02
Citation
ETRI Journal, v.39, no.1, pp.116-123
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.17.0116.0039
Project Code
16ZS1500, Develpoment of storage and search technologies over encrypted database, Ku Young Chang
Abstract
Message-locked encryption (MLE) is a widespread cryptographic primitive that enables the deduplication of encrypted data stored within the cloud. Practical clientside contributions of MLE, however, are vulnerable to a poison attack, and server-side MLE schemes require large bandwidth consumption. In this paper, we propose a new client-side secure deduplication method that prevents a poison attack, reduces the amount of traffic to be transmitted over a network, and requires fewer cryptographic operations to execute the protocol. The proposed primitive was analyzed in terms of security, communication costs, and computational requirements. We also compared our proposal with existing MLE schemes.
KSP Keywords
Bandwidth consumption, Communication cost, Computational requirements, Large bandwidth, Message-locked encryption, Secure deduplication, Server side, client-side deduplication, encrypted data
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
Type 4: