Secure and efficient deduplication over encrypted data with dynamic updates in cloud storage

Dongyoung Koo, Junbeom Hur, Hyunsoo Yoon

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

6 Citations (Scopus)

Abstract

Cloud service providers adopt a deduplication technique to minimize resource utility costs. However, it is one of the most challenging issues to manage the outsourced data in a storage-efficient way when users encrypt data for preserving privacy and frequently update it. When the data is updated, file-level deduplication makes entire copy of updated file although there are small modifications. Block-level deduplication solves this problem, but it requires metadata larger than the outsourced blocks. To address this problem, we propose a hybrid deduplication scheme that minimizes storage overhead. Our scheme performs filelevel deduplication along with isolation of only updated blocks with augmented metadata. The analysis results show that our scheme minimizes storage costs while guaranteeing secure update with efficient verification.

Original languageEnglish
Title of host publicationFrontier and Innovation in Future Computing and Communications
EditorsAlbert Zomaya, James J. Park, Hwa-Young Jeong, Mohammad Obaidat
PublisherSpringer Verlag
Pages229-235
Number of pages7
ISBN (Electronic)9789401787970
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes
Event2014 FTRA International Symposium on Frontier and Innovation in Future Computing and Communications, FCC 2014 - Auckland, New Zealand
Duration: 2014 Jan 132014 Jan 16

Publication series

NameLecture Notes in Electrical Engineering
Volume301
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Other

Other2014 FTRA International Symposium on Frontier and Innovation in Future Computing and Communications, FCC 2014
CountryNew Zealand
CityAuckland
Period14/1/1314/1/16

Keywords

  • Block-level deduplication
  • Cloud storage
  • Deduplication over encrypted data
  • File-level deduplication
  • Storage overhead

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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  • Cite this

    Koo, D., Hur, J., & Yoon, H. (2014). Secure and efficient deduplication over encrypted data with dynamic updates in cloud storage. In A. Zomaya, J. J. Park, H-Y. Jeong, & M. Obaidat (Eds.), Frontier and Innovation in Future Computing and Communications (pp. 229-235). (Lecture Notes in Electrical Engineering; Vol. 301). Springer Verlag. https://doi.org/10.1007/978-94-017-8798-7_28