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Policy-Based De-duplication in Secure Cloud Storage

  • Chuanyi Liu*
  • , Xiaojian Liu
  • , Lei Wan
  • *Corresponding author for this work
  • Beijing University of Posts and Telecommunications
  • Ministry of Education of the People's Republic of China

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

Abstract

Reducing the amount of data need to be transferred, stored, and managed becomes a crucial for cloud storage. On the other hand, as user data are stored and processed by outsourced cloud provider, encryption becomes a necessary before updating data into the cloud. However, the above two goals are greatly opposed to each other. In order to solve the above conflict, a policy-based de-duplication proxy scheme is proposed in this paper. It suggests a policy-based de-duplication proxy scheme to enable different trust relations among cloud storage components, de-duplication related components and different security requirements. Further proposes a key management mechanism to access and decrypt the shared de-duplicated data chunks based on Proxy Re-encryption algorithms. This paper finally analyses the security of the scheme.

Original languageEnglish
Title of host publicationTrustworthy Computing and Services - International Conference, ISCTCS 2012, Revised Selected Papers
PublisherSpringer Verlag
Pages250-262
Number of pages13
ISBN (Print)9783642357947
DOIs
StatePublished - 2013
Externally publishedYes
EventInternational Conference on Trustworthy Computing and Services, ISCTCS 2012 - Beijing, China
Duration: 28 May 20122 Jun 2012

Publication series

NameCommunications in Computer and Information Science
Volume320
ISSN (Print)1865-0929

Conference

ConferenceInternational Conference on Trustworthy Computing and Services, ISCTCS 2012
Country/TerritoryChina
CityBeijing
Period28/05/122/06/12

Keywords

  • Cloud Storage
  • Convergent Encryption
  • Data De-duplication
  • Encryption
  • Proxy Re-encryption

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