Practical and privacy-assured data indexes for outsourced cloud data

Hongli Zhang, Zhigang Zhou, Xiaojiang Du, Panpan Li, Xiangzhan Yu

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

2 Scopus citations

Abstract

Cloud computing allows individuals and organizations outsource their data to cloud server due to the flexibility and cost savings. However, data privacy is a major concern that hampers the wide adoption of cloud services. Data encryption ensures data content confidentiality and fine-grained data access control prevents unauthorized user from accessing data. An unauthorized user may still be able to infer privacy information from encrypted data by using indexing techniques. In this paper, we investigate the problem of sensitive information leakage caused by orthogonal use of these two kinds of techniques. Based on that, we propose 'core attribute'-aware techniques that can ensure privacy of outsourced data. The techniques focus on confidential attribute set of outsourced data. We adopt k-anonymity technique for the attribute indexes to prevent user from inferring privacy from unauthorized data. We formally prove the privacy-preserving guarantee of the proposed mechanism. Our extensive experiments demonstrate the practicality of the proposed mechanism, which has low computation and communication overhead.

Original languageEnglish
Title of host publication2013 IEEE Global Communications Conference, GLOBECOM 2013
Pages671-676
Number of pages6
DOIs
StatePublished - 2013
Event2013 IEEE Global Communications Conference, GLOBECOM 2013 - Atlanta, GA, United States
Duration: 9 Dec 201313 Dec 2013

Publication series

NameProceedings - IEEE Global Communications Conference, GLOBECOM
ISSN (Print)2334-0983
ISSN (Electronic)2576-6813

Conference

Conference2013 IEEE Global Communications Conference, GLOBECOM 2013
Country/TerritoryUnited States
CityAtlanta, GA
Period9/12/1313/12/13

Keywords

  • cloud computing
  • data indexes
  • data outsourcing
  • k-anonymity
  • privacy-assured

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