Audit-Free Cloud Storage via Deniable Attribute-Based Encryption

Po Wen Chi*, Chin Laung Lei

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Cloud storage services have become increasingly popular. Because of the importance of privacy, many cloud storage encryption schemes have been proposed to protect data from those who do not have access. All such schemes assumed that cloud storage providers are safe and cannot be hacked; however, in practice, some authorities (i.e., coercers) may force cloud storage providers to reveal user secrets or confidential data on the cloud, thus altogether circumventing storage encryption schemes. In this paper, we present our design for a new cloud storage encryption scheme that enables cloud storage providers to create convincing fake user secrets to protect user privacy. Since coercers cannot tell if obtained secrets are true or not, the cloud storage providers ensure that user privacy is still securely protected.

Original languageEnglish
Pages (from-to)414-427
Number of pages14
JournalIEEE Transactions on Cloud Computing
Volume6
Issue number2
DOIs
Publication statusPublished - 2018 Apr 1
Externally publishedYes

Keywords

  • attribute-based encryption
  • cloud storage
  • composite order bilinear group
  • Deniable encryption

ASJC Scopus subject areas

  • Software
  • Information Systems
  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications

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