A Secure Light-Weight Public Auditing Scheme in Cloud Computing with Potentially Malicious Third Party Auditor

Yilun WU  Xinye LIN  Xicheng LU  Jinshu SU  Peixin CHEN  

IEICE TRANSACTIONS on Information and Systems   Vol.E99-D   No.10   pp.2638-2642
Publication Date: 2016/10/01
Publicized: 2016/06/23
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2016EDL8079
Type of Manuscript: LETTER
Category: Information Network
cloud security,  public auditing,  data integrity,  storage service,  

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Public auditing is a new technique to protect the integrity of outsourced data in the remote cloud. Users delegate the ability of auditing to a third party auditor (TPA), and assume that each result from the TPA is correct. However, the TPA is not always trustworthy in reality. In this paper, we consider a scenario in which the TPA may lower the reputation of the cloud server by cheating users, and propose a novel public auditing scheme to address this security issue. The analyses and the evaluation prove that our scheme is both secure and efficient.