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  

Publication
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
Keyword: 
cloud security,  public auditing,  data integrity,  storage service,  

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Summary: 
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.