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Privacy-Preserving Public Auditing for Secure Cloud Storage (2009)
| Citations: | 75 - 3 self |
BibTeX
@MISC{Wang09privacy-preservingpublic,
author = {Cong Wang and Sherman S.-M. Chow and Qian Wang and Kui Ren and Wenjing Lou},
title = {Privacy-Preserving Public Auditing for Secure Cloud Storage},
year = {2009}
}
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Abstract
Using Cloud Storage, users can remotely store their data and enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources, without the burden of local data storage and maintenance. However, the fact that users no longer have physical possession of the outsourced data makes the data integrity protection in Cloud Computing a formidable task, especially for users with constrained computing resources. Moreover, users should be able to just use the cloud storage as if it is local, without worrying about the need to verify its integrity. Thus, enabling public auditability for cloud storage is of critical importance so that users can resort to a third party auditor (TPA) to check the integrity of outsourced data and be worry-free. To securely introduce an effective TPA, the auditing process should bring in no new vulnerabilities towards user data privacy, and introduce no additional online burden to user. In this paper, we propose a secure cloud storage system supporting privacy-preserving public auditing. We further extend our result to enable the TPA to perform audits for multiple users simultaneously and efficiently. Extensive security and performance analysis show the proposed schemes are provably secure and highly efficient.
Keyphrases
1privacy-preserving public auditing secure cloud storage public auditability cloud storage local data storage effective tpa cryptographic protocol performance analysis additional online burden privacy-preserving public auditing physical possession index term data storage multiple user extensive security secure cloud storage system new vulnerability on-demand high quality application third party auditor abstract using cloud storage data integrity protection user data privacy cloud computing formidable task outsourced data critical importance
