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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Two-Level Verification of Data Integrity for Data Storage in Cloud Computing
verfasst von : Guangwei Xu, Chunlin Chen, Hongya Wang, Zhuping Zang, Mugen Pang, Ping Jiang
Erschienen in: Advanced Research on Electronic Commerce, Web Application, and Communication
Verlag: Springer Berlin Heidelberg
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Data storage in cloud computing can save capital expenditure and relive burden of storage management for users. As the lose or corruption of files stored may happen, many researchers focus on the verification of data integrity. However, massive users often bring large numbers of verifying tasks for the auditor. Moreover, users also need to pay extra fee for these verifying tasks beyond storage fee. Therefore, we propose a two-level verification of data integrity to alleviate these problems. The key idea is to routinely verify the data integrity by users and arbitrate the challenge between the user and cloud provider by the auditor according to the MACs and
ϕ
values. The extensive performance simulations show that the proposed scheme obviously decreases auditor’s verifying tasks and the ratio of wrong arbitration.