Abstract
Cloud storage services are widely deployed and employed in recent years. A number of data checking techniques have been proposed for secure cloud storage services. These state-of-the-art schemes only focus on some aspects, such as data integrity, users' ownership, and data resiliency, but the overall safety of cloud storage services is not discussed sufficiently. Considering cloud storage requirements as a whole, in this paper, we propose a model of message-locked proof of ownership and retrievability with remote repairing, which provides data confidentiality, secure cross-user deduplication at the client-side, file retrievability, ownership privacy-preserving, random block accessing, and remote repairing simultaneously. In addition, we also propose a concrete construction and prove its security in the random oracle model. The experimental results show that our construction is efficient in practice. Copyright © 2016 John Wiley & Sons, Ltd.
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