In this paper, we introduce a concept of transparent integrity auditing and propose a concrete scheme based on the blockchain, which goes one step beyond existing public auditing schemes, since the auditing does not rely on third-party auditors while freeing users from heavy communication costs on auditing the data integrity. Then we construct a secure transparent deduplication scheme based on the blockchain that supports deduplication over encrypted data and enables users to attest the deduplication pattern on the cloud server. Such a scheme allows users to directly benefit from data deduplication and protects data content against anyone who does not own the data. Finally, we integrate the proposed transparent integrity auditing scheme and transparent deduplication scheme into one system, dubbed BLIND. We evaluate BLIND from security and efficiency, which demonstrates that BLIND achieves a strong security guarantee with high efficiency.

中文翻译：

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基于区块链的云存储透明完整性审计和加密重复数据删除


在本文中，我们引入了透明诚信审计的概念，并提出了一种基于区块链的具体方案，该方案比现有的公共审计方案更进一步，因为审计不依赖第三方审计员，同时使用户免于沉重的沟通成本关于审核数据完整性。然后我们构建了一个基于区块链的安全透明的重复数据删除方案，支持加密数据的重复数据删除，并允许用户在云服务器上证明重复数据删除模式。这种方案允许用户直接从重复数据删除中受益，并保护数据内容免受不拥有数据的任何人的侵害。最后，我们将所提出的透明完整性审计方案和透明重复数据删除方案集成到一个系统中，称为 BLIND。我们从安全性和效率来评价BLIND，这表明BLIND以高效率实现了强大的安全保障。