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Secure Deduplication Scheme for Cloud Encrypted Data

机译:云加密数据的安全重复数据删除方案

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摘要

Cloud storage (CS) is gaining much popularity nowadays because it offers low-cost and convenient network storage services. In this big data era, the explosive growth in digital data moves the users towards CS but this causes a lot of storage pressure on CS systems because a large volume of this data is redundant. Data deduplication is an effective data reduction technique. The dynamic nature of data makes security and ownership of data as a very important issue. Proof-of-ownership schemes are a robust way to check the ownership claimed by any owner. However, this method affects the deduplication process because encryption methods have varying characteristics. A convergent encryption (CE) scheme is widely used for secure data deduplication. The problem with the CE-based scheme is that the user can decrypt the cloud data while he has lost his ownership. This article addresses the problem of ownership revocation by proposing a secure deduplication scheme for encrypted data. The proposed scheme enhances the security against unauthorized encryption and poison attack on the predicted set of data.
机译:如今,由于云存储(CS)提供低成本和便捷的网络存储服务,因此备受青睐。在这个大数据时代,数字数据的爆炸性增长将用户推向CS,但这会给CS系统带来很大的存储压力,因为大量的这些数据是冗余的。重复数据删除是一种有效的数据缩减技术。数据的动态性质使数据的安全性和所有权成为非常重要的问题。所有权证明计划是检查任何所有者主张的所有权的可靠方法。但是,此方法会影响重复数据删除过程,因为加密方法具有不同的特性。收敛加密(CE)方案被广泛用于安全的重复数据删除。基于CE的方案的问题在于,用户可以在失去所有权的同时解密云数据。本文通过为加密数据提出一种安全的重复数据删除方案来解决所有权撤销的问题。所提出的方案增强了针对未经预测的加密和对预测数据集的毒药攻击的安全性。

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