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Using algebraic signatures to check data possession in cloud storage

机译：使用代数签名检查云存储中的数据所有权

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摘要

Cloud storage enables users to access their data anywhere and at any time. It also can comply with a growing number of regulations. However, it brings about many new security challenges. When users store their data in cloud storage, they are mostly concerned about whether the data is intact. This is the goal of remote data possession checking (RDPC) schemes. This paper proposes an algebraic signature based RDPC scheme. Algebraic signature can improve efficiency and the running of algebraic signature can achieve tens to hundreds of megabytes per second. It allows verification without the need for the challenger to compare against the original data. The challenge/response protocol transmits a small, constant amount of data. The user needs to store only two secret keys and several random numbers. The algebraic property of algebraic signatures makes it possible to propose an efficient challenge updating method. Finally, experimental results reveal that the performance is bound by disk I/O and not by the algebraic signature and cryptographic computation, which enables it to be ideally suited for use in cloud storage.
机译：云存储使用户可以随时随地访问其数据。它还可以遵守越来越多的法规。但是，它带来了许多新的安全挑战。当用户将数据存储在云存储中时，他们最担心的是数据是否完整。这是远程数据拥有检查（RDPC）方案的目标。本文提出了一种基于代数签名的RDPC方案。代数签名可以提高效率，并且代数签名的运行可以达到每秒数十到数百兆字节。它允许验证，而挑战者无需与原始数据进行比较。质询/响应协议发送少量恒定的数据。用户只需要存储两个秘密密钥和几个随机数。代数签名的代数性质使得有可能提出一种有效的挑战更新方法。最后，实验结果表明，性能受磁盘I / O约束，而不是由代数签名和密码计算约束，这使其非常适合在云存储中使用。

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