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首页> 外文期刊>IEEE transactions on dependable and secure computing >Blockchain-Based Private Provable Data Possession
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Blockchain-Based Private Provable Data Possession

机译：基于区块链的私人可提供数据占有

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摘要

Remote data secure storage is of crucial importance in cloud computing. In order to check remote data integrity, an important paradigm PDP (i.e., provable data possession) is proposed. All the existing PDP schemes make use of RSA or bilinear pairings. One large file has to be divided into a great many of blocks. For example, 1T (Terabit) file has to be divided into 1.0737 x 10(9) blocks (RSA where the length of the index is 1024 bits) or 6.8719 x 10(9) blocks (bilinear pairings where the order of the elliptic curve is 160 bits). The huge computation cost and communication cost incurs the inefficient PDP implementation. In other words, they are not practical. In order to solve the problem, we propose a new PDP model: blockchain-based private PDP. The new concept makes use of blockchain which is the core of cryptocurrency. For the new concept, the paper formalizes its system model and security model. Then, a concrete blockchain-based private PDP scheme is designed by making use of blockchain and RSA. The proposed blockchain-based private PDP scheme is provably secure. At the same time, we also analyze its performance from two parts: theory analysis and implementation prototype. Our analysis shows that the proposed PDP scheme is secure, efficient and practical.
机译：远程数据安全存储在云计算中至关重要。为了检查远程数据完整性，提出了一个重要的范式PDP（即，可提供数据占有）。所有现有的PDP方案都使用RSA或Bilinear配对。一个大文件必须分为许多块。例如，1T（TBRABIT）文件必须分为1.0737 x 10（9）块（RSA，其中索引的长度为1024位）或6.8719 x 10（9）块（椭圆曲线顺序的双线性配对是160位）。巨大的计算成本和通信成本突出了低效的PDP实现。换句话说，它们不实用。为了解决问题，我们提出了一个新的PDP模型：基于区块链的私有PDP。新概念利用块链，这是加密货币的核心。对于新概念，该文件正式化其系统模型和安全模型。然后，通过利用区块链和RSA来设计一个基于混凝土的基于区块的私有PDP方案。所提出的基于区块基的私有PDP方案可提供可证明的安全性。与此同时，我们还分析了两部分的性能：理论分析和实现原型。我们的分析表明，拟议的PDP方案是安全，高效实用的。

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