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International Conference on Algorithms and Architectures for Parallel Processing

ICA3PP 2018: Algorithms and Architectures for Parallel Processing pp 385–401Cite as

DStore: A Distributed Cloud Storage System Based on Smart Contracts and Blockchain

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Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 11336))

Abstract

In this article, we propose a client-side encrypted distributed cloud storage system named DStore, which is constructed in a peer-to-peer networking environment. DStore allows data owners to rent the local idle disks of other peers to store personal data in a distributed manner without relying on centralized control by trusted third parties. For DStore, we propose a challenge-verification solution based on the Merkle hash tree to periodically audit the integrity of outsourced data. DStore employs smart contracts to generate records and achieve consensus regarding lease relationships. Upon completion of an audit, the smart contract verifies the audit result and automatically performs the payment operation. Finally, we conduct a comprehensive evaluation to ensure that DStore is secure and feasible.

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Notes

  1. 1.

    Actually, many lessors are involved in DStore, but this article focuses on the data storage process for a data owner and one lessor.

  2. 2.

    To improve readability, we refer to a storage contract as a smart contract. In practice, to reduce the cost of paying smart contracts, multiple storage contracts among a data owner and multiple lessors are written as one smart contract.

  3. 3.

    The specific code of \(SC_i\) can be found here.

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Acknowledgments

This work is supported by the National Key R&D Program of China under Grant 2017YFB0802000 and the National Natural Science Foundation of China under Grant 61370203.

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Authors and Affiliations

  1. Center for Cyber Security, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China

    Jingting Xue, Chunxiang Xu, Yuan Zhang & Lanhua Bai

  2. Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, N2L 3G1, Canada

    Yuan Zhang

Authors
  1. Jingting Xue
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  2. Chunxiang Xu
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  3. Yuan Zhang
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  4. Lanhua Bai
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Corresponding authors

Correspondence to Jingting Xue or Chunxiang Xu .

Editor information

Editors and Affiliations

  1. Rutgers University–Newark, Newark, NJ, USA

    Jaideep Vaidya

  2. Guangzhou University, Guangzhou, China

    Jin Li

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Xue, J., Xu, C., Zhang, Y., Bai, L. (2018). DStore: A Distributed Cloud Storage System Based on Smart Contracts and Blockchain. In: Vaidya, J., Li, J. (eds) Algorithms and Architectures for Parallel Processing. ICA3PP 2018. Lecture Notes in Computer Science(), vol 11336. Springer, Cham. https://doi.org/10.1007/978-3-030-05057-3_30

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  • DOI: https://doi.org/10.1007/978-3-030-05057-3_30

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-05056-6

  • Online ISBN: 978-3-030-05057-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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