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CloudShare: Towards a Cost-Efficient and Privacy-Preserving Alliance Cloud Using Permissioned Blockchains

  • Yandong Li
  • Liehuang Zhu
  • Meng ShenEmail author
  • Feng Gao
  • Baokun Zheng
  • Xiaojiang Du
  • Sheng Liu
  • Shu Yin
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 235)

Abstract

Data explosion has raised a scalability challenge to cloud storage management, while spinning disk capacity growth rates will continue to slow down. Major data holders such as cloud storage providers with a heavy reliance on disk as a storage medium will need to orchestrate multiple kinds of storage to better manage their relentless data growth.

In this paper, we first explore the scenario that multiple clouds are driven by interests to make the storage resources efficiently allocated without requiring a trusted third party, and then propose a novel model, called CloudShare, to enable multi-clouds to carry out a transparent encrypted data deduplication among cross-users via blockchain. Our scheme significantly reduces the storage costs of each cloud, and saves the upload bandwidth of users, while ensuring data confidentiality and consistency. We demonstrate via simulations on a realistic datasets that CloudShare achieves both the effectiveness and the efficiency.

Keywords

Cloud storage Blockchain De-duplication Cost-efficient Privacy-preserving Sharing economy 

Notes

Acknowledgments

This work was supported in part by the National Science Foundation of China under Grant 61602039, in part by the Beijing Natural Science Foundation under Grant 4164098, and in part by the BIT-UMF research and development fund.

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018

Authors and Affiliations

  1. 1.Beijing Institute of TechnologyBeijingChina
  2. 2.China University of Political Science and LawBeijingChina
  3. 3.Temple UniversityPhiladelphiaUSA
  4. 4.Union Mobile Financial Technology Co., Ltd.BeijingChina

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