Provable Data Possession System for Realistic Cloud Storage Environments
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National Natural Science Foundation of China (61202082)

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    Abstract:

    The methods for supporting dynamic data updates and third-party audit are key factors that affect the practicality of existing provable data possession (PDP) schemes. This article proposes a secure and efficient PDP system called IDPA-MF-PDP for realistic cloud storage environments. The cost of auditing multiple files is dramatically reduced by a multiple-file PDP scheme based on the data update pattern of cloud storage. The requirement for users being online is reduced to the maximum extent by the implicit third-party audit framework and tamper-evident audit logs. The tripartite interaction protocol between the user, the cloud server and the implicit auditor combines MF-PDP with the implicit third-party audit framework. Theoretical analysis and experimental results show that IDPA-MF-PDP has equivalent security property with single-file PDP schemes and the audit log provides a trustworthy history record of audit results; IDPA-MF-PDP reduces the computation and communication overhead of data possession auditing from linear in the number of files to near constant.

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肖达,杨绿茵,孙斌,郑世慧.面向真实云存储环境的数据持有性证明系统.软件学报,2016,27(9):2400-2413

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History
  • Received:May 07,2014
  • Revised:December 31,2014
  • Adopted:May 15,2015
  • Online: September 01,2015
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