Model for Data Access Control and Sharing Based on Blockchain
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National Key R&D Program of China (2017YFB1400700); National Natural Science Foundation of China (U1509214)

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    Abstract:

    Data has become an important asset for an enterprise. How to effectively control access to data within an enterprise and securely share data between enterprises have been a challenge. Distributed ledger in blockchain can solve these problems in some ways. However, the asymmetric encryption mechanism applied by blockchain can only be transmitted peer to peer securely; it does not meet the complex access control requirements within the enterprise. This paper presents a model for data access control and sharing using block chain, and uses attribute based encryption to control and share enterprise data, so as to achieve the purpose of fine-grained access control and secure sharing. Through comparative analysis, the model can solve difficulties ofaccess control withinthe enterprise and sharing data between enterprises in security and performance.

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王秀利,江晓舟,李洋.应用区块链的数据访问控制与共享模型.软件学报,2019,30(6):1661-1669

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  • Received:June 26,2018
  • Revised:October 12,2018
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  • Online: March 28,2019
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