Decentralized data access control over consortium blockchains

作者：

Highlights：

• The problem of Decentralized Data Access Control (DDAC) is fundamental for consortium blockchains.

• We developed a framework to protect data sovereignty by DDAC rule specifications.

• The framework adapts to any consortium blockchain system with a UTXO or world state data model.

• We implemented this framework on top of Hyperledger Fabric as a reference.

• Experimental results, as well as a real-world case study, showed the practicality of the cost-based strategy and the framework.

摘要

•The problem of Decentralized Data Access Control (DDAC) is fundamental for consortium blockchains.•We developed a framework to protect data sovereignty by DDAC rule specifications.•The framework adapts to any consortium blockchain system with a UTXO or world state data model.•We implemented this framework on top of Hyperledger Fabric as a reference.•Experimental results, as well as a real-world case study, showed the practicality of the cost-based strategy and the framework.

论文关键词：Blockchain,Consortium blockchain,Data security,Access control

论文评审过程：Received 24 May 2019, Revised 25 April 2020, Accepted 6 July 2020, Available online 9 July 2020, Version of Record 15 July 2020.

论文官网地址：https://doi.org/10.1016/j.is.2020.101590