基于区块链数据协同访问控制策略的中间件设计与研究

Design and Research of Middleware Based on Blockchain Data Collaborative Access Control Strategy

Hyperledger Fabric是目前应用广泛的联盟区块链技术。在使用Hyperledger Fabric技术进行应用系统开发的过程中,出于处理性能和处理能力上的考量,开发者通常需要将链上数据同步到第3方数据存储中,借由第3方数据存储的能力来满足实践中形式复杂的数据读取和搜索需求。本文设计的Hyperledger Fabric数据协同中间件提供了自动化的数据同步能力,并通过CheckPoint机制和本地消息表保证了数据同步过程中Hy⁃perledger Fabric和第3方数据存储间数据的一致性。

Hyperledger fabric is a widely used alliance blockchain technology.In the process of application system development using hyperledger fabric technology,for the consideration of processing performance and processing capacity,developers usually need to synchronize the data on the chain to the third-party data storage,and use the ability of the third-party data storage to meet the complex data reading and search requirements in practice.The hyperledger fabric data collaboration middleware designed in this paper provides automatic data synchronization ability,and ensures the data consistency between hyperledger fabric and the third-party data storage in the process of data synchronization through checkpoint mechanism and local message table.