Block chain-based data controllable sharing method

Abstract

The invention belongs to the technical field of block chain data sharing, and particularly relates to a block chain-based data controllable sharing method, which comprises the following steps that: a data provider provides shared data, a data demander initiates a data reading application, and the block chain verifies the signature of the demander, judges the level and matches a sharer set, if the signature of the demander passes, the data demander is directly allowed to read the data, and if not, the application is rejected. The authority verification of the whole sharing process of application, authorization and reading of the data assets is realized, and the data sharing can be realized in a safe, credible and decentralized mode without the need for the demand side and the provider to depend on a data exchange platform. According to the method, through strict grade comparison and auditing, controllable sharing of the data is realized.

Description

technical field [0001] The invention belongs to the technical field of block chain data sharing, and in particular relates to a controllable data sharing method based on block chain. Background technique [0002] Blockchain is a term in the field of information technology. In essence, it is a shared database in which the data or information stored has the characteristics of "unforgeable", "full trace", "traceable", "open and transparent", "collective Maintenance" and other features. Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects. [0003] The degree of data sharing reflects the level of information development in a region or a country. The higher the degree of data sharing, the higher the level of information development. To achieve data sharing, a set of unified and statutory data exchange standards should be established first to standardize data form...

AI Technical Summary

Problems solved by technology

[0004] However, the security control of data sharing, that is, the implementation of PKI technology and security technology-based authentication, control, and recording of data access, transfer, and use. The data sharing platform is also delivering security responsibilities while realizing data transfer. However, now In some data sharing methods, there is no difference in data, one-way responsibility transfer, and simple auditing will inevitably lead to "simultaneity" of security responsibilities, which is not conducive to data leakage traceability, but also dampens the enthusiasm of sharers

[0005] Therefore, data access authorization, sharing and exchange, and log auditing are all completed on the information sharing platform, which requires resource providers and demanders to fully trust the platform, and the platform naturally assumes the main responsibility for management and control, which is often the case in practical applications. There will be a platform that cannot control the access personnel, which will lead to uncontrollable data when sharing data

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