Data sharing system and method based on blockchain, computing device and storage medium

Abstract

The invention discloses a data sharing system and method based on a blockchain, a computing device and a storage medium, and the method comprises the steps: calling a data access authorization intelligent contract to judge the access authority of a data user when a data information group of the blockchain receives a data access request; when the access permission requirement is met, returning a data URL address of the data file to the data user; enabling the data management group to call an authorization record evidence storage contract to carry out evidence storage recording on the data access situation of the data user; enabling a cloud storage to return a corresponding data file when receiving a data URL address submitted by a data user; and enabling the data management group to call the blockchain data access evidence storage contract to perform evidence storage recording on the data access record. Through the technical scheme of the invention, the whole data sharing process is recorded and stored, and sufficient and fine authorization management is carried out on data access, so that data abuse is avoided, and sensitive information leakage is avoided.

Description

technical field [0001] The present invention relates to the technical field of data sharing, in particular to a blockchain-based data sharing system, a blockchain-based data sharing method, a computing device, and a storage medium. Background technique [0002] Telecom operators or Internet companies have accumulated a large amount of data, and are constantly improving the quantity, quality, and freshness of the data they own, and collect it from multiple dimensions such as the user side and the partner side by providing content, developing services, and many other means Data: Driven by IT-oriented transformation and Internet-based strategies, traditional enterprises have gradually accumulated a large amount of data assets. These data are of great value to the company's product planning, user maintenance, business decision-making, and external cooperation. At present, these data collection and sharing behaviors are carried out spontaneously by enterprises or consortiums of ...

AI Technical Summary

Problems solved by technology

[0006] Difficult to control: When data sharing, the data owner cannot set the validity period of sharing, share objects, limit the number of copies; nor can it withdraw or clear the data from the data user under special circumstances or when the sharing contract ends;

[0007] Difficult to evaluate: There is no fair data sharing reputation system: Data users have no evaluation and feedback system for the quality of shared data. If data owners modify or falsify the original data, or falsify the query results, they cannot give feedback or complaint

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