Blockchain-based data sharing method, device and storage medium

Abstract

The invention discloses a blockchain-based data sharing method. The method comprises the steps of obtaining a login password input by a login user, post-validation, generating an identity certificateof the login user according to the identity information of the login user and the first digital signature, sending an identity certificate of the login user to the client, receiving an acquisition request message sent by a second node device in the blockchain after passing the authentication of the identity certificate, and performing signature verification on the second digital signature, and after the verification is passed, sending an acquisition response message to the second node device, the acquisition response message comprising a target file matched with the target file identifier anda blockchain address of the target file. In this way, the second node device can obtain the file evidence of the target file according to the block chain address, and the validity of the target file is verified accordingly. On one hand, identity authentication between mechanisms is realized based on the blockchain, and on the other hand, the safety and reliability of the data sharing process are ensured based on the tamper-proof performance of the blockchain, thereby ensuring the normal progress of the service.

Description

technical field [0001] The present application relates to the technical field of block chain, and in particular to a data sharing method, device and storage medium based on block chain. Background technique [0002] Nowadays, in many scenarios, there is a need for multi-agency cooperation and data trustworthiness and mutual recognition. For example, in traditional public service systems, multiple organizations need to cooperate to provide users with business processing services. These multiple organizations need mutual identity authentication. Only after the certification is passed will the sponsor handle relevant business. During the business process, the sponsor needs to issue various certification materials back and forth between multiple agencies, and submit various materials repeatedly. The bidding process is very complicated and inefficient. This is mainly Because of the inability to achieve safe and reliable data sharing among multiple institutions. [0003] At prese...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, in many scenarios, there is a need for multi-agency cooperation and data trustworthiness and mutual recognition. For example, in traditional public service systems, multiple organizations need to cooperate to provide users with business processing services. These multiple organizations need mutual identity authentication. Only after the certification is passed will the sponsor handle relevant business. During the business process, the sponsor needs to issue various certification materials back and forth between multiple agencies, and submit various materials repeatedly. The bidding process is very complicated and inefficient. This is mainly because of the inability to securely and reliably share data among multiple institutions

[0003] At present, in order to improve the efficiency and simplify the process in the traditional public service system, an identity authentication center is configured among various institutions to realize identity authentication and realize data sharing. However, the independent storage and management of data between institutions must ensure its security, and the investment in hardware and software is huge. Even so, it is difficult to prevent external or internal factors from tampering with existing data in practical applications, and data tampering will directly affect business processing

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