A data security protection and sharing method based on block chain, a system and an application thereof

Abstract

The invention belongs to the technical field of digital information transmission, and discloses a data security protection and sharing method based on block chain, a system and an application thereof.Each participant sends identity authentication information and a key. The summary information and hash value of the original data are packaged and uploaded to the block chain system. The packaging node packages all the summary information and hash values received in the time period into blocks according to a certain order and sends them to the consensus node. According to the RPBFT protocol, thewhole network broadcasts the consensus result after reaching the consensus efficiently; the block is recorded into the account book according to the consensus result; different access control protocols are associated with blocks. The user can access the account book after the authorization of the access control protocol, and obtain the data summary recorded in the account book and the original information storage location by using the quick retrieval function. The user accesses the original information storage database to obtain the original data. The invention can resist the tampering of themalicious node, realize the consensus efficiently, and remarkably improve the data retrieval efficiency.

Description

technical field [0001] The invention belongs to the technical field of digital information transmission, and in particular relates to a block chain-based data security protection and sharing method, system and application. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: With the development of information and network technology and the advent of the era of big data, all kinds of data are showing explosive growth. People's mining and application of massive data provide important support for the quantitative progress of the national economy, life, military and other fields. For example, through big data mining and analysis, it is possible to detect business trends, determine the quality of research, prevent the spread of diseases, fight crime, or measure real-time traffic conditions. However, while enjoying the convenience brought by data resources, individuals and institutions are also bearing the risk of pri...

AI Technical Summary

Problems solved by technology

[0003] In summary, the problems in the prior art are: Internet system data is very vulnerable to attacks and leaks. At present, there is no suitable data sharing method to solve the problem of data security protection and cross-agency sharing, and realize data security protection and sharing.

The above problems make it difficult for existing security sharing methods

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