Data protection system and method, computer equipment and storage medium

Abstract

The invention is suitable for the technical field of computers, and provides a data protection system and method, computer equipment and a storage medium. Comprising a distributed database, a distributed data storage end, an authority verification end and a data scheduling end. The distributed data storage end is used for responding to the storage operation of the alliance member ends on the service data, calculating the data packet hash corresponding to the service data, storing the service data into the service databases of at least two alliance member ends, and after the data packet is subjected to hash labeling information, uploading the data packet to the alliance chain; the data scheduling end is used for: receiving a service data acquisition request sent by the authority verification end; calling corresponding business data from a distributed database according to the label information or the hash information; and sending the service data to an authority verification end. According to the invention, the security and tampering resistance of the data are ensured on the basis of ensuring privacy, and meanwhile, big data can be supported to be calculated on the basis of not obtaining user information, so that a win-win situation of privacy protection, data security and data mining is realized.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a data protection system and method, computer equipment and storage media. Background technique [0002] There are currently three main ways to protect user privacy data based on blockchain or consortium chain. One is to hash the data on the chain, and store the data in a centralized database to limit unauthorized user access; the second is to record the data after encryption On the blockchain, the user obtains the key after authentication by the third-party system and decrypts the information on the chain; the third is that the user's authorization information is recorded on the blockchain, and the third-party system authenticates it from the blockchain. Get the user's permissions, and then allow the user to access data in the database. [0003] Among them, data hashing on the chain can check the data, but there is no guarantee that the data in the centralized dat...

AI Technical Summary

Problems solved by technology

[0003] Among them, data hashing on the chain can check the data, but there is no guarantee that the data in the centralized database will not be lost; storing the data on the chain after encryption can prevent data from being tampered with, but it will consume a lot of blockchain performance. Suitable for databases with a large amount of data; the way to record permissions on the blockchain is still to rely on traditional databases to store data, but only put the permission data of the third-party system on the chain, and the data can be tampered with at any time

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