Authorization management method and system and equipment and computer readable storage medium

Abstract

The invention relates to the technical field of block chains, and discloses an authorization management method and system, equipment and a computer readable storage medium. The authorization management method comprises the steps that a first node signs a second public key through a first private key to obtain a first signature code, then the first signature code is subjected to signature verification through the first public key, and when the signature verification is passed, the second public key is added to an authorization list; and the second node signs the second encrypted data through asecond private key to obtain a second signature code, then the second signature code is verified based on the authorization list, and when the second signature code passes the signature verification,the second encrypted data is released to the block chain. Through the method and the device, the owner of the data grants the authority of modifying the data to the authorized party on the basis thatthe owner of the data does not provide the private key to the authorized party, so that the owner of the data always keeps the absolute control authority of the data, and the data security is improved.

Description

technical field [0001] The present invention relates to the field of blockchain technology, and in particular, to an authorization management method, system, device and computer-readable storage medium. Background technique [0002] The problem to be solved by the blockchain network is, first of all, information sharing between industries, and each large company regards data as life and is unwilling to share data. For this reason, all sensitive data uploaded to the blockchain must be encrypted. Only in this way can big companies' concerns about data sharing be resolved, and it will not turn data sharing into data welfare. [0003] In the business, information sharing between all business related parties is realized by means of key authorization. For example, when Alice uploads data to the chain, a unique public and private key pair will be generated for this piece of data, and Alice will pass the private key to the chain. Authorize Bob, so that Bob can provide the correct s...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide an authorization management method, system, device, and computer-readable storage medium, aiming at solving the problem that in the prior art, if the data owner Alice needs to grant Bob the authority to modify the data, the private key of the data must be Granted to Bob, resulting in technical issues where Alice cannot withdraw permissions from Bob

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