Information authorization method and device based on block chain, medium and electronic equipment

Abstract

The invention relates to an information authorization method and device based on a blockchain, a medium and electronic equipment, and belongs to the technical field of blockchain application, and themethod comprises the steps: receiving an information acquisition request of an information demand terminal located on a blockchain node; Verifying the signature of the information demander according to an information demander public key queried by an information demander identifier in the information acquisition request to obtain a verification result; When the verification result is passed, judging the risk category of obtaining the information of the type by the information demander; And when the transaction risk category is risk-free, enabling the information providing terminal to encrypt the information of the information demand type, the information acquisition contract and the transaction record information at the time by using the public key of the information demander, and broadcast the encrypted information to the information demand terminal to complete authorization after setting the checking validity period. According to the invention, on the basis of realizing the securityauthorization of the information security level by using the block chain, the security authorization of the legal level based on the block chain authorization information is effectively ensured by evaluating the transaction risk in advance.

Description

technical field [0001] The present disclosure relates to the technical field of blockchain application, and in particular, relates to a blockchain-based information authorization method, device, medium, and electronic equipment. Background technique [0002] Information authorization means that the information owner authorizes all kinds of information owned by the information owner to other users who need relevant information according to a certain mutual agreement. [0003] When information authorization is based on the blockchain, the information is authorized and shared among the devices on the nodes on the blockchain in the form of encryption. Only the authorized party can decrypt it with its own unique private key to distinguish Block chain technology is used to provide the authorization of relevant information. The authorized information is all cipher text on the chain. When information is authorized, the security of information authorization can be effectively guarant...

AI Technical Summary

Problems solved by technology

However, when all kinds of private and confidential information are authorized, not only the security of the information must be ensured, but also the security and reliability at the level of laws and regulations must be ensured when the information is authorized. Due to reasons such as the opacity of the author, there are potential risks in information transactions. At present, there is no method for legal security assessment and authorization when blockchain information is authorized, which brings potential authorization risks.

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