Smart contract credit matching method and system, computer equipment and medium

Abstract

The invention provides a smart contract credit matching method and system, equipment and a medium. The method comprises the steps that: registration requests of a borrower and lenders are audited through a smart contract, corresponding registration IDs and wallet addresses are distributed, and then the borrower initiates a credit matching request; the smart contract receives the credit matching request and then broadcasts the credit matching request in the whole network; candidate lenders are screened out according to received lending requests of the lenders in response to the credit matching request, and a credit value set is created; a communication connection between the borrower and each candidate lender is established, and the borrower and the candidate lenders execute a credit value comparison protocol based on ElGamal homomorphic encryption and 1-Random coding according to the credit value set; and the smart contract checks whether the communication connection between the borrower and each candidate lender still exists after completion of the credit value comparison protocol, and if any communication connection does not exist, the credit matching request is ended. The privacy and authenticity of the user data are effectively ensured while the credit matching participants complete the credit transaction negotiation.

Description

technical field [0001] The present invention relates to the technical field of Internet credit, in particular to a privacy protection-based smart contract credit matching method, system, computer equipment and storage medium. Background technique [0002] With the rapid development of information technology, people's demand for credit is getting higher and higher, which has promoted the vigorous development of financial credit business such as housing loans, car loans, small loans, and Internet loans. At the same time, the authenticity, integrity and privacy of participant data in the credit process has gradually become an important issue that must be paid attention to in the credit field. [0003] Most of the existing technologies focus on solving the authenticity and integrity of participant data in the credit process. The corresponding solution is to introduce blockchain technology into the credit matching platform, based on the operation mechanism of the blockchain netwo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a smart contract credit matching method, which effectively solves the problem that the existing block chain credit matching platform can only guarantee the authenticity and integrity of data and events on the basis of ensuring the smooth completion of credit transaction negotiations. Unable to protect the data privacy of participants in credit transaction negotiations, and provide effective protection for the data information, property and personal safety of credit matching participants

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