Multi-signature method, computer equipment and storage medium

Abstract

The invention provides a multi-signature method, computer equipment and a storage medium. The method comprises the following steps: respectively acquiring each first signature data and a corresponding first public key and a first elliptic curve random number; generating a public key list of the multi-signature according to each first public key; generating first proof information according to the first target data, the public key list, the first signature data and the corresponding first elliptic curve random number; and generating a first multi-signature transaction including the first target data, the public key list and the first certification information, and sending the first multi-signature transaction to a block chain network, so that the multi-signature contract is proved to be executed through zero knowledge, inputting the first target data, the public key list, the first certification information and the verification parameter into a zero-knowledge certification circuit for multi-signature verification; verifying whether the number of public keys is not less than the number of signatures required by multi-signature; and verifying whether each signature identified by the public key list passes the verification. According to the invention, block chain system resources and user service fees are saved at the same time.

Description

technical field [0001] The present application relates to the technical field of the Internet, in particular to a multi-signature method, computer equipment and storage media. Background technique [0002] Current blockchain multi-signature schemes require each user to submit a signature through a separate transaction: [0003] For example, for a multi-signature with 6 users who have the signature authority and at least 4 of them need to sign to pass the verification, at least 4 of them need to sign with their own private keys and generate a transaction to send to the blockchain network middle; [0004] The blockchain node executes the four transactions separately through the multi-signature contract, and verifies the signature through the user's public key: if the verification is successful, the user's signature is recorded in the contract; [0005] When the number of signing users recorded in the contract is not less than the number of users required by the multi-signatu...

AI Technical Summary

Problems solved by technology

The prover proves to the verifier and makes him believe that he knows or has a certain message, but the proof process cannot leak any information about the proven message to the verifier

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