Anonymous multi-signature method, computer equipment and storage medium

Abstract

The invention provides an anonymous multi-signature method, computer equipment and a storage medium. The method comprises the following steps: generating a first repeated verification hash according to a second private key and a first ID; taking the first ID, the first repeated verification hash and the root of the first Merkel tree as public input of a circuit certification algorithm, and taking the second private key, the second address and the path information as private input to generate first certification information; generating a first anonymous multi-signature transaction comprising the first ID, the first repeated verification hash, the tree root and the first certification information, sending the first anonymous multi-signature transaction to the block chain network for execution by the node, and inputting each item of second repeated verification hash, the verification parameter, the first ID, the first repeated verification hash, the tree root and the first certification information into a circuit verification algorithm for verification; if yes, storing the first repeated verification Hash into the contract, and judging whether the number of the repeated verification Hash accords with a verification threshold or not; if yes, determining that the multi-signature verification succeeds. According to the invention, anonymous multiple signatures on the block chain are realized.

Description

technical field [0001] The present application relates to the technical field of the Internet, in particular to an anonymous multi-signature method, computer equipment and storage media. Background technique [0002] The current blockchain multi-signature schemes are public signature schemes: [0003] Users participating in multi-signatures sign with their own private keys and generate transactions and send them to the blockchain network; [0004] The blockchain node executes the transaction through a 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 exceeds the number of users required by multi-signature, for example, 2 / 3 of the total number of users, the multi-signature verification is successful. [0006] The above scheme very clearly exposes which users participate in multi-signature an...

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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