Anonymous transfer method and system based on block chain, and storage medium

Abstract

The invention discloses an anonymous transfer method based on a block chain. The method comprises the steps that a first node initiates a transfer transaction request to a second node, and receives public key information returned by the second node; the first node generates transaction information of a current transaction and sends the transaction information to the second node, wherein the transaction information comprises a new currency commitment generated based on the public key information, a transaction amount encrypted based on the public key information, and a zero knowledge proof; thesecond node verifies the transaction amount encrypted based on the public key information, and if the verification is passed, the transaction information is published in a block chain network, so that a miner node can perform verification and bookkeeping on the current transaction; and the miner node verifies proof contents in the zero knowledge proof, and if the verification is passed, the transaction is determined to be valid and the transaction information is recorded in the block chain. The invention furthermore discloses an anonymous transfer system based on the block chain and a computer readable storage medium. According to the method and the system, anonymous transfer is realized, so that the privacy of information of two transaction parties of block chain-based transfer is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of blockchain finance, in particular to a blockchain-based anonymous transfer method, system and computer-readable storage medium. Background technique [0002] The existing blockchain network is a distributed network composed of participating institutions. Every transaction between any institution will be announced on the whole network, and all participating institutions will receive and record the transaction, thereby generating a ledger. This ledger exists in each institution and is the same. It is composed in order of transaction time and cannot be tampered with. [0003] Since the current transaction information based on blockchain technology is in the form of plain text, and each transfer transaction has a complete information record in each node, this will cause transaction information to exist in non-transaction related parties The risk of leakage, for example, the transfer transaction info...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a blockchain-based anonymous transfer method, system and computer-readable storage medium, aiming to solve the technical problem of how to prevent non-transaction related parties from obtaining transaction information in blockchain-based transfer transactions

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