Blockchain node identity verification method

Abstract

The invention discloses a blockchain node identity verification method, which adopts a blockchain composed of at least two blockchain nodes, wherein legal node public keys of the blockchain nodes in all blockchains are stored in each blockchain node; the blockchain node verifies the node public key of the blockchain node transmitting a transaction group before receiving transaction data of the transaction group, and when the verification fails, the current blockchain node refuses to receive the transaction data; upon successful verification, a total timer is started and sequentially receives the transaction data of the transaction group, and when the timing period of the total timer arrives or the quantity of the received transaction data reaches the set maximum quantity, the received transaction data is packaged and attached with the node public key of the current blockchain node, and the packaged transaction data and the node public key are transmitted to the next blockchain node, thereby repeating until the transaction data of the transaction group is completely transmitted. The legality of signature authentication is ensured by means of the legal node public key white list, sothat the blockchain node identity verification method is suitable for various network environments and has high practicability.

Description

technical field [0001] The invention relates to the field of block chains, in particular to a block chain node identity verification method. Background technique [0002] The blockchain system is composed of multiple peer-to-peer blockchain nodes. The transaction between each node is an important guarantee for the safe operation of the blockchain system. The transaction is to send the node signature to other nodes for identity verification through the current node. , also known as signature verification, and then perform subsequent operations. [0003] In the existing technology, only a single signature authentication is performed on the transaction, that is, a signature authentication is performed on the transaction cache, which ensures that the signature verification between transactions is relatively independent. It will affect the security and verification process of other transactions, increase the attack cost of malicious nodes, and ensure the security of system trans...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems existing in the above-mentioned prior art, and provide a block chain node identity verification method, so that the present invention can adjust the timing of cached transaction group signatures according to different network environments, thereby matching the most suitable signatures for the current network environment The verification scheme solves the problem of balance between network throughput and transaction independent verification security of transaction group signatures in the face of different network environments, and the problem that transactions cannot be signed and delivered to the network in time due to batch signatures when the number of transactions is small

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