Threshold voting method based on blockchain consensus and related device

Abstract

The embodiment of the invention provides a threshold voting method based on blockchain consensus and a related device. The threshold voting method and the related device are used for improving the aggregation speed and verification speed of aggregation nodes and verification nodes. The method provided by the embodiment of the invention comprises the following steps: acquiring an identity identification code and / or a public key of each signature node; receiving signature data sent by the voting node in the current voting period; judging whether the voting node changes before and after voting according to the identity identification code and / or the public key corresponding to each signature node; if not, when the ratio of the number N of the voting nodes to the total number M of all the signature nodes exceeds a first threshold T, adopting a genetic algorithm to select a first preset number A of preferred nodes from the voting nodes in the current voting period, wherein A is not larger than N and not smaller than the product of M and T; aggregating the signature data sent by the optimal node in the current voting period by adopting a BLS signature to obtain aggregated signature data;and sending the aggregated signature data and the identity identification code corresponding to the preferred node to a verification node.

Description

technical field [0001] The present application relates to the technical field of blockchain, in particular to a threshold voting method and related devices based on blockchain consensus. Background technique [0002] In order to send a valid transaction on any blockchain, the following steps must be taken: 1. Construct a valid transaction; 2. Sign the transaction with the corresponding private key of the account or UTXO; 3. Submit the signed transaction to the network; 4. Miners (or node verifiers) verify the transaction and signature; 5. The transaction is placed in a block and the relevant blockchain status is updated. [0003] The process of using the corresponding private key to sign the transaction in step 2 can be understood as the process of signing the transaction. At present, in the blockchain, most of the transactions are signed using multiple signatures, such as the BLS multi-signature scheme. Its full name is (Bohen- Lynn-Shacham) signature scheme, which can be ...

AI Technical Summary

Problems solved by technology

[0008] Discrete logarithm multiplication is relatively time-consuming compared to general operations

When N is very large, the verification node will have a large amount of calculation for the aggregation of the public key, and the aggregation of the public key will become the bottleneck of the entire system

Images