A multi-path parallel byzantine fault tolerance consensus method based on a multi-committee mechanism

By optimizing the BFT consensus process through a multi-committee mechanism and a cross-path collaborative submission mechanism, the problems of high communication overhead and high latency in large-scale replica scenarios are solved, achieving high consensus efficiency and security, and improving the performance of the blockchain system.

CN122247590APending Publication Date: 2026-06-19GUILIN UNIV OF ELECTRONIC TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUILIN UNIV OF ELECTRONIC TECH
Filing Date
2026-04-13
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing BFT consensus protocols suffer from high communication overhead, large consensus latency, and inefficient timeout view switching mechanisms in large-scale replica scenarios, making it difficult to fully leverage the advantages of parallelization while ensuring security and liveness.

Method used

A multi-committee mechanism is adopted, which groups the replicas into multiple parallel committees. Combined with a two-level leader election and cross-path collaborative submission mechanism, the consensus process is optimized through local and global timeout handling mechanisms, reducing communication overhead and improving efficiency.

Benefits of technology

It significantly reduces consensus latency and communication overhead in large-scale replica scenarios, improves system throughput and scalability, and ensures protocol activity and security.

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Abstract

This invention proposes a multi-committee parallel Byzantine fault-tolerant consensus method, GP-BFT. This method groups system replicas into multiple independent committees based on the minimum Byzantine fault tolerance parameter. Each committee executes consensus in parallel, effectively reducing intra-group communication. A two-level leader election is employed: each committee elects a first-level leader responsible for intra-group consensus, and a second-level leader is elected from among the first-level leaders using a threshold coin to coordinate globally. A dual timeout handling mechanism is designed: when less than half of the committees time out, cross-path collaborative commit is used, leveraging committees that have completed consensus to drive the timed-out committees to quickly resubmit; when more than half of the committees time out, aggregated timeout certificates are used to advance the global round. This method significantly reduces consensus latency and communication overhead in large-scale replica scenarios while ensuring security and liveness.
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