华侨大学学报（自然科学版）2026，Vol.47Issue(2)：153-163,11.DOI:10.11830/ISSN.1000-5013.202508031
概率信任驱动的分层异步BFT协议
Probabilistic Trust-Driven Hierarchical Asynchronous Byzantine Fault Tolerance Protocol
摘要
Abstract
To address the challenges of node heterogeneity,dynamic communication,and frequent failures in decentralized physical infrastructure networks,a probabilistic trust-driven hierarchical asynchronous Byzantine Fault Tolerance(PT-HABFT)protocol is proposed.The proposed protocol integrates a Gaussian-Bayesian reputation model that combines node geolocation,network latency,and historical behavior into multidimen-sional feature vectors to achieve dynamic trust evaluation and access control.An asynchronous hierarchical structure with decoupled sub-layer local consensus and upper-layer global aggregation is adopted,and a pipe-line verification mechanism is designed to support multi-stage concurrent processing.Furthermore,a reputa-tion-driven weight adjustment and view-switching strategy is developed to enhance robustness.Theoretical a-nalysis demonstrates that the proposed protocol satisfies both consistency and liveness under Byzantine fault tolerance assumptions.Experiments on the Bamboo framework show that,with 128 nodes,PT-HABFT a-chieves approximately eightfold increase throughput and 58％lower communication overhead compared with the HotStuff protocol.关键词
拜占庭容错/高斯-贝叶斯声誉模型/多源信息融合/分层共识/并行异步结构Key words
Byzantine Fault Tolerance/Gaussian-Bayesian reputation model/multi-source information fusion/hierarchical consensus/parallel asynchronous structure分类
信息技术与安全科学引用本文复制引用
李舒婷,郭荣新,施一帆..概率信任驱动的分层异步BFT协议[J].华侨大学学报（自然科学版）,2026,47(2):153-163,11.基金项目
国家自然科学青年基金资助项目(62306122) （62306122）
福建省科技项目引导性项目(2023H0012) （2023H0012）
