通信学报2024，Vol.45Issue(9)：40-54,15.DOI:10.11959/j.issn.1000-436x.2024144
面向学位/学历证书可信管理的可扩展类PBFT算法
Scalable PBFT-like algorithm for trust management of degree/graduation certificates
摘要
Abstract
"Blockchain+education"offers a solution for trust management of degree/graduation certificates.Existing methods for managing degree/graduation certificates suffer from issues such as lacked optimization strategies for node expansion,neglect of node heterogeneity,and low through put.A scalable PBFT-like algorithm for trust management of de-gree/graduation certificates was proposed to address the above issues,called z-PBFT.The algorithm was based on a hierarchical design using regional grouping,with a model consisting of main region and sub-region node clusters.Local consensus was employed within the sub-regions.A weighted random allocation strategy based on TOPSIS modeling and entropy weighting was used to evaluate node performance and select a consensus committee node set.Analysis and simu-lation experiments demonstrate that the proposed algorithm ensures security while achieving higher throughput and scal-ability in large-scale applications of degree/graduation certificate trust management.关键词
z-PBFT共识算法/学位/学历证书/可扩展性/区块链Key words
z-PBFT consensus algorithm/degree/graduation certificate/scalability/blockchain分类
信息技术与安全科学引用本文复制引用
张学旺,雷志滔,林金朝..面向学位/学历证书可信管理的可扩展类PBFT算法[J].通信学报,2024,45(9):40-54,15.基金项目
国家自然科学基金资助项目(No.U21A20447)The National Natural Science Foundation of China(No.U21A20447) （No.U21A20447）
