摘要
针对基于委员会的区块链系统存在中心化程度高、节点投票积极性低、易被操纵等问题,提出一种基于多级委员会的去中心化节点管理方法。该方法引入节点综合评估模型对全网节点进行初步筛选,并设计积分衰退算法动态选举出块节点,保障系统的去中心化特性,最后引入奖惩激励机制促进节点在区块链系统中保持积极行为。实验表明,提出的多级架构与共识算法相较同类算法提高了区块链系统的去中心化水平,并在抗操纵能力、出块速度、节点投票积极性和恶意节点剔除速度等方面性能更佳。
In response to the challenges of high centralization,low node voting enthusiasm,and vulner‑ability to manipulation in committee-based blockchain systems,this paper proposes a decentralized node management method based on a multi-level committee structure.The method introduces a comprehensive node assessment model for preliminary screening of all network nodes,and incorporates a point decay al‑gorithm to dynamically elect block-producing nodes,thereby ensuring the system’s decentralized nature.Finally,a reward and punishment incentive mechanism is introduced to encourage nodes to maintain ac‑tive behavior within the blockchain system.Experiments show that the multi-level architecture and the proposed consensus algorithm improve the decentralization level of the blockchain system compared to similar algorithms,and achieve better performance in terms of resistance to manipulation,block produc‑tion speed,node voting enthusiasm,and the speed of malicious node removal.
作者
胡筱旋
喻天豪
董振江
孙雁飞
温砚
亓晋
HU Xiaoxuan;YU Tianhao;DONG Zhenjiang;SUN Yanfei;WEN Yan;QI Jin(College of Internet of Things,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Jiangsu Zhimeng Intelligent Technology Co.,Ltd.,Nanjing 210046,China)
出处
《南京邮电大学学报(自然科学版)》
2025年第5期85-93,共9页
Journal of Nanjing University of Posts and Telecommunications(Natural Science Edition)
基金
江苏省重点研发计划重点项目(BE2023025,BE2023025-1,BE2023025-4)
江苏省高等学校基础科学(自然科学)研究项目(22KJB520028)
南京邮电大学引进人才自然科学研究启动基金(NY221146)资助项目。
关键词
区块链
权益委托证明
多级委员会
积分衰退
blockchain
delegated proof of stake
multi-level committees
scoring decay
作者简介
胡筱旋,女,博士,讲师;通信作者:亓晋,男,博士,教授,qijin@njupt.edu.cn。
