一种基于信誉值的多层委托权益证明共识机制  

A Consensus Mechanism Based on Reputation Value for Multilayer Proxy Proof of Rights and Interests

作　　者：徐刚 姚腾锴 孟祥飞 高天昊 单伯瑜 XU Gang;YAO Tengkai;MENG Xiangfei;GAO Tianhao;SHAN Boyu(School of Information Science and Technology,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学信息学院,北京100144

出　　处：《北方工业大学学报》2024年第1期118-125,共8页Journal of North China University of Technology

基　　金：国家自然科学基金重大研究计划项目(92046001)。

摘　　要：针对委托权益证明共识机制(Delegated Proof of Stake,DPoS)中存在的节点选举不合理、中心化风险增加、节点投票不积极等问题,本文提出一种基于信誉值的多层委托权益证明共识机制(Reputation-based Multilayer Delegated Proof of Stake,RM-DPoS)。首先,提出基于信誉值的节点投票票据评估模型,计算节点信誉值,确定节点的投票权重。其次,引入多层委托投票机制,将投票节点分为不同层次,并允许投票节点将投票权重委托给更高一级的代理节点,防止权力过于集中,化解中心化风险。最后,设计了节点激励方案,依据信誉值和沙普利值进行代币奖励和惩罚,鼓励节点积极投票,维护系统稳定性。实验结果表明,RM-DPoS能够有效解决DPoS共识机制中的问题,能够防范中心化风险,增强系统的稳定性和安全性,具有广泛的应用潜力。A Reputation⁃based Multilayer Delegated Proof of Stake(RM⁃DPoS)consensus mechanism is proposed in this paper to address the issues of unreasonable node election,increased centralization risk,and lack of active node voting in the Delegated Proof of Stake(DPoS)consensus mechanism.Firstly,a voting ticket evaluation model based on reputation is introduced to determine the voting weight of nodes and select more secure nodes as committee nodes.Secondly,a multi⁃layer delegation voting mechanism is introduced,where voting nodes are divided into different levels and allowed to delegate their voting weights to higher⁃level proxy nodes,preventing excessive centralization of power and mitigating centralization risks.Lastly,a node incentive scheme is designed,providing token rewards and penalties based on reputation and shapley value,encouraging nodes to actively participate in voting and maintain system stability.Experimental results demonstrate that RM⁃DPoS effectively addresses issues in the DPoS consensus mechanism,mitigates centralization risks,enhances system stability and security,and exhibits broad potential for applications.

关 键 词：委托权益证明共识机制 信誉值 多层委托投票 沙普利值 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]