基于节点可信度的改进PBFT算法  

Improved PBFT algorithm based on node credibility

作　　者：韩璐[1] 翟健宏[1] 杨茹 HAN Lu;ZHAI Jianhong;YANG Ru(School of Cyberspace Science,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工业大学网络空间安全学院,哈尔滨150001

出　　处：《智能计算机与应用》2023年第7期191-200,F0003,共11页Intelligent Computer and Applications

基　　金：黑龙江省自然科学基金联合引导项目(JJ2019LH0412)。

摘　　要：本文主要是对区块链的核心技术—共识算法进行深入了解,在联盟链中难以避免会有恶意节点的存在,在节点达成共识的过程中,恶意节点将会散布不实信息,影响数据的一致性。本文对区块链防作弊技术进行研究,提出了一种基于节点可信度的NRPBFT(node-reliability-based PBFT consensus algorithm)共识算法,利用节点的可信度将所有的节点分成普通节点和共识节点,提高了共识的效率,降低了主节点作恶的可能性。This paper mainly focuses on the in-depth understanding of the core technology of blockchain-consensus algorithm.It is difficult to avoid the existence of malicious nodes in the alliance chain.In the process of nodes reaching consensus,malicious nodes can spread false information and affect the consistency of data.In this paper,the anti cheating technology of blockchain is studied,and a node-reliability-based PBFT consensus algorithm(NRPBFT consensus algorithm)is proposed.By using the reliability of nodes,all nodes are divided into ordinary nodes and consensus nodes,which improves the efficiency of consensus and reduces the possibility of the master node engaged in malicious activity.

关 键 词：区块链 NRPBFT 共识算法 可信度计算 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]