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dc.contributorDepartment of Computingen_US
dc.contributor.advisorXiao, Bin (COMP)-
dc.creatorShu, Chang-
dc.identifier.urihttps://theses.lib.polyu.edu.hk/handle/200/10159-
dc.languageEnglishen_US
dc.publisherHong Kong Polytechnic University-
dc.rightsAll rights reserveden_US
dc.titleDual replication : a novel byzantine fault tolerance consensus algorithm in hyperledger fabricen_US
dcterms.abstractNowaday, Blockchain system has applied in many different areas, for it decentralized and disintermediation. Utilized a Blockchain system can help peers do interactiviting when they do not actually familiar with each other nor need a third-party credit organization. Permitted Blockchain system are expanded as its own advantage. Compare with original decentralized Blockchain as bitcoin, permitted Blockchain cost significant less and has higher thoughput. And those advantages will help the commercial users developing their own system agilely. Hyperledger Fabric[1], as modular and extensible distributed system, has cyclopedic users. But on their recent KAFKA consensus module, we found a potential attack method. In this paper, we will discuss this kind of potential attack and gives out our solution. And for further, we will introduce the IoV[17], which proposed an mechanism to evaluate the credit to value the trust of peers on the system, and put forward our own calculating method to the IoV combine with our consensus algorithm to make the permitted Blockchain more robustness.en_US
dcterms.extentvii, 76 pages : color illustrationsen_US
dcterms.isPartOfPolyU Electronic Thesesen_US
dcterms.issued2019en_US
dcterms.educationalLevelM.Sc.en_US
dcterms.educationalLevelAll Masteren_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.LCSHBlockchains (Databases)en_US
dcterms.LCSHDatabase securityen_US
dcterms.LCSHApplication software -- Developmenten_US
dcterms.accessRightsrestricted accessen_US

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Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/10159