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dc.contributorDepartment of Computingen_US
dc.contributor.advisorXiao, Bin (COMP)en_US
dc.creatorOuyang, Yunchen-
dc.identifier.urihttps://theses.lib.polyu.edu.hk/handle/200/11390-
dc.languageEnglishen_US
dc.publisherHong Kong Polytechnic Universityen_US
dc.rightsAll rights reserveden_US
dc.titleEfficient query in blockchainen_US
dcterms.abstractBlockchain technology has brought a new decentralization scheme to society, but individual users need to pay a lot of cost in obtaining verifiable information on the blockchain. Most of the existing blockchain browsers are not open source, so they can not obtain their source code, so they can not guarantee the credibility of their data. Even if the open-source browsers are open-source, they do not provide proof of data holding. This paper first constructs the blockchain quick query system, on this basis, it also provides the integrity proof for the cloud database of the fast query system. The integrity proof scheme of cloud database is: to generate a specific fingerprint for each certain number of blockchain data blocks. In the process of subsequent operation of the system, the integrity of the cloud database is continuously challenged by random sampling, and the challenge results are recorded for users to check.en_US
dcterms.extent56 pages : color illustrationsen_US
dcterms.isPartOfPolyU Electronic Thesesen_US
dcterms.issued2021en_US
dcterms.educationalLevelM.Sc.en_US
dcterms.educationalLevelAll Masteren_US
dcterms.LCSHBlockchains (Databases)en_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.accessRightsrestricted accessen_US

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