Towards Quantum-Secured Permissioned Blockchain: Signature, Consensus, and Logic

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dc.contributor.authorSun, Xin
dc.contributor.authorSopek, Mirek
dc.contributor.authorWang, Qauanlong
dc.contributor.authorKulicki, Piotr
dc.date.accessioned2020-05-26T10:51:23Z
dc.date.available2020-05-26T10:51:23Z
dc.date.issued2019-09-12
dc.description.abstractWhile Blockchain technology is universally considered as a significant technology for the near future, some of its pillars are under a threat of another thriving technology, Quantum Computing. In this paper, we propose important safeguard measures against this threat by developing a framework of a quantum-secured, permissioned blockchain called Logicontract (LC). LC adopts a digital signature scheme based on Quantum Key Distribution (QKD) mechanisms and a vote-based consensus algorithm to achieve consensus on the blockchain. The main contribution of this paper is in the development of: (1) unconditionally secure signature scheme for LC which makes it immune to the attack of quantum computers; (2) scalable consensus protocol used by LC; (3) logic-based scripting language for the creation of smart contracts on LC; (4) quantum-resistant lottery protocol which illustrates the power and usage of LC.pl
dc.description.sponsorshipMinister of Science and Higher Educationpl
dc.identifier.citation"Entropy" 2019, 21(9), 887pl
dc.identifier.doi10.3390/e21090887
dc.identifier.urihttp://hdl.handle.net/20.500.12153/1158
dc.language.isoenpl
dc.publisherMDPIpl
dc.relation028/RID/2018/19pl
dc.rightsUznanie autorstwa 4.0 Międzynarodowe*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.pl*
dc.subjectblockchainpl
dc.subjectquantum computingpl
dc.subjectconsensuspl
dc.subjectdigital signaturepl
dc.subjectlotterypl
dc.titleTowards Quantum-Secured Permissioned Blockchain: Signature, Consensus, and Logicpl
dc.typeinfo:eu-repo/semantics/articlepl
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