Towards Quantum-Secured Permissioned Blockchain: Signature, Consensus, and Logic
While 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 q...
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| Veröffentlicht in: | Entropy (Basel, Switzerland) Jg. 21; H. 9; S. 887 |
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| Abstract | While 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. |
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| AbstractList | While 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. |
| Author | Sopek, Mirek Kulicki, Piotr Sun, Xin Wang, Quanlong |
| AuthorAffiliation | 1 Institute of Logic and Cognition, Sun Yat-sen University, Guangzhou 510275, China; xin.sun.logic@gmail.com 2 MakoLab SA, 91062 Łódź, Poland; sopek@makolab.com 4 Department of the Foundations of Computer Science, Catholic University of Lublin, 20950 Lublin, Poland 3 Department of Computer Science, University of Oxford, Oxford OX13QD, UK; quaang@cs.ox.ac.uk |
| AuthorAffiliation_xml | – name: 1 Institute of Logic and Cognition, Sun Yat-sen University, Guangzhou 510275, China; xin.sun.logic@gmail.com – name: 2 MakoLab SA, 91062 Łódź, Poland; sopek@makolab.com – name: 4 Department of the Foundations of Computer Science, Catholic University of Lublin, 20950 Lublin, Poland – name: 3 Department of Computer Science, University of Oxford, Oxford OX13QD, UK; quaang@cs.ox.ac.uk |
| Author_xml | – sequence: 1 givenname: Xin orcidid: 0000-0001-9320-2522 surname: Sun fullname: Sun, Xin – sequence: 2 givenname: Mirek surname: Sopek fullname: Sopek, Mirek – sequence: 3 givenname: Quanlong surname: Wang fullname: Wang, Quanlong – sequence: 4 givenname: Piotr surname: Kulicki fullname: Kulicki, Piotr |
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| SubjectTerms | Algorithms Blockchain Boolean Communication consensus digital signature Digital signatures lottery Quantum computers Quantum computing Quantum cryptography |
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| Title | Towards Quantum-Secured Permissioned Blockchain: Signature, Consensus, and Logic |
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| Volume | 21 |
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