Blockchain Consensus Mechanism Based on Quantum Teleportation

Xiaojun Wen, Yongzhi Chen, Wei Zhang, Zoe L. Jiang and Junbin Fang
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Xiaojun Wen: College of Computer Engineering, Shenzhen Polytechnic, Shenzhen 518055, China
Yongzhi Chen: College of Physics, College of Mechanical and Electrical Engineering, Shijiazhuang University, Shijiazhuang 050035, China
Wei Zhang: College of Physics, College of Mechanical and Electrical Engineering, Shijiazhuang University, Shijiazhuang 050035, China
Zoe L. Jiang: College of Computer Science and Technology, Harbin Institute of Technology, Shenzhen 518055, China
Junbin Fang: Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China

Mathematics, 2022, vol. 10, issue 14, 1-9

Abstract: The consensus mechanism is the core secret of the blockchain network. However, the consensus mechanism of the classical blockchain is based on the classical cryptosystem, which is based on the problem of computational complexity. With the improvement of computing power, the security of this cryptosystem is being threatened. In addition, the consensus mechanism of classic blockchain also has the following disadvantages: serious waste of computing resources and energy; the inability to withstand a 51% attack; low system throughput and large delay. Based on quantum teleportation technology and the randomness of quantum measurement, a consensus mechanism for a quantum blockchain system is proposed. Based on the physical properties of quantum mechanics, this scheme has the unconditional security of quantum cryptography. This new consensus mechanism does not involve a great deal of computing resources and hence has a lower energy consumption, shorter time delay and higher throughput. Furthermore, the new consensus mechanism could withstand a 51% attack.

Keywords: blockchain; consensus mechanism; quantum teleportation; quantum measurement (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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