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Quantum Electronic Contract Scheme Based on Single Photon

Tian Cao1, Yan Chang1, *, Lili Yan1, Shibin Zhang1, Qirun Wang2

1 College of Information Security Engineering, Chengdu University of Information Technology, Chengdu, 610225, China.
2 School of Engineering and Technology, University of Hertfordshire, Hertford, UK.

* Corresponding Author: Yan Chang. Email: email.

Computers, Materials & Continua 2020, 65(2), 1507-1517.


An electronic contract is a contract signed by electronic means, which is widely used in electronic commerce activities. In recent years, with the rapid development of quantum cryptography technology, the quantum electronic contract has been widely studied by researchers. Supported by the basic principles of quantum mechanics, a quantum electronic contract scheme based on the single photon is proposed in this paper. In this scheme, two copies of the same contract are signed by both parties involved, and then a copy of each contract is sent to a trusted third party. The trusted third party verifies the signatures of both parties and compares the signed copies to determine whether the contract is valid. Compared with the previous scheme, this scheme is based on the quantum electronic contract signed by the single photon. Because the single photon is easy to prepare and operate, this scheme is simple and easy to implement. At the same time, the scheme does not need to exchange signatures between the two parties, which reduces the complexity of communication. Nevertheless, it requires both parties and the third party to be honest and trustworthy.


Cite This Article

T. Cao, Y. Chang, L. Yan, S. Zhang and Q. Wang, "Quantum electronic contract scheme based on single photon," Computers, Materials & Continua, vol. 65, no.2, pp. 1507–1517, 2020.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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