Design and Implementation of a Blockchain Relay for Quantum Key Distribution 


Vol. 46,  No. 3, pp. 563-571, Mar.  2021
10.7840/kics.2021.46.3.563


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  Abstract

A trusted key distribution can be achieved by Quantum Key Distribution (QKD) because malicious behaviors on key distribution process can be detected by the characteristics of quantum physics. However, additional relaying equipments are required for key distribution between remote nodes due to the limitation of physical transmission distance of a single photon. Furthermore, additional bottlenecks can be caused by relaying delay, link conflict because of the additional equipments. This paper describes a detailed design and implementation of key relay based on an open-source blockchain to support no limitation of physical transmission distance upon QKD. This paper includes communication channel, data structure and protocol that are required to create a blockchain smart contract. According to the experimental result, it achieves key distribution between two nodes without additional overhead.

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  Cite this article

[IEEE Style]

S. Park, J. Ahn, W. Seok, W. Lee, H. Ju, "Design and Implementation of a Blockchain Relay for Quantum Key Distribution," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 3, pp. 563-571, 2021. DOI: 10.7840/kics.2021.46.3.563.

[ACM Style]

Sejin Park, Jaewook Ahn, Woojin Seok, Wonhyuk Lee, and Hongtak Ju. 2021. Design and Implementation of a Blockchain Relay for Quantum Key Distribution. The Journal of Korean Institute of Communications and Information Sciences, 46, 3, (2021), 563-571. DOI: 10.7840/kics.2021.46.3.563.

[KICS Style]

Sejin Park, Jaewook Ahn, Woojin Seok, Wonhyuk Lee, Hongtak Ju, "Design and Implementation of a Blockchain Relay for Quantum Key Distribution," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 3, pp. 563-571, 3. 2021. (https://doi.org/10.7840/kics.2021.46.3.563)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880