DOAJ Open Access 2023

Advantage of the Key Relay Protocol Over Secure Network Coding

Go Kato Mikio Fujiwara Toyohiro Tsurumaru

Abstrak

The key relay protocol (KRP) plays an important role in improving the performance and the security of quantum key distribution networks. On the other hand, there is also an existing research field called secure network coding (SNC), which has similar goal and structure. In this article, we analyze differences and similarities between KRPs in general and key relay using SNC schemes (KRPs-by-SNC) rigorously. We found, rather surprisingly, that there is a definite gap in security between KRPs in general and KRPs-by-SNC; that is, certain KRPs achieve better security than any SNC schemes on the same graph. We also found that this gap can be closed if we generalize the notion of SNC by adding authenticated public channels; that is, KRPs are equivalent to KRPs-by-SNC schemes augmented with authenticated public channels.

Topik & Kata Kunci

Atomic physics. Constitution and properties of matter Materials of engineering and construction. Mechanics of materials

Penulis (3)

Go Kato

Mikio Fujiwara

Toyohiro Tsurumaru

Format Sitasi

APA MLA BibTeX

Kato, G., Fujiwara, M., Tsurumaru, T. (2023). Advantage of the Key Relay Protocol Over Secure Network Coding. https://doi.org/10.1109/TQE.2023.3309590

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1109/TQE.2023.3309590
Akses: Open Access ✓