Quantum key distribution with unconditional security for all optical fiber network

Osamu Hirota; Kentaro Kato; Masaki Shoma; Tsuyoshi Sasaki Usuda

doi:10.1117/12.504978

3 February 2004 Quantum key disribution with unconditional security for all-optical fiber network

Osamu Hirota, Kentaro Kato, Masaki Shoma, Tsuyoshi Sasaki Usuda

Proceedings Volume 5161, Quantum Communications and Quantum Imaging; (2004) https://doi.org/10.1117/12.504978
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Previously the present protocol was referred as Yuen-Kim second version in our papers. In this paper, it is called Yuen protocol (Y-00) and we present an efficient implementation method of physical layer of Y-00 which can support a secure communication and a quantum key distribution (more generally key expansion) by IMDD (intensity modulation/direct detection) or FSK (frequency shift keying) optical fiber communication network. Although the general proof of the security is not yet given, a brief sketch of security analysis is shown, which involve an entanglement attack.

Citation Download Citation

Osamu Hirota, Kentaro Kato, Masaki Shoma, and Tsuyoshi Sasaki Usuda "Quantum key disribution with unconditional security for all-optical fiber network", Proc. SPIE 5161, Quantum Communications and Quantum Imaging, (3 February 2004); https://doi.org/10.1117/12.504978

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