3 February 2004 Quantum key disribution with unconditional security for all-optical fiber network
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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.
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Osamu Hirota, Kentaro Kato, Masaki Shoma, 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); doi: 10.1117/12.504978; https://doi.org/10.1117/12.504978


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