Quantum stream cipher by the Yuen 2000 protocol: Design and experiment by an intensity-modulation scheme
作者： Osamu Hirota , Masaki Sohma , Masaru Fuse , Kentaro Kato
DOI: 10.1103/PHYSREVA.72.022335
关键词: Physics 、 Fluhrer, Mantin and Shamir attack 、 Stream cipher 、 Affine cipher 、 Block cipher 、 Discrete mathematics 、 Transposition cipher 、 Stream cipher attack 、 Two-square cipher 、 Differential cryptanalysis
摘要: We investigate the Yuen 2000 (so-called Y-00)-protocol, which can realize a randomized stream cipher with high bit rate (Gbit/s) for long distances (several hundreds km). The randomization by quantum noise based on Y-00 protocol is called in this paper, and it may have security against known plaintext attacks has no analog any conventional symmetric key ciphers. present simple cryptanalysis an attacker's heterodyne measurement unambiguous to make clear strength of real communication. In addition, we give design implementation intensity-modulation scheme report experimental demonstration $1\phantom{\rule{0.3em}{0ex}}\mathrm{Gbit}∕\mathrm{s}$ through $20\text{\ensuremath{-}}\mathrm{km}$-long transmission line.
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