Presentation 2008-06-13
Y-00 is Broken
Masataka OHTA,
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Abstract(in English) Y-00, a quantum cryptographic system, uses mesoscopic number of photons having a phase (polarization) angle based on a pseudo random number generated from shared secret and a signal bit. Without knowledge on the pseudo random numbers, it is difficult to restore signal bits themselves, because of quantum uncertainty on angles. However, even with the uncertain angle measurements, a lot of information on the pseudo random numbers leaks so that privacy amplification is impossible. That is, Y-00 is broken.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Quantum Cryptography / Y-00 / Privacy Amplification
Paper # PN2008-13
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Committee PN
Conference Date 2008/6/5(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Y-00 is Broken
Sub Title (in English)
Keyword(1) Quantum Cryptography
Keyword(2) Y-00
Keyword(3) Privacy Amplification
1st Author's Name Masataka OHTA
1st Author's Affiliation Graduate School of Information Science and Engineering, Tokyo Institute of Technology()
Date 2008-06-13
Paper # PN2008-13
Volume (vol) vol.108
Number (no) 84
Page pp.pp.-
#Pages 2
Date of Issue