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Proceedings Paper

Quantitative analysis of quantum noise masking in quantum stream cipher by intensity modulation operating at G-bit/sec data rate
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Paper Abstract

In any communication system, all data including encrypted data by the mathematical cipher are transmitted under the strict rule of the interface frame. Attacker can easily acquire the whole data the same as the data of legitimate users including the address, routing information and so on from the transmission line by tapping. This is very risky, especially for the secret sharing data center operations. So to hide the whole data in the transmission line is very attractive to ensure the high security level. This can be realized by Y-00 type random cipher that the ciphertext of simple mathematical cipher by PRNG is randomized by quantum noise and it gives a masking effect against the attacker's security analysis. This paper clarifies quantitative properties on the masking effect in the random cipher by Y-00 protocol, and shows the fact that a scheme by the intensity modulation may provide the greatest masking effect, even if the attacker employs the universal heterodyne receiver.

Paper Details

Date Published: 13 October 2011
PDF: 10 pages
Proc. SPIE 8189, Optics and Photonics for Counterterrorism and Crime Fighting VII; Optical Materials in Defence Systems Technology VIII; and Quantum-Physics-based Information Security, 818915 (13 October 2011); doi: 10.1117/12.897783
Show Author Affiliations
Takehisa Iwakoshi, Tamagawa Univ. (Japan)
Fumio Futami, Tamagawa Univ. (Japan)
Osamu Hirota, Tamagawa Univ. (Japan)


Published in SPIE Proceedings Vol. 8189:
Optics and Photonics for Counterterrorism and Crime Fighting VII; Optical Materials in Defence Systems Technology VIII; and Quantum-Physics-based Information Security
Roberto Zamboni; Mark T. Gruneisen; Colin Lewis; Miloslav Dusek; Douglas Burgess; François Kajzar; Attila A. Szep; John G. Rarity, Editor(s)

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