Presentation	2009-06-25 General discussion of randomizations for quantum stream cipher by Y-00 Osamu HIROTA,
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Abstract(in English)	It is well known that there is the Shannon limit for the conventional symmetric key cipher. However, there is no proof such that the Shannon limit is an absolute limitation. Hence it should be denoted that the conventional ciphers belong to the Shannon theoretical frame. If one can show a counter example, one may say that it is outside of the Shannon frame. Yuen protocol so called Y-00 is an example of the ciphers which get out of the Shannon frame. Y-00 consists of Gauss private randomization and quantum measurement theory. Unfortunately, the basic model of Y-00 gets out very small of the Shannon frame. The main subject of this paper is to discuss how to extend the attractive property of the basic model of Y-00 by means of randomization.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Random cipher / Y-00 / Quantum stream cipher
Paper #	OCS2009-12
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Conference Information
Committee	OCS
Conference Date	2009/6/18(1days)
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Paper Information
Registration To	Optical Communication Systems (OCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	General discussion of randomizations for quantum stream cipher by Y-00
Sub Title (in English)
Keyword(1)	Random cipher
Keyword(2)	Y-00
Keyword(3)	Quantum stream cipher
1st Author's Name	Osamu HIROTA
1st Author's Affiliation	Research Institute of Tamagawa University()
Date	2009-06-25
Paper #	OCS2009-12
Volume (vol)	vol.109
Number (no)	103
Page	pp.pp.-
#Pages	6
Date of Issue