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Paper Abstract and Keywords
Presentation 2009-09-25 11:35
Spy satellite system with quasi perfect secrecy by quantum stream cipher Y-00 -- Beyond the Shannon limit --
Osamu Hirota (Tamagawa Univ.) ISEC2009-42
Abstract (in Japanese) (See Japanese page) 
(in English) It is well known that there is the Shannon limit for information theoretic security of the conventional symmetric key cipher. However, it is pointed out that
the Shannon limit is not 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. There are still negative campaign against Y-00 based on the irrelevant paper. This paper proves that Y-00 cannot be described by Shannon theory, showing an explicit example.
Keyword (in Japanese) (See Japanese page) 
(in English) Random cipher / Shannon limit / Quantum stream cipher / Y-00 / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 207, ISEC2009-42, pp. 15-22, Sept. 2009.
Paper # ISEC2009-42 
Date of Issue 2009-09-18 (ISEC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ISEC2009-42

Conference Information
Committee ISEC  
Conference Date 2009-09-25 - 2009-09-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ISEC 
Conference Code 2009-09-ISEC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spy satellite system with quasi perfect secrecy by quantum stream cipher Y-00 
Sub Title (in English) Beyond the Shannon limit 
Keyword(1) Random cipher  
Keyword(2) Shannon limit  
Keyword(3) Quantum stream cipher  
Keyword(4) Y-00  
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1st Author's Name Osamu Hirota  
1st Author's Affiliation Tamagawa University (Tamagawa Univ.)
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Speaker Author-1 
Date Time 2009-09-25 11:35:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # ISEC2009-42 
Volume (vol) vol.109 
Number (no) no.207 
Page pp.15-22 
#Pages 8 
Date of Issue 2009-09-18 (ISEC) 

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