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Paper Abstract and Keywords
Presentation 2011-01-27 15:15
Defect of quantum key distribution and proposal of a new method
Osamu Hirota, Dan Murakami (Tamagawa Univ.) OCS2010-104
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, a serious defect in the quantitative evaluation for quantum key distribution has been derived. So we need to reform the security analysis. In the previous paper, we have shown the examples on the defect of the security based on the mutual information criterion. This paper first analizes the security claim of the recent experimental system of QKD performed by NEC and others, and clarify the mistake of the claim.
In addition, we show the examples of the fact that any criterion for the security guarantee so far proposed is not adequate to ensure the security.
As a result, it is confirmed that the Vernam cipher supported by QKD is far from the perfect secrecy, and it may become more fragile than the conventional cipher.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum cryptography / Quantum key distribution / Praivacy amplification / Security analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 392, OCS2010-104, pp. 31-36, Jan. 2011.
Paper # OCS2010-104 
Date of Issue 2011-01-20 (OCS) 
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 OCS2010-104

Conference Information
Committee OCS CS  
Conference Date 2011-01-27 - 2011-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Tokushima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Core/metro system, Optical access system/next generation PON, Broadband access system, (Wide area)Ethernet, Optical transport network(OTN), High-speed interface, Analog optaical transmission, Quantum communication etc. 
Paper Information
Registration To OCS 
Conference Code 2011-01-OCS-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Defect of quantum key distribution and proposal of a new method 
Sub Title (in English)  
Keyword(1) Quantum cryptography  
Keyword(2) Quantum key distribution  
Keyword(3) Praivacy amplification  
Keyword(4) Security analysis  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Osamu Hirota  
1st Author's Affiliation Tamagawa University (Tamagawa Univ.)
2nd Author's Name Dan Murakami  
2nd Author's Affiliation Tamagawa University (Tamagawa Univ.)
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Speaker Author-1 
Date Time 2011-01-27 15:15:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2010-104 
Volume (vol) vol.110 
Number (no) no.392 
Page pp.31-36 
#Pages 6 
Date of Issue 2011-01-20 (OCS) 

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