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Paper Abstract and Keywords
Presentation 2011-06-30 13:00
Absolutely Secure Message Transmission Using a Key Sharing Graph
Yoshihiro Indo (Kwansei Gakuin Univ.), Takaaki Mizuki (Tohoku Univ.), Takao Nishizeki (Kwansei Gakuin Univ.) COMP2011-18
Abstract (in Japanese) (See Japanese page) 
(in English) Assume that there are players and an eavesdropper of unlimited computational power and that several pairs of players have shared secret keys beforehand. A key sharing graph is one in which each vertex corresponds to a player, and each edge corresponds to a secret key shared by the two players corresponding to the ends of the edge. Given a key sharing graph, a player wishes to send a message to another player so that the eavesdropper and any other player can get no information on the message. In this paper, we give a necessary and sufficient condition on a key sharing graph for the existence of a protocol for such a purpose. We also give a sufficient condition for the existence of a protocol for the case where a player sends a message to a multiple number of other designated players.
Keyword (in Japanese) (See Japanese page) 
(in English) Message transmission / Key sharing graph / Eavesdropper / Absolutely secure / Biconnected graph / Internally disjoint paths / Tree /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 113, COMP2011-18, pp. 17-23, June 2011.
Paper # COMP2011-18 
Date of Issue 2011-06-23 (COMP) 
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)
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Conference Information
Committee COMP  
Conference Date 2011-06-30 - 2011-06-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2011-06-COMP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Absolutely Secure Message Transmission Using a Key Sharing Graph 
Sub Title (in English)  
Keyword(1) Message transmission  
Keyword(2) Key sharing graph  
Keyword(3) Eavesdropper  
Keyword(4) Absolutely secure  
Keyword(5) Biconnected graph  
Keyword(6) Internally disjoint paths  
Keyword(7) Tree  
Keyword(8)  
1st Author's Name Yoshihiro Indo  
1st Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
2nd Author's Name Takaaki Mizuki  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Takao Nishizeki  
3rd Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
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Speaker Author-1 
Date Time 2011-06-30 13:00:00 
Presentation Time 35 minutes 
Registration for COMP 
Paper # COMP2011-18 
Volume (vol) vol.111 
Number (no) no.113 
Page pp.17-23 
#Pages
Date of Issue 2011-06-23 (COMP) 


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