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Paper Abstract and Keywords
Presentation 2014-03-11 11:00
A Note on Indistinguishability of Fail-Stop Signature Schemes
Masahiro Nomura, Katsuhiro Nakamura (Chiba Univ.) IT2013-79 ISEC2013-108 WBS2013-68
Abstract (in Japanese) (See Japanese page) 
(in English) Fail-Stop signature (FSS) schemes are digital signature schemes in which there are many signatures that pass the signature verification other than the valid signature. From this, it is considered that unforgeability of FSS schemes holds even in the case where adversaries have unlimited computational power, while that of "ordinary" digital signature schemes holds only in the case where adversaries have polynomially-bounded computational power. In this paper, indistinguishability between the valid signature and a non-valid signature is innovated as an security requirement of FSS schemes for the purpose that an FSS scheme is used as a sub-protocol. Then, the relation between indistinguishability and unforgeability is discussed in order to clarify the role of indistinguishability in FSS schemes.
Keyword (in Japanese) (See Japanese page) 
(in English) Digital Signature Schemes / Fail-Stop Signature Schemes / Information Theoretic Security / Unforgeability / Indistinguishability / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 484, ISEC2013-108, pp. 155-161, March 2014.
Paper # ISEC2013-108 
Date of Issue 2014-03-03 (IT, ISEC, WBS) 
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 IT2013-79 ISEC2013-108 WBS2013-68

Conference Information
Committee ISEC IT WBS  
Conference Date 2014-03-10 - 2014-03-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Univ., Higashiyama Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) joint meeting of IT, ISEC, and WBS 
Paper Information
Registration To ISEC 
Conference Code 2014-03-ISEC-IT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Note on Indistinguishability of Fail-Stop Signature Schemes 
Sub Title (in English)  
Keyword(1) Digital Signature Schemes  
Keyword(2) Fail-Stop Signature Schemes  
Keyword(3) Information Theoretic Security  
Keyword(4) Unforgeability  
Keyword(5) Indistinguishability  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masahiro Nomura  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Katsuhiro Nakamura  
2nd Author's Affiliation Chiba University (Chiba Univ.)
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Speaker Author-1 
Date Time 2014-03-11 11:00:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # IT2013-79, ISEC2013-108, WBS2013-68 
Volume (vol) vol.113 
Number (no) no.483(IT), no.484(ISEC), no.485(WBS) 
Page pp.155-161 
#Pages 7 
Date of Issue 2014-03-03 (IT, ISEC, WBS) 

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