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Paper Abstract and Keywords
Presentation 2008-02-29 14:15
A proposal of modified multi ring signature
Mitsuaki Ikeda, Yutaka Kawai, Kazuo Ohta (UEC) IT2007-58 ISEC2007-155 WBS2007-89
Abstract (in Japanese) (See Japanese page) 
(in English) The $k$-out-of-$n$ signature is a signature scheme where $k$ real signers
among $n$ signers corporate in signature generation.

Verifiers can check that $k$ real signers have generated the signature,
while they can certify the anonimity of $k$ signers, that is, it is
hidden who have generated the signature.
%Therefore, $k$-out-of-$n$ signature have the property of anonimity to
the signers.

Multi-ring signature is one of the $k$-out-of-$n$ signature constructions.

In this paper, we show that several multi-ring signature schemes do not
satisfy the unforgeability by giving a concrete attack procedure.

Moreover, we point out any adversary of the forgery of the signature
could implement in two types of behavior,
and we propose a multi-ring signature which can be proven secure against
adversary of two types.

The proposed scheme can be shown to be secure for each type of adversary,
by substituting the instance of DLP in the proper parameter which is
introduce in our scheme depending on the signed message and the value of
rings,
corresponding to each type of adversary.
Keyword (in Japanese) (See Japanese page) 
(in English) $k$-out-of-$n$ signature / multi ring signature / anonimity / unforgeability / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 501, ISEC2007-155, pp. 65-71, Feb. 2008.
Paper # ISEC2007-155 
Date of Issue 2008-02-22 (IT, ISEC, WBS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 IT2007-58 ISEC2007-155 WBS2007-89

Conference Information
Committee ISEC IT WBS  
Conference Date 2008-02-28 - 2008-02-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ISEC 
Conference Code 2008-02-ISEC-IT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A proposal of modified multi ring signature 
Sub Title (in English)  
Keyword(1) $k$-out-of-$n$ signature  
Keyword(2) multi ring signature  
Keyword(3) anonimity  
Keyword(4) unforgeability  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Mitsuaki Ikeda  
1st Author's Affiliation The University of Electro-CommunicationsJapan (UEC)
2nd Author's Name Yutaka Kawai  
2nd Author's Affiliation The University of Electro-CommunicationsJapan (UEC)
3rd Author's Name Kazuo Ohta  
3rd Author's Affiliation The University of Electro-CommunicationsJapan (UEC)
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Speaker Author-1 
Date Time 2008-02-29 14:15:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # IT2007-58, ISEC2007-155, WBS2007-89 
Volume (vol) vol.107 
Number (no) no.499(IT), no.501(ISEC), no.503(WBS) 
Page pp.65-71 
#Pages
Date of Issue 2008-02-22 (IT, ISEC, WBS) 


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