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Paper Abstract and Keywords
Presentation 2017-05-12 17:00
[Invited Talk] How to Obtain Fully Structure-Preserving (Automorphic) Signatures from Structure-Preserving Ones
Yuyu Wang (Tokyo Tech/AIST), Zongyang Zhang (Beihang University), Takahiro Matsuda, Goichiro Hanaoka (AIST), Keisuke Tanaka (Tokyo Tech) ISEC2017-12
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we bridge the gap between structure-preserving signatures (SPSs) and fully structure-preserving signatures (FSPSs). In SPSs, all the messages, signatures, and verification keys consist only of group elements, while in FSPSs, even signing keys are required to be a collection of group elements. To achieve our goal, we introduce two new primitives called trapdoor signature and signature with auxiliary key, both of which can be derived from SPSs. By carefully combining both primitives, we obtain generic constructions of FSPSs from SPSs. Upon instantiating the above two primitives, we get many instantiations of FSPS with unilateral and bilateral message spaces. Different from previously proposed FSPSs, many of our instantiations also have the automorphic property, i.e., a signer can sign his own verification key. As by-product results, one of our instantiations has the shortest verification key size, signature size, and lowest verification cost among all previous constructions based on standard assumptions, and one of them is the first FSPS scheme in the type I bilinear group.
Keyword (in Japanese) (See Japanese page) 
(in English) signature / trapdoor signature / fully structure-preserving / automorphic / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 25, ISEC2017-12, pp. 63-63, May 2017.
Paper # ISEC2017-12 
Date of Issue 2017-05-05 (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 ISEC2017-12

Conference Information
Committee ISEC  
Conference Date 2017-05-12 - 2017-05-12 
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 2017-05-ISEC 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) How to Obtain Fully Structure-Preserving (Automorphic) Signatures from Structure-Preserving Ones 
Sub Title (in English)  
Keyword(1) signature  
Keyword(2) trapdoor signature  
Keyword(3) fully structure-preserving  
Keyword(4) automorphic  
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1st Author's Name Yuyu Wang  
1st Author's Affiliation Tokyo Institute of Technology/National Institute of Advanced Industrial Science and Technology (Tokyo Tech/AIST)
2nd Author's Name Zongyang Zhang  
2nd Author's Affiliation Beihang University (Beihang University)
3rd Author's Name Takahiro Matsuda  
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
4th Author's Name Goichiro Hanaoka  
4th Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
5th Author's Name Keisuke Tanaka  
5th Author's Affiliation Tokyo Institute of Technology/AIST (Tokyo Tech)
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Speaker Author-1 
Date Time 2017-05-12 17:00:00 
Presentation Time 30 minutes 
Registration for ISEC 
Paper # ISEC2017-12 
Volume (vol) vol.117 
Number (no) no.25 
Page p.63 
#Pages 1 
Date of Issue 2017-05-05 (ISEC) 

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