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| 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 |
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| 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 |
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| 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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