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| Presentation | 2015-05-15 16:35 [Invited Talk] Black-Box Separations for One-More (Static) Problems and Its Generalization Jiang Zhang, Zhenfeng Zhang, Yu Chen, Yanfei Guo (CAS), Zongyang Zhang (AIST)  ISEC2015-7 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We will present our ASIACRYPT 2014 paper about the hardness of one-more problems. As previous works only deal with one-more problems whose solution can be efficiently checked, the relation between the hardness of the one-more (static) CDH problem over non-bilinear groups and other hard problems is still unclear. In this work, we give the first impossibility results showing that black-box reductions cannot be used to base the hardness of the one-more (static) CDH problem (over groups where the DDH problem is still hard) on any standard hardness assumption. Furthermore, we also extend the impossibility results to a class of generalized “one-more” problems, which not only subsume/strengthen many existing separations for traditional one-more problems, but also give new separations for many other interesting “one-more” problems. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Black-box separation / meta-reduction / trapdoor test / one-more (static) CDH problem / generalized ``one-more'' problem / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 28, ISEC2015-7, pp. 41-41, May 2015. | |
| Paper # | ISEC2015-7 | |
| Date of Issue | 2015-05-08 (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 | ISEC2015-7 |
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| Conference Information | |
| Committee | ISEC |
| Conference Date | 2015-05-15 - 2015-05-15 |
| 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 | 2015-05-ISEC |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Black-Box Separations for One-More (Static) Problems and Its Generalization |
| Sub Title (in English) | |
| Keyword(1) | Black-box separation |
| Keyword(2) | meta-reduction |
| Keyword(3) | trapdoor test |
| Keyword(4) | one-more (static) CDH problem |
| Keyword(5) | generalized ``one-more'' problem |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Jiang Zhang |
| 1st Author's Affiliation | Chinese Academy of Sciences (CAS) |
| 2nd Author's Name | Zhenfeng Zhang |
| 2nd Author's Affiliation | Chinese Academy of Sciences (CAS) |
| 3rd Author's Name | Yu Chen |
| 3rd Author's Affiliation | Chinese Academy of Sciences (CAS) |
| 4th Author's Name | Yanfei Guo |
| 4th Author's Affiliation | Chinese Academy of Sciences (CAS) |
| 5th Author's Name | Zongyang Zhang |
| 5th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
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| Speaker | Author-5 |
| Date Time | 2015-05-15 16:35:00 |
| Presentation Time | 30 minutes |
| Registration for | ISEC |
| Paper # | ISEC2015-7 |
| Volume (vol) | vol.115 |
| Number (no) | no.28 |
| Page | p.41 |
| #Pages | 1 |
| Date of Issue | 2015-05-08 (ISEC) |
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