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| Presentation | 2016-12-21 09:30 Improvements of Blacklistable Anonymous Credential System Using Accumulator Yuu Aikou, Toru Nakanishi (Hiroshima Univ)  ISEC2016-70 COMP2016-31 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In current ID-based user authentication schemes, privacy issues may occur, since users’ behavior histories are collected in Service Providers (SPs). Although anonymous authentications such as group signatures have been proposed, these schemes rely on a Trusted Third Party (TTP) capable of tracing misbehaving users. Thus,the privacy is not high, because TTP can allways trace users. Therefore, the anonymous authentication using a blacklist without TTP has been proposed. However, since the computation time required for the authentication depends on the size of the whitelist with non-blacklisted session IDs , the authentication time is increased as the whitelist size become bigger. In this paper, we propose a new scheme that reduces authentication time by adapting the accumulator from the whitelist to the blacklist. Then, we show the effectiveness of the proposed scheme by implementing it on a PC. Moreover, we show an extension to reuse the session IDs by reseting the IDs of public information. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Anonymous authentication / Blacklist / Accumulator / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 380, ISEC2016-70, pp. 1-7, Dec. 2016. | |
| Paper # | ISEC2016-70 | |
| Date of Issue | 2016-12-14 (ISEC, COMP) | |
| 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 | ISEC2016-70 COMP2016-31 |
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| Conference Information | |
| Committee | COMP ISEC |
| Conference Date | 2016-12-21 - 2016-12-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ISEC |
| Conference Code | 2016-12-COMP-ISEC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvements of Blacklistable Anonymous Credential System Using Accumulator |
| Sub Title (in English) | |
| Keyword(1) | Anonymous authentication |
| Keyword(2) | Blacklist |
| Keyword(3) | Accumulator |
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| 1st Author's Name | Yuu Aikou |
| 1st Author's Affiliation | Hiroshima University (Hiroshima Univ) |
| 2nd Author's Name | Toru Nakanishi |
| 2nd Author's Affiliation | Hiroshima University (Hiroshima Univ) |
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| Speaker | Author-1 |
| Date Time | 2016-12-21 09:30:00 |
| Presentation Time | 20 minutes |
| Registration for | ISEC |
| Paper # | ISEC2016-70, COMP2016-31 |
| Volume (vol) | vol.116 |
| Number (no) | no.380(ISEC), no.381(COMP) |
| Page | pp.1-7 |
| #Pages | 7 |
| Date of Issue | 2016-12-14 (ISEC, COMP) |
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