Paper Abstract and Keywords |
Presentation |
2015-11-06 16:45
Reducing Authentication Time in Blacklistable Anonymous Credential System Using Accumulator Yuu Aikou, Toru Nakanishi (Hiroshima Univ) ISEC2015-47 SITE2015-34 LOIS2015-41 |
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 number of tickets in the blacklist, the authentication time is increased if lots of users are revoked. In this paper, we propose a new blacklistable anonymous credential scheme using an accumulator which can compress multiple elements and prove the inclusion of sets of elements. Then, we show the effectiveness of the proposed scheme by implementing it on a PC. From the measurement results, we confirm that the proposed scheme can achieve faster authentications than the previous shceme,in proper settings of parameters. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Anonymous authentication / Blacklist / Accumulator / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 293, ISEC2015-47, pp. 75-80, Nov. 2015. |
Paper # |
ISEC2015-47 |
Date of Issue |
2015-10-30 (ISEC, SITE, LOIS) |
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) |
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ISEC2015-47 SITE2015-34 LOIS2015-41 |
Conference Information |
Committee |
LOIS ISEC SITE |
Conference Date |
2015-11-06 - 2015-11-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kanagawa Univ. |
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Paper Information |
Registration To |
ISEC |
Conference Code |
2015-11-LOIS-ISEC-SITE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Reducing Authentication Time in Blacklistable Anonymous Credential System Using Accumulator |
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Anonymous authentication |
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Blacklist |
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Accumulator |
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1st Author's Name |
Yuu Aikou |
1st Author's Affiliation |
Hiroshima University (Hiroshima Univ) |
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Toru Nakanishi |
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Hiroshima University (Hiroshima Univ) |
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Speaker |
Author-1 |
Date Time |
2015-11-06 16:45:00 |
Presentation Time |
25 minutes |
Registration for |
ISEC |
Paper # |
ISEC2015-47, SITE2015-34, LOIS2015-41 |
Volume (vol) |
vol.115 |
Number (no) |
no.293(ISEC), no.294(SITE), no.295(LOIS) |
Page |
pp.75-80 |
#Pages |
6 |
Date of Issue |
2015-10-30 (ISEC, SITE, LOIS) |
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