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| Paper Abstract and Keywords | ||
| Presentation | 2007-07-20 15:20 Efficient Strong Key-Insulated Signature Scheme for Bidirectional Broadcasting Service Go Ohtake (NHK), Goichiro Hanaoka (AIST), Kazuto Ogawa (NHK)  ISEC2007-65 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the bidirectional broadcasting service via networks, provider authentication is necessary for secure transmission of user's personal information. If the broadcaster's signing key is leaked, the third party that gets the signing key can impersonate the broadcaster. We propose a strong key-insulated signature scheme which is based on the signature scheme proposed by Abe and Okamoto. Our scheme is more efficient strong key-insulated signature scheme than ever before, on signature size, key size, and computation cost. We show that our scheme is provably secure under the assumption of the hardness of discrete logarithm problem. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | bidirectional broadcasting service / provider authentication / personal information protection / key leakage / strong key-insulated signature / forking lemma / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 141, ISEC2007-65, pp. 133-139, July 2007. | |
| Paper # | ISEC2007-65 | |
| Date of Issue | 2007-07-13 (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 | ISEC2007-65 |
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| Conference Information | |
| Committee | ISEC SITE IPSJ-CSEC |
| Conference Date | 2007-07-19 - 2007-07-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Future University-Hakodate |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ISEC |
| Conference Code | 2007-07-ISEC-SITE-IPSJ-CSEC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Efficient Strong Key-Insulated Signature Scheme for Bidirectional Broadcasting Service |
| Sub Title (in English) | |
| Keyword(1) | bidirectional broadcasting service |
| Keyword(2) | provider authentication |
| Keyword(3) | personal information protection |
| Keyword(4) | key leakage |
| Keyword(5) | strong key-insulated signature |
| Keyword(6) | forking lemma |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Go Ohtake |
| 1st Author's Affiliation | Japan Broadcasting Corporation (NHK) |
| 2nd Author's Name | Goichiro Hanaoka |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 3rd Author's Name | Kazuto Ogawa |
| 3rd Author's Affiliation | Japan Broadcasting Corporation (NHK) |
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| Speaker | Author-1 |
| Date Time | 2007-07-20 15:20:00 |
| Presentation Time | 25 minutes |
| Registration for | ISEC |
| Paper # | ISEC2007-65 |
| Volume (vol) | vol.107 |
| Number (no) | no.141 |
| Page | pp.133-139 |
| #Pages | 7 |
| Date of Issue | 2007-07-13 (ISEC) |
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