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| Presentation | 2007-07-20 13:25 A Construction Method of Nonlinear Piece In Hand Matrix for Universally Enhancing the Security of Various Multivariate Public Key Cryptosystems Shigeo Tsujii (iisec), Kohtaro Tadaki (Chuo Univ.), Ryou Fujita (iisec)  ISEC2007-56 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Considering invulnerability for a quantum computer, many multivariate public key cryptosystems have been proposed in Japan and abroad. As a universal method for enhancing the security of them, authors have proposed piece in hand matrix method. For piece in hand matrix, we could have two types of matrices: linear and nonlinear. We have already proposed on both cases. However, in the case of the nonlinear matrix, the degree of public key polynomials becomes three, which makes the key length longer. This time, we devised a nonlinear piece in hand matrix, where the degree of public key polynomials is kept two. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | public key cryptosystem / multivariate polynomial / multivariate public key cryptosystem / piece in hand concept / nonlinear matrix / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 141, ISEC2007-56, pp. 75-80, July 2007. | |
| Paper # | ISEC2007-56 | |
| 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 | ISEC2007-56 |
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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) | A Construction Method of Nonlinear Piece In Hand Matrix for Universally Enhancing the Security of Various Multivariate Public Key Cryptosystems |
| Sub Title (in English) | |
| Keyword(1) | public key cryptosystem |
| Keyword(2) | multivariate polynomial |
| Keyword(3) | multivariate public key cryptosystem |
| Keyword(4) | piece in hand concept |
| Keyword(5) | nonlinear matrix |
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| 1st Author's Name | Shigeo Tsujii |
| 1st Author's Affiliation | Institute of Information Security (iisec) |
| 2nd Author's Name | Kohtaro Tadaki |
| 2nd Author's Affiliation | Chuo University (Chuo Univ.) |
| 3rd Author's Name | Ryou Fujita |
| 3rd Author's Affiliation | Institute of Information Security (iisec) |
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| Speaker | Author-1 |
| Date Time | 2007-07-20 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | ISEC |
| Paper # | ISEC2007-56 |
| Volume (vol) | vol.107 |
| Number (no) | no.141 |
| Page | pp.75-80 |
| #Pages | 6 |
| Date of Issue | 2007-07-13 (ISEC) |
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