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| Presentation | 2012-03-01 15:45 New Saturation Characteristics of HyRAL Naoki Shibayama, Toshinobu Kaneko, Seiichiro Hangai (Tokyo Univ. of Science)  IT2011-54 ISEC2011-81 WBS2011-55 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | HyRAL is the 128-bit block cipher proposed by Hirata in 2010. It has been shown that 13-round with 256-bit secret key is attackable by saturation attack using 9-round 64-th order differential characteristic. This paper shows a new 10-round saturation characteristic of HyRAL using 64-th order differential. The characteristic is a extension of 8-round synchronous 32-nd order differential characteristic from 3-rd round to 10-th round of HyRAL. We show the reason of this characteristics by ($m$, $n$)-model's property, and estimates the costs of attack using them. For the case of a 256-bit secret key, it is possible to apply the saturation attack to 14-round HyRAL. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Block Cipher / HyRAL / Saturation Characteristics / Cryptanalysis / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 455, ISEC2011-81, pp. 53-60, March 2012. | |
| Paper # | ISEC2011-81 | |
| Date of Issue | 2012-02-23 (IT, ISEC, WBS) | |
| 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 | IT2011-54 ISEC2011-81 WBS2011-55 |
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| Conference Information | |
| Committee | IT ISEC WBS |
| Conference Date | 2012-03-01 - 2012-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ISEC |
| Conference Code | 2012-03-IT-ISEC-WBS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | New Saturation Characteristics of HyRAL |
| Sub Title (in English) | |
| Keyword(1) | Block Cipher |
| Keyword(2) | HyRAL |
| Keyword(3) | Saturation Characteristics |
| Keyword(4) | Cryptanalysis |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Naoki Shibayama |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Toshinobu Kaneko |
| 2nd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 3rd Author's Name | Seiichiro Hangai |
| 3rd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
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| Speaker | Author-1 |
| Date Time | 2012-03-01 15:45:00 |
| Presentation Time | 25 minutes |
| Registration for | ISEC |
| Paper # | IT2011-54, ISEC2011-81, WBS2011-55 |
| Volume (vol) | vol.111 |
| Number (no) | no.454(IT), no.455(ISEC), no.456(WBS) |
| Page | pp.53-60 |
| #Pages | 8 |
| Date of Issue | 2012-02-23 (IT, ISEC, WBS) |
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