Paper Abstract and Keywords |
Presentation |
2011-03-04 09:50
Higher Order Differential Attack on HyRAL Naoki Shibayama, Yasutaka Igarashi, Toshinobu Kaneko, Seiichiro Hangai (Tokyo Univ. of Science) IT2010-119 ISEC2010-123 WBS2010-98 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we focuse on the higher order differential attack on block cipher HyRAL that was proposed by Hirata in 2010.
This paper shows the 7-round synchronous higher order differential characteristics of HyRAL and estimates the costs of the attack using them.
For the case of a 128-bit key, it is possible to apply the higher order differential attack to 10-round HyRAL.
We need $2^{11.8}$ blocks of chosen plaintext and $2^{110}$ times of data encryption.
For the case of 192/256-bit key, it is also possible to apply the attack to 11-round and 12-round HyRAL, respectively.
We need $2^{12.5}$, $2^{12.9}$ blocks of chosen plaintext and $2^{174}$, $2^{238}$ times of data encryption, respectively. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
HyRAL / Block Cipher / Synchronous Higher Order Differential Characteristics / Cryptanalysis / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 443, ISEC2010-123, pp. 341-347, March 2011. |
Paper # |
ISEC2010-123 |
Date of Issue |
2011-02-24 (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) |
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IT2010-119 ISEC2010-123 WBS2010-98 |
Conference Information |
Committee |
ISEC IT WBS |
Conference Date |
2011-03-03 - 2011-03-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Osaka University |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
ISEC |
Conference Code |
2011-03-ISEC-IT-WBS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Higher Order Differential Attack on HyRAL |
Sub Title (in English) |
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Keyword(1) |
HyRAL |
Keyword(2) |
Block Cipher |
Keyword(3) |
Synchronous Higher Order Differential Characteristics |
Keyword(4) |
Cryptanalysis |
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1st Author's Name |
Naoki Shibayama |
1st Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
2nd Author's Name |
Yasutaka Igarashi |
2nd Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
3rd Author's Name |
Toshinobu Kaneko |
3rd Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
4th Author's Name |
Seiichiro Hangai |
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Tokyo University of Science (Tokyo Univ. of Science) |
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Speaker |
Author-1 |
Date Time |
2011-03-04 09:50:00 |
Presentation Time |
25 minutes |
Registration for |
ISEC |
Paper # |
IT2010-119, ISEC2010-123, WBS2010-98 |
Volume (vol) |
vol.110 |
Number (no) |
no.442(IT), no.443(ISEC), no.444(WBS) |
Page |
pp.341-347 |
#Pages |
7 |
Date of Issue |
2011-02-24 (IT, ISEC, WBS) |
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