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Paper Abstract and Keywords
Presentation 2010-05-21 13:25
Side-Channel Analysis and Countermeasures of Stream Cipher K2
Matt Henricksen, Wun-she Yap, Chee-hoo Yian (I2R), Yuto Nakano, Kazuhide Fukushima, Shinsaku Kiyomoto, Toshiaki Tanaka (KDDI Labs.) ISEC2010-2
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper we provide the first side-channel analysis of the K2 stream cipher. We apply timing attacks, power analysis, and differential fault analysis to K2. We show that naively implemented K2 is vulnerable to cache-timing attacks, and describe how to implement efficient countermeasures to protect K2 against side-channel attacks in hardware and software. Proposed side-channel attacks would be not practical on common situations, and threats by the side-channel attacks can be avoided to implement our countermeasures.
Keyword (in Japanese) (See Japanese page) 
(in English) Stream Cipher / K2 / side-channel / SNOW 2.0 / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 44, ISEC2010-2, pp. 5-10, May 2010.
Paper # ISEC2010-2 
Date of Issue 2010-05-14 (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 ISEC2010-2

Conference Information
Committee ISEC  
Conference Date 2010-05-21 - 2010-05-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ISEC 
Conference Code 2010-05-ISEC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Side-Channel Analysis and Countermeasures of Stream Cipher K2 
Sub Title (in English)  
Keyword(1) Stream Cipher  
Keyword(2) K2  
Keyword(3) side-channel  
Keyword(4) SNOW 2.0  
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Keyword(6)  
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1st Author's Name Matt Henricksen  
1st Author's Affiliation Institute for Infocomm Research (I2R)
2nd Author's Name Wun-she Yap  
2nd Author's Affiliation Institute for Infocomm Research (I2R)
3rd Author's Name Chee-hoo Yian  
3rd Author's Affiliation Institute for Infocomm Research (I2R)
4th Author's Name Yuto Nakano  
4th Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
5th Author's Name Kazuhide Fukushima  
5th Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
6th Author's Name Shinsaku Kiyomoto  
6th Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
7th Author's Name Toshiaki Tanaka  
7th Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
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Speaker Author-6 
Date Time 2010-05-21 13:25:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # ISEC2010-2 
Volume (vol) vol.110 
Number (no) no.44 
Page pp.5-10 
#Pages 6 
Date of Issue 2010-05-14 (ISEC) 

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