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Paper Abstract and Keywords
Presentation 2007-05-18 16:15
Shortened and concatenated collusion-secure codes for digital fingerprinting
Hideki Yagi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) IT2007-6
Abstract (in Japanese) (See Japanese page) 
(in English) Digital fingerprinting, which is employed in contents distribution systems to deter illegal use of digital contents, is considered.
For digital fingerprinting, measures against collusion attacks, where several fingerprinted copies of the same content are mixed to disturb their fingerprints, should be taken. In this paper, we propose a shortening method of collusion-secure fingerprinting codes based on finite geometries, which reduces the code length with keeping the number of codewords and the codes' resilience. We also propose a concatenated coding method which combines a conventional collusion-secure fingerprinting code and an error correcting code for increasing the coding rate. Due to the new fingerprinting codes, the system can deal with a larger number of users to distribute a digital content.
Keyword (in Japanese) (See Japanese page) 
(in English) digital fingerprinting / collusion-secure codes / finite geometry / shortening method / concatenated code / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 42, IT2007-6, pp. 31-36, May 2007.
Paper # IT2007-6 
Date of Issue 2007-05-11 (IT) 
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 IT2007-6

Conference Information
Committee IT  
Conference Date 2007-05-18 - 2007-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Denkoku-No-Mori (Yonezawa) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) general 
Paper Information
Registration To IT 
Conference Code 2007-05-IT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Shortened and concatenated collusion-secure codes for digital fingerprinting 
Sub Title (in English)  
Keyword(1) digital fingerprinting  
Keyword(2) collusion-secure codes  
Keyword(3) finite geometry  
Keyword(4) shortening method  
Keyword(5) concatenated code  
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1st Author's Name Hideki Yagi  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Toshiyasu Matsushima  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Shigeichi Hirasawa  
3rd Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2007-05-18 16:15:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2007-6 
Volume (vol) vol.107 
Number (no) no.42 
Page pp.31-36 
#Pages 6 
Date of Issue 2007-05-11 (IT) 

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