Paper Abstract and Keywords |
Presentation |
2009-03-03 10:30
An Approach to Reduce Illegal Content Redistributions on P2P Video Sharing System and Its Evaluation Liang Wang, Yoshihiro Kawahara, Tohru Asami (The Univ. of Tokyo) IN2008-149 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
CGM(Consumer Generated Media) based video sharing service are one of the killer applications among the current Internet services.This video sharing services generates a huge amount of traffic compared to conventional web services. Hence P2P technologies are expected to scale up the system without sacrificing the users' browsing experience. This paper presents a method to protect copyright in P2P Video Sharing Service on the following conditions. (1)Very loose authentication is requested to join the network. (2)Users can upload contents by themselves. In order to stop the illegal circulation of the contents, we encrypt contents. When a user accesses to the content, the user is required to obtain an encryption key from P2P network. However, we need to consider the illegal possesion of the keys by the malicious nodes. To solve this problem, we propose a method to prevent illegal decryption of the content with high probability by dividing the encryption key into partial keys through Secret Sharing Schemes and storing them into distributed nodes. The method shows high possibility to present illegal utilization of encryption key after deleting the content. In addition, the simulation shows it can restrain the illegal availability below 0.1% with 10% malicious nodes if we publish 100 divided keys and set the threshold of Secret Sharing Schemes to 21. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
P2P / Video Sharing / Copyright / Secret Sharing Scheme / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 458, IN2008-149, pp. 103-108, March 2009. |
Paper # |
IN2008-149 |
Date of Issue |
2009-02-24 (IN) |
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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IN2008-149 |
Conference Information |
Committee |
IN NS |
Conference Date |
2009-03-03 - 2009-03-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okinawa-Zanpamisaki Royal Hotel |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General issues |
Paper Information |
Registration To |
IN |
Conference Code |
2009-03-IN-NS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
An Approach to Reduce Illegal Content Redistributions on P2P Video Sharing System and Its Evaluation |
Sub Title (in English) |
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Keyword(1) |
P2P |
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Video Sharing |
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Copyright |
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Secret Sharing Scheme |
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1st Author's Name |
Liang Wang |
1st Author's Affiliation |
The University of Tokyo (The Univ. of Tokyo) |
2nd Author's Name |
Yoshihiro Kawahara |
2nd Author's Affiliation |
The University of Tokyo (The Univ. of Tokyo) |
3rd Author's Name |
Tohru Asami |
3rd Author's Affiliation |
The University of Tokyo (The Univ. of Tokyo) |
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Speaker |
Author-1 |
Date Time |
2009-03-03 10:30:00 |
Presentation Time |
20 minutes |
Registration for |
IN |
Paper # |
IN2008-149 |
Volume (vol) |
vol.108 |
Number (no) |
no.458 |
Page |
pp.103-108 |
#Pages |
6 |
Date of Issue |
2009-02-24 (IN) |
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