Paper Abstract and Keywords |
Presentation |
2017-11-07 13:25
A study of obfuscation for the security enhancement of watermarking schemes Koichiro Yamashita, Minoru Kuribayashi, Nobuo Funabiki (Okayama Univ.) EMM2017-65 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In general, watermark information is embedded into the host signals selected from digital content according to a secret key. However, the selected host signals can be easily classified from given watermarked content if all algorithms except for the secret key are in public. One of the countermeasures was proposed in ICIP2015 that introduced a simple obfuscating operation. The drawback of the method is the redundancy in the entire watermarking process. The scheme introduced three stage of obfuscating operation that multiplied pseudo-random sequences twice and selected host signals randomly from its frequency components. Without the random selection, the secrecy of the host signals drastically decreases. In this study, we analyze the influence of watermark information given by obfuscating operation, and present the measurements whether watermark information is diffused. In addition, we confirm the validity of the measurements by proposing new method and evaluating the performance. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
watermarking / obfuscating operations / security / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 282, EMM2017-65, pp. 53-58, Nov. 2017. |
Paper # |
EMM2017-65 |
Date of Issue |
2017-10-30 (EMM) |
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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EMM2017-65 |
Conference Information |
Committee |
EMM |
Conference Date |
2017-11-06 - 2017-11-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kagoshima Univ. (Inamori Academy) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
Paper Information |
Registration To |
EMM |
Conference Code |
2017-11-EMM |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A study of obfuscation for the security enhancement of watermarking schemes |
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watermarking |
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obfuscating operations |
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security |
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1st Author's Name |
Koichiro Yamashita |
1st Author's Affiliation |
Okayama University (Okayama Univ.) |
2nd Author's Name |
Minoru Kuribayashi |
2nd Author's Affiliation |
Okayama University (Okayama Univ.) |
3rd Author's Name |
Nobuo Funabiki |
3rd Author's Affiliation |
Okayama University (Okayama Univ.) |
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Speaker |
Author-1 |
Date Time |
2017-11-07 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
EMM |
Paper # |
EMM2017-65 |
Volume (vol) |
vol.117 |
Number (no) |
no.282 |
Page |
pp.53-58 |
#Pages |
6 |
Date of Issue |
2017-10-30 (EMM) |
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