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Paper Abstract and Keywords
Presentation 2017-09-04 13:00
Image Manipulation Analysis on Social Networking Service for Encryption-then-Compression Systems
Tatsuya Chuman, Kenta Iida, Hitoshi Kiya (Tokyo Metro. Univ.) LOIS2017-13 IE2017-34 EMM2017-42
Abstract (in Japanese) (See Japanese page) 
(in English) Encryption-then-Compression (EtC) systems have been proposed to securely transmit images through an untrusted channel provider. It is known that social media like Twitter and Facebook manipulate images uploaded by users. In this paper, we investigate how each social networking service (SNS) provider manipulates images in terms of recompression and resizing. Then, the application of EtC systems to social media is discussed based on the investigation. Moreover, block scrambling-based encryption schemes used in the EtC systems are evaluated in terms of the robustness against image manipulation on social media. In the experiment, the EtC systems are applicable to almost all SNS providers with some requirements.
Keyword (in Japanese) (See Japanese page) 
(in English) Image encryption / EtC system / JPEG standard / Social Networking Service / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 201, EMM2017-42, pp. 1-6, Sept. 2017.
Paper # EMM2017-42 
Date of Issue 2017-08-28 (LOIS, IE, EMM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 LOIS2017-13 IE2017-34 EMM2017-42

Conference Information
Conference Date 2017-09-04 - 2017-09-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. (Clock Tower Centennial Hall) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Multimedia Communication/System, Lifelog Applications, IP Broadcasting/Video Transmission, Media Security, etc. 
Paper Information
Registration To EMM 
Conference Code 2017-09-EMM-IE-LOIS-CMN-ME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Image Manipulation Analysis on Social Networking Service for Encryption-then-Compression Systems 
Sub Title (in English)  
Keyword(1) Image encryption  
Keyword(2) EtC system  
Keyword(3) JPEG standard  
Keyword(4) Social Networking Service  
1st Author's Name Tatsuya Chuman  
1st Author's Affiliation Tokyo Metropolitan University (Tokyo Metro. Univ.)
2nd Author's Name Kenta Iida  
2nd Author's Affiliation Tokyo Metropolitan University (Tokyo Metro. Univ.)
3rd Author's Name Hitoshi Kiya  
3rd Author's Affiliation Tokyo Metropolitan University (Tokyo Metro. Univ.)
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Speaker Author-1 
Date Time 2017-09-04 13:00:00 
Presentation Time 25 minutes 
Registration for EMM 
Paper # LOIS2017-13, IE2017-34, EMM2017-42 
Volume (vol) vol.117 
Number (no) no.199(LOIS), no.200(IE), no.201(EMM) 
Page pp.1-6 
Date of Issue 2017-08-28 (LOIS, IE, EMM) 

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