| Paper Abstract and Keywords |
| Presentation |
2024-01-17 09:55
An encryption method of JPEG bitstreams for partially disclosing visual information Mare Hirose, Shoko Imaizumi (Chiba Univ.), Kiya Hitoshi (Tokyo Metropolitan Univ) EMM2023-85 |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this paper, we propose an encryption method for JPEG codestreams in which the file size is invariant before and after encryption. The restrictions associated with encryption are relaxed from two points of view. The proposed method uses a code called a restart marker that can be inserted at regular intervals between Minimum Coded Units (MCUs). This allows us to define extended blocks separated by restart markers, and to spatially mix encrypted and unencrypted regions. In addition, the positions of these extended blocks can be randomly interchanged. This is expected to improve the resistance against visual information recovery attacks. We confirm the effectiveness of the proposed method through simulations. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
JPEG codestream / partial encryption / restart marker / file-size preserving / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 123, no. 332, EMM2023-85, pp. 26-31, Jan. 2024. |
| Paper # |
EMM2023-85 |
| Date of Issue |
2024-01-09 (EMM) |
| ISSN |
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 |
EMM2023-85 |
| Conference Information |
| Committee |
EMM |
| Conference Date |
2024-01-16 - 2024-01-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tohoku Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Sense of Presence, Universal Media, Digital Entertainment, etc. |
| Paper Information |
| Registration To |
EMM |
| Conference Code |
2024-01-EMM |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
An encryption method of JPEG bitstreams for partially disclosing visual information |
| Sub Title (in English) |
|
| Keyword(1) |
JPEG codestream |
| Keyword(2) |
partial encryption |
| Keyword(3) |
restart marker |
| Keyword(4) |
file-size preserving |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Mare Hirose |
| 1st Author's Affiliation |
Chiba University (Chiba Univ.) |
| 2nd Author's Name |
Shoko Imaizumi |
| 2nd Author's Affiliation |
Chiba University (Chiba Univ.) |
| 3rd Author's Name |
Kiya Hitoshi |
| 3rd Author's Affiliation |
Tokyo Metropolitan University (Tokyo Metropolitan Univ) |
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| Speaker |
Author-1 |
| Date Time |
2024-01-17 09:55:00 |
| Presentation Time |
25 minutes |
| Registration for |
EMM |
| Paper # |
EMM2023-85 |
| Volume (vol) |
vol.123 |
| Number (no) |
no.332 |
| Page |
pp.26-31 |
| #Pages |
6 |
| Date of Issue |
2024-01-09 (EMM) |