ON ENCRYPTION AND AUTHENTICATION OF THE DC DCT COEFFICIENT

Li Weng; Bart Preneel

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Paper

ON ENCRYPTION AND AUTHENTICATION OF THE DC DCT COEFFICIENT

Topics: Audio and Video Quality Assessment; Authentication and Watermarking

In Proceedings of the Second International Conference on Signal Processing and Multimedia Applications - Volume 0ICETE, 365-369, 2007 , Barcelona, Spain

Authors: Li Weng and Bart Preneel

Affiliation: Katholieke Universiteit Leuven, Belgium

Keyword(s): Encryption, Authentication, DC coefficient, DCT.

Related Ontology Subjects/Areas/Topics: Audio and Video Quality Assessment ; Authentication and Watermarking ; Multimedia ; Multimedia Systems and Applications ; Telecommunications

Abstract: When encryption and authentication techniques are applied to image or video data, sometimes it is advantageous to limit the operation to the DC DCT coefficient of each 8 × 8 block in a picture. In this work, the performance of such an approach is evaluated. This problem is considered as an image quality problem, and the metric structural similarity is used to show that by authenticating the DC coefficient, about 60% of the information can be guaranteed; by encrypting the DC coefficient, about 80% of the information can be hindered.

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Paper citation in several formats:

Weng, L. and Preneel, B. (2007). ON ENCRYPTION AND AUTHENTICATION OF THE DC DCT COEFFICIENT. In Proceedings of the Second International Conference on Signal Processing and Multimedia Applications (ICETE 2007) - SIGMAP; ISBN 978-989-8111-13-5, SciTePress, pages 365-369. DOI: 10.5220/0002137503650369

@conference{sigmap07,
author={Li Weng. and Bart Preneel.},
title={ON ENCRYPTION AND AUTHENTICATION OF THE DC DCT COEFFICIENT},
booktitle={Proceedings of the Second International Conference on Signal Processing and Multimedia Applications (ICETE 2007) - SIGMAP},
year={2007},
pages={365-369},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002137503650369},
isbn={978-989-8111-13-5},
}

TY - CONF

JO - Proceedings of the Second International Conference on Signal Processing and Multimedia Applications (ICETE 2007) - SIGMAP
TI - ON ENCRYPTION AND AUTHENTICATION OF THE DC DCT COEFFICIENT
SN - 978-989-8111-13-5
AU - Weng, L.
AU - Preneel, B.
PY - 2007
SP - 365
EP - 369
DO - 10.5220/0002137503650369
PB - SciTePress