Encryption, authentication and copyright protection techniques for digital images

For the past several years, a lot of research work has been underway to devise security techniques to protect multimedia data like audio, image and video. A question that arises is why new techniques for multimedia security are required when the field of cryptography is already well matured? There a...

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Main Author: Fawad, Ahmed
Other Authors: Mohammed Yakoob Siyal
Format: Theses and Dissertations
Language:English
Published: 2011
Subjects:
Online Access:https://hdl.handle.net/10356/46246
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-462462023-07-04T16:15:50Z Encryption, authentication and copyright protection techniques for digital images Fawad, Ahmed Mohammed Yakoob Siyal School of Electrical and Electronic Engineering DRNTU::Engineering::Computer science and engineering::Data::Data encryption For the past several years, a lot of research work has been underway to devise security techniques to protect multimedia data like audio, image and video. A question that arises is why new techniques for multimedia security are required when the field of cryptography is already well matured? There are several reasons that actually impede the direct use of cryptographic techniques for solving multimedia security problems. For example, an image encrypted using the AES algorithm cannot be correctly decrypted if it undergoes JPEG lossy compression. In multimedia scenarios, content preserving operations like lossy compression, enhancement, transcoding, etc are very common. Applying standard cryptographic techniques directly to the entire multimedia data stream will have problems because a single bit error in the transmitted data stream will cause errors in the data recovery stage. Hence there is a need to devise security algorithms that are focused specifically towards multimedia environment keeping in view its very intrinsic nature. DOCTOR OF PHILOSOPHY (EEE) 2011-07-08T04:42:55Z 2011-07-08T04:42:55Z 2010 2010 Thesis Fawad, A. (2010). Encryption, authentication and copyright protection techniques for digital images. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/46246 10.32657/10356/46246 en 200 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Computer science and engineering::Data::Data encryption
spellingShingle DRNTU::Engineering::Computer science and engineering::Data::Data encryption
Fawad, Ahmed
Encryption, authentication and copyright protection techniques for digital images
description For the past several years, a lot of research work has been underway to devise security techniques to protect multimedia data like audio, image and video. A question that arises is why new techniques for multimedia security are required when the field of cryptography is already well matured? There are several reasons that actually impede the direct use of cryptographic techniques for solving multimedia security problems. For example, an image encrypted using the AES algorithm cannot be correctly decrypted if it undergoes JPEG lossy compression. In multimedia scenarios, content preserving operations like lossy compression, enhancement, transcoding, etc are very common. Applying standard cryptographic techniques directly to the entire multimedia data stream will have problems because a single bit error in the transmitted data stream will cause errors in the data recovery stage. Hence there is a need to devise security algorithms that are focused specifically towards multimedia environment keeping in view its very intrinsic nature.
author2 Mohammed Yakoob Siyal
author_facet Mohammed Yakoob Siyal
Fawad, Ahmed
format Theses and Dissertations
author Fawad, Ahmed
author_sort Fawad, Ahmed
title Encryption, authentication and copyright protection techniques for digital images
title_short Encryption, authentication and copyright protection techniques for digital images
title_full Encryption, authentication and copyright protection techniques for digital images
title_fullStr Encryption, authentication and copyright protection techniques for digital images
title_full_unstemmed Encryption, authentication and copyright protection techniques for digital images
title_sort encryption, authentication and copyright protection techniques for digital images
publishDate 2011
url https://hdl.handle.net/10356/46246
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