Cryptanalysis of an Image Scrambling Scheme without Bandwidth Expansion
Li, SJ, Li, CQ, Lo, KT and Chen, GR (2008) Cryptanalysis of an Image Scrambling Scheme without Bandwidth Expansion IEEE Transactions on Circuits and Systems for Video Technology, 18 (3). 338 - 349. ISSN 1051-8215
IEEETCAS-VT2008.pdf - Accepted Version
Available under License : See the attached licence file.
Recently, a new image scrambling (i.e., encryption) scheme without bandwidth expansion was proposed based on two-dimensional discrete prolate spheroidal sequences. A comprehensive cryptanalysis is given here on this image scrambling scheme, showing that it is not sufficiently secure against various cryptographical attacks including ciphertext-only attack, known/chosen-plaintext attack, and chosen-ciphertext attack. Detailed cryptanalytic results suggest that the image scrambling scheme can only be used to realize perceptual encryption but not to provide content protection for digital images.
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|Uncontrolled Keywords:||ciphertext-only attack, chosen-ciphertext attack, chosen-plaintext attack, cryptanalysis, discrete prolate spheroidal sequence (DPSS), encryption, image scrambling, Hadamard matrix, known-plaintext attack, perceptual encryption, RANDOM-PHASE KEYS, ENCRYPTION SCHEME, PLAINTEXT ATTACK, BINARY IMAGES, SECURITY, VIDEO, DESIGN, COMPRESSION, SYSTEM, MAPS|
|Divisions:||Faculty of Engineering and Physical Sciences > Computing Science|
|Depositing User:||Symplectic Elements|
|Date Deposited:||11 May 2012 13:38|
|Last Modified:||23 Sep 2013 19:26|
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