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2008

Cryptanalysis of an Image Scrambling Scheme Without Bandwidth Expansion

11 years 9 months ago
Cryptanalysis of an Image Scrambling Scheme Without Bandwidth Expansion
Recently, a novel image scrambling (i.e., encryption) scheme without bandwidth expansion was proposed based on two-dimensional (2-D) discrete prolate spheroidal sequences (DPSS). This paper gives a comprehensive cryptanalysis of the image scrambling scheme, and draw a conclusion that it is not sufficiently secure against various cryptographical attacks, including ciphertext-only attack, known/chosen-plaintext attack and chosen-ciphertext attack. The cryptanalytic results suggest that the image scrambling scheme can only be used to realize perceptual encryption, instead of provide content protection for digital images.
Shujun Li, Chengqing Li, Kwok-Tung Lo, Guanrong Ch
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where TCSV
Authors Shujun Li, Chengqing Li, Kwok-Tung Lo, Guanrong Chen
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