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
a new image scrambling (i.e., encryp- tion) scheme without bandwidth expansion was proposed based
on two-dimensional (2-D) discrete prolate spheroidal sequences (DPSS). A comprehensive cryptanalysis is given here on this im-age 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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