Cryptanalysis of an Image Scrambling Scheme Without Bandwidth Expansion

Author

Li, Shujun ; Li, Chengqing ; Lo, Kwok-Tung ; Chen, Guanrong

Author_Institution

FernUniversitat in Hagen, Hagen

Volume

18

Issue

3

fYear

2008

fDate

3/1/2008 12:00:00 AM

Firstpage

338

Lastpage

349

Abstract

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.

Keywords

cryptography; image coding; sequences; bandwidth expansion; chosen-ciphertext attack; ciphertext-only attack; cryptanalysis method; cryptographical attack; digital image content protection; image scrambling scheme; known/chosen-plaintext attack; perceptual encryption; two-dimensional discrete prolate spheroidal sequence; Ciphertext-only attack; Hadamard matrix; chosen- ciphertext attack; chosen-ciphertext attack; chosen-plaintext attack; ciphertext-only attack; cryptanalysis; discrete prolate spheroidal sequence (DPSS); encryption; encryption,cryptanalysis; image scrambling; known-plaintext attack; perceptual encryption;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/TCSVT.2008.918116

Filename

4448993