Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18631
Title: Breaking a modified substitution-diffusion image cipher based on chaotic standard and logistic maps
Authors: Li, C
Li, S
Lo, KT 
Keywords: Chaos
Chosen-plaintext attack
Cryptanalysis
Encryption
Image
Known-plaintext attack
Issue Date: 2011
Publisher: Elsevier Science Bv
Source: Communications in nonlinear science and numerical simulation, 2011, v. 16, no. 2, p. 837-843 How to cite?
Journal: Communications in Nonlinear Science and Numerical Simulation 
Abstract: Recently, an image encryption scheme based on chaotic standard and logistic maps was proposed by Patidar et al. It was later reported by Rhouma et al. that an equivalent secret key can be reconstructed with only one known/chosen-plaintext and the corresponding ciphertext. Patidar et al. soon modified the original scheme and claimed that the modified scheme is secure against Rhouma et al.'s attack. In this paper, we point out that the modified scheme is still insecure against the same known/chosen-plaintext attack. In addition, some other security defects existing in both the original and the modified schemes are also reported.
URI: http://hdl.handle.net/10397/18631
DOI: 10.1016/j.cnsns.2010.05.008
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