Improved Cryptanalysis of CMC Chaotic Image Encryption Scheme

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Jiansheng Guo 1,* Lei Zhang 1

1. Zhengzhou Information Science and Technology Institute, Zhengzhou, China

* Corresponding author.


Received: 6 Sep. 2010 / Revised: 12 Oct. 2010 / Accepted: 11 Nov. 2010 / Published: 8 Dec. 2010

Index Terms

Cryptanalysis, Equivalent key attack algorithm, Image encryption, Chaotic cipher


Recently, chaos has attracted much attention in the field of cryptography. To study the security with a known image of a symmetric image encryption scheme, the attack algorithm of equivalent key is given. We give the known image attacks under different other conditions to obtain the equivalent key. The concrete step and complexity of the attack algorithm is given. So the symmetric image encryption scheme based on 3D chaotic cat maps is not secure.

Cite This Paper

Jiansheng Guo,Lei Zhang, "Improved Cryptanalysis of CMC Chaotic Image Encryption Scheme", IJIGSP, vol.2, no.2, pp.39-45, 2010. DOI: 10.5815/ijigsp.2010.02.06


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