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Lei Zhang

Work place: Zhengzhou Information Science and Technology Institute, Zhengzhou, China

E-mail: zzll2000@163.com

Website:

Research Interests: Image Processing, Image Manipulation, Image Compression, Computer systems and computational processes

Biography

Lei Zhang received the Bachelor Degree from the zhengzhou Information and Technology Institute. His research interests include Image encryption and block cipher cryptanalysis.

Author Articles
Improved Cryptanalysis of CMC Chaotic Image Encryption Scheme

By Jiansheng Guo Lei Zhang

DOI: https://doi.org/10.5815/ijigsp.2010.02.06, Pub. Date: 8 Dec. 2010

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.

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