Improved Cryptanalysis of CMC Chaotic Image Encryption Scheme
Jiansheng Guo, Lei Zhang · International Journal of Image Graphics and Signal Processing · 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.