[01] Yong Zhang, School of Software and Communication Engineering, Jiangxi University of Finance and Economics, Nanchang, P. R. China.

Recently, an image encryption scheme based on rotation matrix bit-level permutation and block diffusion was proposed [Y Zhang, D Xiao. Commun Nonlinear Sci Numer Simulat. 2014, 19:74-82]. In this paper, this image encryption scheme was studied in detail and its defects of low encryption speed and weak security were pointed out. This scheme with one round was crypt-analyzed successfully with the chosen plaintext method. The simulation results show that their scheme cannot be used in practical communications.

Chaotic System, Chosen Plaintext Attack, Cryptanalysis, Image Encryption

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