Chaotic System Image Encryption Algorithm Base RSA

Aiming at the limitation of one-dimensional Chebyshev chaotic map, an improved two-dimensional Chebyshev chaotic map is proposed. This map makes its structure more complex by extending the original one-dimensional map to a high-dimensional map and adding system parameters. Then, the introduction of the sine function further increases the computational complexity of the mapping. Aiming at the periodic shortcoming of traditional Arnold scrambling, the non-linear improvement of its scrambling equation is carried out to make it have better scrambling characteristics. Based on the improved Chebyshev map and the improved Arnold scrambling equation, a digital image encryption algorithm is proposed. Experimental results show that the proposed encryption algorithm can effectively resist plaintext attack, differential attack, statistical analysis and other attacks.