IMAGE ENCRYPTION BY USING 3D LOGISTIC CHAOTIC MAP: A STATE OF THE ART REVIEW

Abstract

This paper proposes a new method of digital colour picture lossless encryption and decryption using 2D discrete Haar wavelet transform (DHWT) and 3D chaotic logistic plot. The proposed cryptosystem provides digital image protection by means of a cryptographic algorithm in the image frequency domain. For the decomposition of the image, the proposed method uses two levels of 2D DHWT. 2D DHWT is applied to the various colour components of the colour image for encryption, and then the encryption method is applied to the different sub-bands of each decomposition step, and the reverse encryption procedure is used for decryption with the inverse of the functions used in encryption. In order to verify the feasibility and robustness of the system, experimental results and security analysis such as brute force analysis, statistical analysis, occlusion and differential attack of the proposed method are presented.