A quantum image encryption-authentication method using quantum Haar wavelet transform and affine transform

The quantum image encryption and authentication algorithm are proposed based on quantum affine transformation and quantum Haar wavelet transform. This algorithm is divided into two main steps: encryption and embedding. During the encryption phase, affine transform and Hénon map are combined to carry out scrambling-diffusion processing on the plaintext image. In the phase of embedding, the color carrier image undergoes decomposition using the quantum Haar wavelet transform. Then the ciphertext image information and identity information are hidden into the wavelet domain of the color carrier image, and the final transmitted image has visual significance. The suggested algorithm significantly minimizes the risk of image data compromise during transmission and realizes the dual security of encryption and authentication. The security and the robustness of the algorithm are analyzed by using the evaluation indexes of image encryption and information hiding. The findings indicate that the introduced algorithm offers superior security compared to alternative methods, ensuring a more dependable and safeguarded transmission of image data.