Color image encryption algorithm based on hyperchaotic system and improved quantum revolving gate

Because quantum computing can break encryption systems based on mathematical models, this paper proposes a new color quantum image encryption algorithm based on hyperchaotic system and quantum revolving gate. First, the classic image is diffused, the matrix generated by the four-wing chaotic system is serialized, and XORed with the key and plaintext to obtain the semi-ciphertext image. Then, the quantum rotation method is used to perform scrambling operations on images quantized using the improved novelty enhanced quantum representation (NEQR) model. The angle of rotation is determined by the sequence generated by the piecewise chaotic map. Finally, the experimental results and performance analysis prove that the algorithm has high security performance.