Abstract:
In order to process the image with for high correlation, high redundancy and enormous data, a new image encryption method has been devised based on true random number and pseudo random number. At first, initial conditions of row scrambling and column scrambling are calculated. Two-dimensional Logistic map is applied to generate chaotic sequences. Extended XOR is executed to enhance system security. Then, row scrambling and column scrambling are performed to improve system security. Finally, image diffusion is applied and encryption image is obtained. Experiment results and theoretical analysis prove that the proposed method is effective and can resist many kinds of attacks.
