A Color Image Encryption Algorithm Based on Delayed Feedback Logistic Mapping

To overcome the shortcomings of Logistic map, an improved Logistic chaotic map is designed via delayed feedback.Based on the proposed chaotic map, a new image encryption algorithm relative to plain text is proposed. The simulation results show that the encryption algorithm proposed in this paper only needs a round of permutation and diffusion operation to achieve satisfactory encryption effect, and can effectively resist statistical analysis attack, differential attack and selective plain text attack, and exhibits strong robustness.