Bit image encryption algorithm based on hyper chaos and DNA sequence

An image encryption algorithm based on hyper-chaos system and DNA plane is proposed. According to the characteristic that DNA located in high positions carries more than 94% information of image while DNA located in low positions carries less than 6% information, DNA plane is proposed. The corresponding positions of the DNA plane matrixes are rearranged by the described arrangement method to improve the performance of resisting noise attack. Simulation results show that the ability of resisting noise attack in balance sufficient plaintext sensitivity is improved for the presented bit image encryption algorithm and the described bit image encryption algorithm can resist the existing attacks. © 2018 Computer Society of the Republic of China. All rights reserved.