期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2019
卷号：67
期号：3
页码：53-64
DOI：10.14445/22312803/IJCTT-V67I3P111
出版社：Seventh Sense Research Group
摘要：A novel color chaosbased image encryption scheme with permutationdiffusion mechanism is proposed. The permutation operation adopts halfpixellevel interchange permutation strategy between different R, G, B color channels to replace the traditional confusion operations. The pixel swapping between the higher 4bit plane and the lower 4bit plane of the R, G, B channels not only improves the conventional permutation efficiency within the entire plainimage, but also changes all the pixel values of R, G, B components. To enhance the security, multimodal skew map is applied to yield pseudorandom gray value sequence in the diffusion operations. Simulations have been carried out and the results confirm the superior security of the proposed image encryption scheme.
