Design of a Symmetric Image Encryption Scheme Based on Composite Chaotic Dynamics Systems
Jiansheng Guo · Computer Engineering and Science · 2009
By analyzing several digital chaotic image encryption algorithms,this paper designs a symmetric image encryption scheme based on composite dispersed chaotic dynamics systems. Based on the characteristics of the chaos,the algorithm uses the initial chaotic sequence generated by the Logistic map and the Chebyshev map,and then the chaotic encryption of images is realized by image incising stretch and folding. The existing analysis methods are not in effect yet which are usually used in analyzing these two chaotic maps,and the algorithm can encrypt quickly. The experimental results show the validity and calculating speed of the algorithms.