Improved image encryption algorithm based on bit-plane
Xu Cha · Jisuanji gongcheng yu sheji · 2014
On the basis of the analysis of the existing image encryption algorithm,an improved image encryption algorithm based on bit-plane is proposed.After using the bit-level permutation scheme on the original image,a scrambling algorithm on each bit plane is proposed,the improvement of this algorithm is not only using diffusion in the scrambling process,but also giving the each point on the bit plane ranking method respectively after diffusion,meanwhile,the right of choosing ranking method is given to chaotic sequence.Results of various types of analysis prove that this method has a large key space and good key sensitivity,and it has ability to resist the shear attack.