Bit-Level Image Encryption Algorithm Based on Composite Chaotic Mapping

• DOI: 10.14257/ijsip.2016.9.8.16
• Publication Date: 2016-10-08T06:10:42Z
• Authors: Cai Yang; Haiyu Zhang; Jinliang Guo; Songhao Jia; Fangfang Li
• Keywords: Chaotic map; Bit (key)

Because the single chaotic mapping easily creates security weaknesses in image encryption algorithm, needs to be improved. Aiming at this problem, a bitlevel algorithm based on composite (CCM-IEA) is proposed. First of all, scrambles plain bit level through Cat for first time. And then Henon two dimensional discrete used scramble second Finally, diffusion operated one Logistic mapping, and data sensitivity enhanced. The experimental results show that performance CCM-IEA better histogram, information entropy correlation analysis. Compared with images has ability resist analysis It can seen high safety good effect.