A New Image Encryption Algorithm Based on Hyperchaotic Mapping
An improved image encryption method, which is based on hyperchaotic sequence, is proposed. Firstly, chaotic sequences based on Rossler hyperchaotic system are generated, and the image is pro-encrypted by replacing pixels in the image with generated sequences; then horizontal rows and vertical rows in the pro-encrypted image are further scrambled with Logistic mapping, in order to improve the security. The effect of encryption and the security are also analyzed with evaluating indicators. Simulation results indicate that the proposed method is more efficient and security performance is higher.
hyperchaotic sequence image encryption rdssler mapping logistic mapping scrambling
Peizhen WANG Huixin GAO Mutian CHENG Xiaosan MA
School of Electrical Engineering & Information, Anhui University of Technology Maanshan, Anhui, China
国际会议
太原
英文
428-432
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）