A Fast Chaos-Based Symmetric Image Cipher with a Novel Bit-Level Permutation Strategy

摘要：

　　This paper presents a fast chaos-based confusion-diffusion type image cipher which introduces a diffusion mechanism in the confusion stage through a novel bit-level permutation.As the pixel value mixing effect is contributed by both stages, the workload of the time-consuming diffusion stage is reduced, and hence the performance of the cryptosystem is improved.Compared with those recently proposed bit-level permutation algorithms, the diffusion effect of the proposed scheme is significantly enhanced as the bits are shuffled among dif ferent bitplanes rather than within the same bitplane.Moreover, the pseudoran dom locations for bits permutation are produced in a parallel manner, which further increase the performance.Lorenz system is employed as generation of keystream for diffusion.Extensive cryptanalysis has been performed on the proposed scheme, and the results demonstrate that the proposed scheme has a satisfactory security level with a low computational complexity, which renders it a good candidate for real-time secure image transmission applications.

关键词： Image cipher bit-level permutation logistic map Lorenz system parallel iteration

作者: Chong Fu Tao Wang Zhao-yu Meng Jun-xin Chen Hong-feng Ma

作者单位: School of Information Science and Engineering,Northeastern University,Shenyang 110004,China Software College,Northeastern University,Shenyang 110004,China TeraRecon,4000 East 3rd Avenue,Suite 200,Foster City,CA 94404,United States

会议类型: 国际会议

会议名称: The 5th International Symposium on Cyberspace Safety and Security ( CSS2013)(第五届国际网络空间安全和安保研讨会)

会议地点: 张家界

会议语种:英文

页码: 52-66

在线出版日期: 2013-11-13（万方平台首次上网日期，不代表论文的发表时间）