A Chaotic Algorithm of Image Encryption Based on Dispersion Sampling
Through the analysis of relationship between chaotic characteristics and cryptology, putting forward a chaotic algorithm of image encryption with double keys. Using the discrete Logistic map to produce the chaotic sequence, the original value of the sequence is regarded as the secret key. Then using the discrete Logistic map to produce the corresponding scrambling sequence, in order to utilize it to carry out the gray scrambling and location scrambling on the pixels that getting discretely from the image, so as to realize the image encryption. Finally using Matlab to actualize the simulation experiment, and the result indicates that this algorithm has widest secret keys space, and the ability of resisting statistic attack.
Chaotic sequence dispersion sampling image encryption Logistic map
Ren Honge Shang Zhenwei Wang Yuanzhi Zhang Jian
Information and Computer Engineering College,Northeast Forestry University,Harbin,150040,China Computer Department of Anqing Normal College,Anqing 246011,China
国际会议
西安
英文
2007-08-16（万方平台首次上网日期，不代表论文的发表时间）