计算机工程与应用2009，Vol.45Issue(33)：240-244,5.DOI:10.3778/j.issn.1002-8331.2009.33.074
改进的数字化混沌扰动实现和应用
Realizing and application of perturbing digital chaotic systems
摘要
Abstract
This paper presents an approach to realize finite precision chaotic systems via perturbation of chaotic-sequences.After being perturbed,chaotic system can generate chaotic binary sequences with uniform distribution and statistic properties invulnera-ble to cryptographic analysis.The simulation result shows that the perturbing scheme is effective. Encryption matrixes and re-placement matrixes are being generated by using the chaotic mapping via parameter perturbation,and then the gray-scale image is encrypted.Experimental simulation shows that the encryption algorithm has a good effect of encryption.关键词
参数扰动/帐篷映射/有限精度效应/数字化混沌/图像加密Key words
parameter perturbation/tent map/finite precision effect /digital chaotic systems/image encryption分类
信息技术与安全科学引用本文复制引用
程艳云,樊春霞..改进的数字化混沌扰动实现和应用[J].计算机工程与应用,2009,45(33):240-244,5.基金项目
江苏省高校自然科学基础研究项目(No.KJD510150). （No.KJD510150）
