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Color image encryption algorithm based on chaotic map
Author(s): ZHENG Ji-ming, GAO Wen-zheng
Pages: 2934-
2937
Year: 2011
Issue:
9
Journal: Computer Engineering and Design
Abstract: 提出了一种新的基于Lorenz混沌系统的彩色图像加密算法.对Lorenz系统输出的实值混沌序列进行改进,使之近似均匀分布,得到更适合图像加密的伪随机序列.利用改进后的序列生成置乱和变换矩阵,按规则分块对彩色图像三基色分量进行置乱和按位异或等加密运算.仿真实验和安全性分析的结果表明,该算法密钥空间大,具有较好的加密效果和加密效率,且具有较好的抗干扰性.
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