A novel image encryption scheme based on an improper fractional-order chaotic system

被引：0
作者：
Jianfeng Zhao
Shuying Wang
Yingxiang Chang
Xianfeng Li
机构：
[1] Henan Polytechnic,Department of Information Engineering
[2] Huanghe Science and Technology College,Department of Minzu
[3] Lanzhou Jiaotong University,Department of Mathematics
[4] City University of Hong Kong,Department of Architecture and Civil Engineering
来源：
Nonlinear Dynamics | 2015年 / 80卷
关键词：
Image encryption; Chaos; Improper fractional; Secret key;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the features of digital image encryption and high-dimensional chaotic sequences, the paper proposes a symmetric digital image encryption algorithm by a new improper fractional-order chaotic system. The initial conditions, parameters and fractional orders of chaos are influenced by gray value of all pixels and used as secret key. Therefore, the total key length is large enough to resist any brute-force attacks. The original image is divided into four parts and encrypted by different encryption formulas. Theoretical analysis results show that the proposed encryption scheme has effective encryption and efficiencies.
引用
收藏
页码：1721 / 1729
页数：8
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