A new image encryption algorithm based on hyper-chaos

被引:447
作者
Gao, Tiegang [1 ]
Chen, Zengqiang [2 ]
机构
[1] Nankai Univ, Coll Software, Tianjin 300070, Peoples R China
[2] Nankai Univ, Dept Automat, Tianjin 300070, Peoples R China
关键词
hyper-chaos; image encryption; image total shuffling matrix; key space;
D O I
10.1016/j.physleta.2007.07.040
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This Letter presents a new image encryption scheme, which employs an image total shuffling matrix to shuffle the positions of image pixels and then uses a hyper-chaotic system to confuse the relationship between the plain-image and the cipher-image. The experimental results demonstrate that the suggested encryption algorithm of image has the advantages of large key space and high security, and moreover, the distribution of grey values of the encrypted y image has a random-like behavior. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:394 / 400
页数:7
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