An image blocks encryption algorithm based on spatiotemporal chaos

被引：56
|
作者：
Wang, Xingyuan [1 ]
Teng, Lin [1 ]
机构：
[1] Dalian Univ Technol, Fac Elect Informat & Elect Engn, Dalian 116024, Peoples R China
来源：
NONLINEAR DYNAMICS | 2012年 / 67卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Image blocks encryption; Spatiotemporal chaos system; CML;
D O I：
10.1007/s11071-011-9984-7
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, the CML-based spatiotemporal chaos system is used for image blocks encryption, which gets higher security. The basic idea is to divide the image into blocks, and then use the block numbers as the spatial parameter of CML to iterate the chaos system. Each lattice generates a chaos sequence, and the number of chaos sequence values is equal to the pixels number of each block. The chaos sequences and the former block plaintext codecide the substitution and diffusion of each block. Simulation results show that the performance and security of the proposed encryption system can encrypt the image effectively and resist various typical attacks.
引用
收藏
页码：365 / 371
页数：7
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