A symmetric image encryption scheme based on combination of nonlinear chaotic maps

被引:69
|
作者
Akhavan, A. [1 ]
Samsudin, A. [1 ]
Akhshani, A. [2 ]
机构
[1] Univ Sains Malaysia, Sch Comp Sci, Usm 11800, Penang, Malaysia
[2] Univ Sains Malaysia, Sch Phys, Usm 11800, Penang, Malaysia
关键词
ALGORITHM; SYSTEM; HIERARCHY;
D O I
10.1016/j.jfranklin.2011.05.001
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
During the recent years several chaotic image encryption algorithms have been proposed, but most of them encountered some drawbacks such as small key space, low speed, lack of robustness and low security. In this paper, we have proposed an image algorithm based on the combination of a one-dimensional polynomial chaotic map and a piecewise nonlinear chaotic map. Theoretical analysis and computer simulations, both confirm that the new algorithm possesses high security, robust fast encryption speed for practical image encryption and solves the problem of small key space. (C) 2011 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:1797 / 1813
页数:17
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