Image encryption using Game of Life permutation and PWLCM chaotic system
Image encryption using Game of Life permutation and PWLCM chaotic system
复制标题
使用 Game of Life 排列和 PWLCM 混沌系统进行图像加密
DOI：
10.1016/j.optcom.2011.10.010
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发表时间：
2012-02-15
影响因子：
2.4
通讯作者：
Jin, Canqi
中科院分区：
文献类型：
--
作者：
Wang, Xingyuan;Jin, Canqi
提出了一种新的混沌对称密码系统。首先，利用Logistic映射生成的初始模式--生命游戏排列，对图像进行置乱。其次，我们使用分段线性混沌映射(PWLCM)对图像进行扩散，只对较高的半像素进行处理，以提高速度。它不会同时影响加密结果，这是因为较高的4位(8，7。6和5)携带图像的几乎所有信息。实验结果和安全性分析表明，该方案不仅可以达到良好的加密效果，而且密钥空间足够大，能够抵抗常见的攻击。(C)2011爱思唯尔B.V.保留所有权利。
This paper proposes a new chaotic symmetric cryptographic system. At first, we use the proposed method, Game of Life permutation which is the initial pattern generated by logistic map, to confuse the plain image. Secondly, we use piecewise linear chaotic map (PWLCM) to diffuse the image, which we just process the higher half pixel to improve the speed. It will not affect the encryption results at the same time, which is because the higher 4 bits (8th, 7th. 6th and 5th) carry almost all information of the image. Experiment results and security analysis not only show that the scheme can achieve good encryption result, but also that the key space is large enough to resist against common attack. (C) 2011 Elsevier B.V. All rights reserved.