A new color image cryptosystem via hyperchaos synchronization

A new color image cryptosystem via hyperchaos synchronization
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通过超混沌同步的新彩色图像密码系统

DOI:
10.1016/j.cnsns.2013.10.025
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发表时间:
2014-06
期刊:
非线性科学与数值模拟通讯(英文版)
影响因子:
--
通讯作者:
Haibin Kan
Haibin Kan
中科院分区:
其他
文献类型:
--
作者:
Xiangjun Wu;Chenxi Bai;Haibin Kan

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提出了一种新的基于两个不同的六维超混沌系统同步的彩色图像密码系统。在发送端,我们应用驱动系统来产生扩散矩阵和置乱矩阵,分别用来改变图像的像素值和位置。这样就得到了枕骨图像。在接收端,通过设计适当的控制器,实现了两个不同超混沌系统的同步。在加密算法中,利用响应系统产生相应的扩散矩阵和置乱矩阵,并采用相同的生成方法。然后用与加密过程类似但顺序相反的解密算法对密像进行解密。实验结果表明,该图像加密系统具有较高的安全性,能够抵抗噪声和剪切攻击。
This paper proposes a novel color image cryptosystem based on synchronization of two different six-dimensional hyperchaotic systems. In the transmitter end, we apply the drive system to generate the diffusion matrices and scrambling ones, which are used to change the image pixel value and position, respectively. Thus the ciphered image is obtained. In the receiver, synchronization of two nonidentical hyperchaotic systems can be achieved by designing the appropriate controllers. The response system is employed to yield the corresponding diffusion matrices and scrambling ones using the same generation method in the encryption algorithm. Then the cipher-image can be decrypted by the decryption algorithm, which is similar to that of the encryption process but in the reversed order. The experimental results show that the presented image cryptosystem has high security and can resist noise and crop attacks.
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