任晓奎, 马超. 三维彩色图像加密的改进与实现[J]. 微电子学与计算机, 2015, 32(1): 96-99,104.
引用本文: 任晓奎, 马超. 三维彩色图像加密的改进与实现[J]. 微电子学与计算机, 2015, 32(1): 96-99,104.
REN Xiao-kui, MA Chao. Improvement and Implementation of 3D Color Image Encryption[J]. Microelectronics & Computer, 2015, 32(1): 96-99,104.
Citation: REN Xiao-kui, MA Chao. Improvement and Implementation of 3D Color Image Encryption[J]. Microelectronics & Computer, 2015, 32(1): 96-99,104.

三维彩色图像加密的改进与实现

Improvement and Implementation of 3D Color Image Encryption

  • 摘要: 针对三维空间上的彩色图像进行加密处理具有运算量和空间需求较大、加密效率较低的问题,将彩色图像转换为三个层面上的二维灰度图像进行加工处理,加快了加密速度.为了提高算法的鲁棒性,将混沌序列改进为一种均匀分布的序列,得到了更理想的伪随机特性.针对单一混沌加密算法安全性较差的问题,将Logistic映射与Chebyshev映射相结合,获得了复杂性较高的双混沌系统.利用双混沌系统生成的混沌序列有效实现了像素混淆与扩散,对图像加密方法进行了改进.

     

    Abstract: Encryption processing color images in 3D space on the computational complexity and space requirements for the larger, less efficient encryption problem, the color image is converted to three dimensions on a two-dimensional gray-scale image processing, thereby speeding up the encryption speed. In order to improve the robustness of the algorithm, the chaotic sequence turns to a homogeneous distribution of the sequence, to achieve more desirable characteristics of a pseudo-random. Logistic map and Chebyshev map for poor single chaotic encryption algorithm security problems, the combination of higher complexity of the dual chaotic system. Realization of the pixels confusion and diffusion effective with the chaotic sequence which generated by the dual chaotic system,the method of image encryption is improved.

     

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