Image Encryption Based on Logistic Chaotic Map for Secure Communications

M. T. Rodriguez-Sahagun, J. B. Mercado-Sanchez, D. López-Mancilla, R. Jaimes-Reátegui, J. H. García-López
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引用次数: 13

Abstract

In this work, we propose a color image encryption of variable sizes using logistic chaotic map. We considered a process of permutation, followed by a diffusion algorithm. To evaluate this encryption method’s performance, we applied a statistical analysis, and developed histograms of the original and encrypted images. For the correlation analysis, we evaluate the behavior of two adjacent pixels on horizontal, vertical and diagonal directions. We also analyzed the behavior of the algorithm to the most common cryptographic attacks. Numerical simulations and graphic results are presented for image encryption and decryption using MatLab software.
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基于Logistic混沌映射的安全通信图像加密
在这项工作中,我们提出了一种使用逻辑混沌映射的变尺寸彩色图像加密方法。我们考虑了一个排列过程,然后是一个扩散算法。为了评估这种加密方法的性能,我们应用了统计分析,并绘制了原始图像和加密图像的直方图。对于相关性分析,我们评估两个相邻像素在水平、垂直和对角线方向上的行为。我们还分析了算法对最常见的加密攻击的行为。利用MatLab软件对图像加解密进行了数值仿真,并给出了图形结果。
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