论文标题
基于拉丁正方形的横向的新的混沌图像加密算法
A new chaotic image encryption algorithm based on transversals in a Latin square
论文作者
论文摘要
有一些适合图像加密的良好组合结构。在这项研究中，提出了一种基于拉丁正方形中横向的新型混沌图像加密算法。通过拉丁正方形的n transversal，我们可以首次按组置换图像数据，然后根据混乱的序列使用两个拉丁正方形进行辅助扩散，最后利用一对正交的拉丁正方形来进行第二次打击。总体而言，形成了“乱挡扩散 - 施法”的加密过程。实验结果表明，该算法达到了安全且快速的加密效果。最终信息熵非常接近8，相关系数大约为0。所有这些测试都验证了该提出的算法的鲁棒性和实用性。
There are some good combinatorial structures suitable for image encryption. In this study, a new chaotic image encryption algorithm based on transversals in a Latin square is proposed. By means of an n-transversal of a Latin square, we can permutate an image data group by group for the first time, then use two Latin squares for auxiliary diffusion on the basis of a chaotic sequence, finally make use of a pair of orthogonal Latin squares to do the second scrambling. As a whole, the encryption process of "scrambling-diffusion-scrambling" is formed. The experimental results indicate that this algorithm achieves a secure and fast encryption effect. The final information entropy is very close to 8, and the correlation coefficient is approximate to 0. All these tests verify the robustness and practicability of this proposed algorithm.
