According to the higher security of higher-dimensional chaotic system, a new scheme of quantum image encryption and decryption based on Lorenz hyper-chaotic system is proposed. The encryption process is mainly divided into two parts: the location information scrambling process and the color information replacement process. In the location information scrambling process, the pseudo-random sequence obtained by the Lorenz hyper-chaotic system is first sorted to obtain the corresponding position index sequence, and then the rows and columns of the position information are scrambled by the index sequence. In the process of color replacement, the change of pixel value is firstly diffused to each pixel through chaotic sequence, and then the information of each pixel is confused, so as to realize the process of color information replacement. Experimental analysis shows that the encryption scheme in this paper has a good effect.

中文翻译：

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基于Lorenz超混沌系统的量子图像加密

针对高维混沌系统具有更高的安全性，提出了一种基于洛伦兹超混沌系统的量子图像加解密新方案。加密过程主要分为两部分：位置信息加扰过程和颜色信息替换过程。在位置信息加扰过程中，首先对洛伦兹超混沌系统得到的伪随机序列进行排序，得到相应的位置索引序列，然后通过索引序列对位置信息的行和列进行加扰。在颜色替换过程中，像素值的变化首先通过混沌序列扩散到每个像素点，然后混淆每个像素点的信息，从而实现颜色信息替换的过程。