基于祖冲之序列的量子图像加密算法

Quantum Image Encryption Algorithm Based on ZUC

摘要: 近年来，数字图像信息泄露事件时有发生，因此，确保数字图像信息传输的安全性日益凸显。为提高图像的加密强度，首先，本文利用祖冲之序列密码算法，设计分组链接模式对彩色图像进行加密。接着，使用量子Arnold置乱算法对祖冲之序列加密算法生成的密文图像进行进一步的置乱处理。最后，得到最终的密文图像。实验结果表明，经过这一系列的加密步骤后，图像中相邻像素之间的相关性被明显减弱，说明该方法显著增强了图像的置乱效果，大幅度地改变了像素灰度的统计特性。此外，本文进行了经典计算机仿真模拟，验证了所提方案的有效性；通过分析直方图和信息熵，表明该方案具有较高的安全性。

Abstract: In recent years, the leakage of digital image information has occurred frequently, therefore, ensuring the security of digital image information transmission has become increasingly prominent. In order to improve the encryption strength of images, firstly, this article uses the ZUC sequence cipher algorithm to design a group link mode for encrypting color images. Next, the cipher text image generated by ZUC sequence encryption algorithm is further scrambled using quantum Arnold scrambling algorithm. Finally, the final cipher text image is obtained. The experimental results show that after a series of encryption steps, the correlation between neighboring pixels in the image is significantly weakened, indicating that this method significantly enhances the scrambling effect of the image and significantly changes the statistical characteristics of pixel grayscale. In addition, this article conducted classic computer simulation to verify the effectiveness of the proposed scheme; by analyzing the histogram and information entropy, it is shown that this scheme has high security.