Tian Heming, Zhuang Xusheng, Yan Aimin, Zhang Hongbo
College of Mathematics and Science, Shanghai Normal University, Shanghai, 200234, China.
Department of Engineering Technology, Middle Tennessee State University, Murfreesboro, TN, 37132, USA.
Sci Rep. 2024 Aug 22;14(1):19559. doi: 10.1038/s41598-024-70425-3.
The study proposed a novel multiple-image encryption scheme using spatial multiplexing under the illumination of a multi-petals structured light. The security is enhanced through the multi-petals structured light with coherent superposition of several vortex beams with different topological charges. Through the system, an image array is formed behind the sub-petals of the complex structured light. Using Fresnel diffraction, each image is encrypted into the ciphertext by the Fibonacci Lucas transform. The multi-petals structured light with different orbital angular momentum can integrate more system parameters as the additional keys resulting in rich key space with improved security level of the cryptosystem. The feasibility and security of the proposed methods are validated through both numerical simulation and experiments. The research has strong and practical applications for three-dimensional information encryption system.
该研究提出了一种在多花瓣结构光照射下利用空间复用的新型多图像加密方案。通过具有不同拓扑电荷的多个涡旋光束相干叠加的多花瓣结构光增强了安全性。通过该系统，在复杂结构光的子花瓣后面形成图像阵列。利用菲涅耳衍射，通过斐波那契卢卡斯变换将每个图像加密为密文。具有不同轨道角动量的多花瓣结构光可以整合更多系统参数作为附加密钥，从而产生丰富的密钥空间，提高密码系统的安全级别。通过数值模拟和实验验证了所提方法的可行性和安全性。该研究对三维信息加密系统具有强大而实际的应用价值。
