In this paper, an optical multiple image encryption method based on ellipsometry reconstruction is proposed. In our proposal, the cryptosystem is designed as multiple paths, and each path is used to encrypt one image. In each path, one original image is decomposed into two phase only masks (POMs) using the interference method. Then, every two masks decomposed from the same original image are encoded onto the spatial light modulator (SLM) to generate an elliptically polarized light (EPL) with specific amplitude and polarization. After that, each light passes through a linear polarizer. CCD is used to record the sum of the intensity of these path outputs, which is ciphertext. Jones matrix is used to describe these procedures. Moreover, our proposed encryption system has certain anti-attack ability. Computer simulations are conducted to verify the correctness and validity of our proposed method.

中文翻译：

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基于椭偏重建的光学多图像加密系统

本文提出了一种基于椭偏重建的光学多重图像加密方法。在我们的提议中，密码系统被设计为多条路径，每条路径用于加密一个图像。在每条路径中，使用干涉方法将一个原始图像分解为两个仅相位掩模（POM）。然后，从同一原始图像分解出的每两个掩模被编码到空间光调制器 (SLM) 上，以生成具有特定振幅和偏振的椭圆偏振光 (EPL)。之后，每束光都通过一个线性偏振器。CCD用于记录这些路径输出的强度总和，即密文。琼斯矩阵用于描述这些过程。此外，我们提出的加密系统具有一定的抗攻击能力。