Department of Physics, Harbin Institute of Technology, Harbin, China.
Opt Lett. 2013 May 15;38(10):1651-3. doi: 10.1364/OL.38.001651.
We propose an asymmetric optical image encryption scheme that uses an amplitude and phase mixture retrieval of the Yang-Gu algorithm. The encryption process is realized by employing a cascaded Yang-Gu algorithm together with two random phase masks that serve as the public encryption keys. The two private keys are generated in the encryption process and are randomly distributed binary matrices to be used for performing one-way binary phase modulations. Without the private keys, illegal users cannot retrieve the secret image. Numerical simulations are carried out to demonstrate the validity and security of the proposed scheme.
我们提出了一种使用杨-顾算法的振幅和相位混合恢复的非对称光图像加密方案。加密过程通过级联杨-顾算法和两个用作公共加密密钥的随机相位掩模来实现。两个私钥在加密过程中生成，并随机分布二进制矩阵，用于执行单向二进制相位调制。没有私钥，非法用户无法检索到秘密图像。数值模拟验证了所提出方案的有效性和安全性。
