基于纯相位加密的彩码加密系统研究

Research on color code encryption system based on phase-only optical encryption

提出了一种将纯相位加密与彩码原理相结合的光学图像加密方法。首先将原始图片转换成彩码,并将彩码进行Arnold置乱;然后使用纯相位光学加密方法对置乱后的彩码进行处理,得到加密结果。解密过程是加密过程的逆过程,解密密钥是置乱次数与加密过程中使用的随机相位板。仿真实验验证了方法的可行性和有效性。

In this paper,an optical image encryption method combining phase-only encryption method with color code is proposed.Firstly,the original image is converted into color code,then the color code is scrambled by Arnold transform;then,the color code is encrypted by phase-only optical encryption method to obtain the ciphertext.The key is the random phase mask used in the encryption process and scrambling times.Since all the information of the original image is stored in the color code,the image can be recovered from the color code.Simulation results show the feasibility and effectiveness of the proposed method.