Yuan Sheng, Zhou Xin, Li Da-hai, Zhou Ding-fu
Department of Opto-Electronics Science and Technology, Sichuan University, Chengdu, China.
Appl Opt. 2007 Jun 20;46(18):3747-53. doi: 10.1364/ao.46.003747.
We propose a method to simultaneously transmit double random-phase encryption key and an encrypted image by making use of the fact that an acceptable decryption result can be obtained when only partial data of the encrypted image have been taken in the decryption process. First, the original image data are encoded as an encrypted image by a double random-phase encryption technique. Second, a double random-phase encryption key is encoded as an encoded key by the Rivest-Shamir-Adelman (RSA) public-key encryption algorithm. Then the amplitude of the encrypted image is modulated by the encoded key to form what we call an encoded image. Finally, the encoded image that carries both the encrypted image and the encoded key is delivered to the receiver. Based on such a method, the receiver can have an acceptable result and secure transmission can be guaranteed by the RSA cipher system.
我们提出了一种方法，利用在解密过程中仅获取加密图像的部分数据时仍可获得可接受的解密结果这一事实，同时传输双随机相位加密密钥和加密图像。首先，通过双随机相位加密技术将原始图像数据编码为加密图像。其次，使用Rivest-Shamir-Adelman（RSA）公钥加密算法将双随机相位加密密钥编码为编码密钥。然后，用编码密钥调制加密图像的幅度，以形成我们所称的编码图像。最后，将携带加密图像和编码密钥的编码图像传送给接收方。基于这种方法，接收方可以获得可接受的结果，并且RSA密码系统可保证安全传输。
