Qin Wan, Peng Xiang, Meng Xiangfeng, Gao Bruce
Shenzhen University, College of Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen 518060, China ; Clemson University, Department of Bioengineering, Clemson, South Carolina 29634.
Shenzhen University, College of Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen 518060, China.
Opt Eng. 2011 Aug 1;50(8):080501. doi: 10.1117/1.3607421.
We propose a novel optical asymmetric cryptosystem based on a phase-truncated Fourier transform. Two decryption keys independent of each other are generated. They are referred to as universal key and special key, respectively. Each of them can be used for decryption independently in absence of the other. The universal key is applicable to decrypt any ciphertext encoded by the same encryption key, but with poor legibility. On the contrary, the special key is adequate for legible decryption, but only valid for one ciphertext corresponding to the specified plaintext. A set of simulation results show the interesting performance of two types of de cryption keys.
我们提出了一种基于相位截断傅里叶变换的新型光学非对称密码系统。生成了两个相互独立的解密密钥。它们分别被称为通用密钥和特殊密钥。在没有对方的情况下，它们中的每一个都可以独立用于解密。通用密钥适用于解密由相同加密密钥编码的任何密文，但清晰度较差。相反，特殊密钥足以进行清晰的解密，但仅对与指定明文相对应的一个密文有效。一组仿真结果展示了两种类型解密密钥的有趣性能。
