Tebaldi Myrian, Furlan Walter D, Torroba Roberto, Bolognini Néstor
Centre de Investigaciones Opticas, CONICET-CIC, La Plata, Argentina.
Opt Lett. 2009 Feb 1;34(3):316-8. doi: 10.1364/ol.34.000316.
We propose the use of fractal structured diffractive masks as keys in secure storage-readout systems. A joint transform correlator based on a photorefractive crystal in the Fourier domain is implemented to perform encryption and decryption. We discuss the advantages of encrypting information using this kind of deterministic keys in comparison to conventional random phase masks. Preliminary experimental results are presented to demonstrate the effectiveness of the proposed system.
我们提议使用分形结构衍射掩模作为安全存储-读出系统中的密钥。实现了一种基于傅里叶域光折变晶体的联合变换相关器来执行加密和解密。我们讨论了与传统随机相位掩模相比，使用这种确定性密钥加密信息的优势。给出了初步实验结果以证明所提系统的有效性。
