In this paper, a novel two dimensional (2D) wavelength/time (W/T) optical code division multiple access (OCDMA) code with zero cross-correlation property to minimize multiple access interface (MAI) is addressed. The code is constructed using various features of two different one-dimensional codes, i.e., multi-diagonal code and prime hop code referred as multi-diagonal prime hopping (MDPHC) code. The proposed 2D W/T MDPHC code is generated using java software version 8.1, which is found to be optimal. In this paper, the code complexity of the proposed 2D code is also derived. In addition to the novel 2D code design, security provision at the photonic layer of the OCDMA network is also addressed by transmitting the data through a novel encrypted circuit in order to prevent attacks by an eavesdropper. In this work, the proposed encryption circuit is integrated with the proposed 2D (W/T) MDPHC OCDMA encoder to enhance the overall security performance. The proposed model is validated using optisystem software version 14. Robustness of the proposed technique against different types of attacks such as ciphertext-only attack, known plain text attack, chosen plaintext attack, energy detection attack in on off keying optical code division multiple access, Brute-force search attack is investigated theoretically. Bit error rate is also estimated for different fiber distances.

中文翻译：

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用于提高光码分多址安全性的新加密技术

在本文中，提出了一种新颖的具有零互相关特性的二维（2D）波长/时间（W / T）光码分多址（OCDMA）码，以最小化多址接口（MAI）。该代码是使用两个不同的一维代码（即，多对角代码和称为多对角质数跳频（MDPHC）代码的质数跳码）的各种特征构造的。建议的2D W / TMDPHC代码是使用Java软件版本8.1生成的，该版本被认为是最佳的。本文还推导了所提出的二维码的代码复杂度。除了新颖的2D代码设计之外，还可以通过通过新颖的加密电路传输数据来解决OCDMA网络光子层的安全问题，从而防止窃听者的攻击。在这项工作中，建议的加密电路与建议的2D（W / T）MDPHC OCDMA编码器可增强整体安全性能。所提出的模型已使用optisystem软件版本14进行了验证。所提出的技术针对不同类型的攻击（例如仅密文攻击，已知的纯文本攻击，选择的纯文本攻击，能量检测攻击）的鲁棒性处于开关键光学码分多址，理论上研究了暴力搜索攻击。还针对不同的光纤距离估计误码率。