基于七维 CNN 超混沌加密的 PDM-16QAM 系统物理层安全增强方案

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2024-10-31 DOI:10.1016/j.optcom.2024.131259

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引用次数: 0

摘要

本文提出了一种基于七维（7-D）蜂窝神经网络（CNN）超混沌加密的光物理层安全通信方案。该加密方案利用七维细胞神经网络超混沌系统生成超混沌序列作为密钥源。选择该密钥的一部分对明文图像进行加密。所提出的方案已成功应用于 PDM-16QAM 系统中，该系统通过 200 千米长的单模光纤（SMF）实现了 224 Gbps 的数据传输速率。实验结果表明，授权用户可以成功解密接收到的信号，而窃听者则无法获取有用信息，误码率（BER）约为 0.5。该方案的密钥空间为 101792。通过密钥敏感性分析和密钥空间分析可知，所提出的加密系统能有效抵御密码分析师的各种攻击。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Physical layer security enhancement scheme for PDM-16QAM system based on seven-dimensional CNN hyperchaotic encryption

The paper presents a secure communication scheme for the optical physical layer based on a seven-dimensional (7-D) Cellular Neural Network (CNN) hyperchaotic encryption. The encryption scheme utilizes a 7-D CNN hyperchaotic system to generate a hyperchaotic sequence as the key source. A portion of this key is selected to encrypt the plaintext image. The proposed scheme has been successfully implemented in a PDM-16QAM system with a data rate of 224 Gbps over a 200 km single-mode fiber (SMF). Experimental results show that authorized users can successfully decrypt the received signal, while eavesdroppers are unable to obtain useful information with a bit error rate (BER) of approximately 0.5. The key space of the scheme is 10¹⁷⁹². Through key sensitivity analysis and key space analysis, it is known that the proposed encryption system can effectively resist various attacks by cryptanalysts.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.