{"title":"Intrusion detection-embedded chaotic encryption via hybrid modulation for data center interconnects.","authors":"Wenjun Zeng, Chongfu Zhang, Xinshuai Liang, Jiebing Xia, Yue Lin, Yiting Lin","doi":"10.1364/OL.566608","DOIUrl":null,"url":null,"abstract":"<p><p>We propose a chaotic encryption scheme embedded with intrusion detection to safeguard against unauthorized optical access in data center interconnects (DCIs). A hybrid modulation scheme is designed, combining two different modulation methods to achieve dynamic spectral efficiency by adjusting a segmentation parameter. Furthermore, a chaotic hybrid symbol permutation method is introduced to disrupt the distribution characteristics of the constellation sets. An intrusion detection mechanism based on two-stage constellation same-set ratio testing is proposed, using confidence intervals to distinguish between legitimate and unauthorized signals. Finally, the encrypted 56 Gbaud signal is verified over an 80 km link. The results demonstrate that the proposed scheme can effectively detect unauthorized optical access and provide adjustable spectral efficiency, thereby enhancing the resistance of DCIs to optical intrusion.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4450-4453"},"PeriodicalIF":3.1000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.566608","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
We propose a chaotic encryption scheme embedded with intrusion detection to safeguard against unauthorized optical access in data center interconnects (DCIs). A hybrid modulation scheme is designed, combining two different modulation methods to achieve dynamic spectral efficiency by adjusting a segmentation parameter. Furthermore, a chaotic hybrid symbol permutation method is introduced to disrupt the distribution characteristics of the constellation sets. An intrusion detection mechanism based on two-stage constellation same-set ratio testing is proposed, using confidence intervals to distinguish between legitimate and unauthorized signals. Finally, the encrypted 56 Gbaud signal is verified over an 80 km link. The results demonstrate that the proposed scheme can effectively detect unauthorized optical access and provide adjustable spectral efficiency, thereby enhancing the resistance of DCIs to optical intrusion.
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The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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