{"title":"Impact of BB84 QKD transmitter’s parameter mismatch on secure key generation rate","authors":"Pragya Kushwaha, Adarsh Jain, Prashant Varma, Punam Pradeep Kumar, Apurba N. Bhattacharya","doi":"10.1007/s11107-023-01010-3","DOIUrl":null,"url":null,"abstract":"<p>In principle, BB84 protocol supports secure quantum communication by assuming transmitter and receiver devices to be ideal. However, practically it is very challenging to build an ideal single photon source and detector. These imperfections in practical devices (i.e., wavelength mismatch, full width at half maximum pulse width mismatch and different arrival times of photon) lead to side-channel attacks. In this work, we have analyzed the wavelength mismatch and pulse width mismatch issues associated with four laser-diode based practical BB84 transmitter. An asymptotically achievable rate for extraction of secure key (also known as key generation rate) is estimated from side-channel leakage calculation between transmitter (Alice) and adversary (Eve).</p>","PeriodicalId":20057,"journal":{"name":"Photonic Network Communications","volume":"1 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photonic Network Communications","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1007/s11107-023-01010-3","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"COMPUTER SCIENCE, INFORMATION SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
In principle, BB84 protocol supports secure quantum communication by assuming transmitter and receiver devices to be ideal. However, practically it is very challenging to build an ideal single photon source and detector. These imperfections in practical devices (i.e., wavelength mismatch, full width at half maximum pulse width mismatch and different arrival times of photon) lead to side-channel attacks. In this work, we have analyzed the wavelength mismatch and pulse width mismatch issues associated with four laser-diode based practical BB84 transmitter. An asymptotically achievable rate for extraction of secure key (also known as key generation rate) is estimated from side-channel leakage calculation between transmitter (Alice) and adversary (Eve).
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This journal publishes papers involving optical communication networks. Coverage includes network and system technologies; network and system architectures; network access and control; network design, planning, and operation; interworking; and application design for an optical infrastructure
This journal publishes high-quality, peer-reviewed papers presenting research results, major achievements, and trends involving all aspects of optical network communications.
Among the topics explored are transport, access, and customer premises networks; local, regional, and global networks; transoceanic and undersea networks; optical transparent networks; WDM, HWDM, and OTDM networks and more.
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