Article(id=1318999947912008658, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2025.05.016, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1740326400000, receivedDateStr=2025-02-24, revisedDate=1741795200000, revisedDateStr=2025-03-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1792403693416, onlineDateStr=2026-10-19, pubDate=1760025600000, pubDateStr=2025-10-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792403693416, onlineIssueDateStr=2026-10-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792403693416, creator=13701087609, updateTime=1792403693416, updator=13701087609, issue=Issue{id=1318999770132234870, tenantId=1146029695717560320, journalId=1146123302524792850, year='2025', volume='38', issue='5', pageStart='1', pageEnd='158', issueExtLink='null', onlineDate='null', pubDate='1760025600000', pubDateStr='2025-10-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792403651030, creator='13701087609', updateTime=1792733338119, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320382578062902170, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320382578062902171, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=129, endPage=135, ext={EN=ArticleExt(id=1318999948151083987, articleId=1318999947912008658, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Application of a Lightweight Public Key Infrastructure in Urban Rail Transit Networks, columnId=1152669334582243706, journalTitle=Urban Rapid Rail Transit, columnName=Electrical and Mechanical Engineering, runingTitle=null, highlight=null, articleAbstract=

To mitigate the risks of device impersonation and information eavesdropping faced by urban rail transit safety equipment in open network environments, this paper proposes a system scheme for lightweight Public Key Infrastructure (PKI) based on domestic cryptographic algorithm (SM algorithm), which takes into account the certificate issuance scheme for administrative management needs. First, based on the characteristics of urban rail transit, a hierarchical X.509 certificate system signed with the SM2 algorithm was designed. Then, leveraging the public key information embedded in the certificates, a three-way handshake protocol was proposed to achieve session key negotiation in a fully open network environment. Finally, communication procedures for intra-domain and inter-domain device handshakes were constructed, and their performance (efficiency) was analyzed. The results show that the proposed system still ensures point-to-point encrypted communication between devices even if all inter-device communication data are fully exposed. The device-to-device key negotiation takes approximately 214.5 ms under average conditions and about 2557.5 ms in the worst case; both values are far below the duration of the communication overlap zone when a train transitions between regional control centers, thereby ensuring acceptable efficiency.

, authors=Zhibin LIAO^{1, 2}, Yibo CUI^{1, 2}, Haonan FENG¹, Hongmin GAO¹, authorsList=Zhibin LIAO, Yibo CUI, Haonan FENG, Hongmin GAO, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1318999948599874516, articleId=1318999947912008658, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=轻量级公钥基础设施在城市轨道交通网络中的应用, columnId=1152669334955536763, journalTitle=都市快轨交通, columnName=机电工程, runingTitle=null, highlight=null, articleAbstract=

为解决城市轨道交通安全设备在开放网络空间中面临的外部设备冒充和信息窃取的风险问题，提出一个基于国密算法的轻量级公钥基础设施的系统方案，以及兼顾行政管理需求的证书签发方案。首先，根据城市轨道交通特点设计分层级的X.509格式SM2算法签名的证书；然后，以该证书中公开的公钥信息为基础，提出密钥协商三次握手协议，实现完全开放的网络空间中的会话密钥协商；最后，构建域内设备握手和域间设备握手的通信流程，并对其进行效率分析。结果表明：本文提出的系统方案在设备间通信信息完全泄露的情况下，依然能够保证设备间点到点的加密传输；设备间密钥协商过程时间消耗约214.5 ms，最不利情况下约2 557.5 ms，该时间消耗远小于列车跨越区域控制中心时的通信重叠区运行时间，效率能够得到有效保障。

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廖志斌，男，硕士，助理研究员，从事轨道交通信号系统研究工作，lzb_216511@163.com

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廖志斌，男，硕士，助理研究员，从事轨道交通信号系统研究工作，lzb_216511@163.com

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