基于可搜索属性加密的区块链智能建筑数据共享方案

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关键词：区块链技术；可检索属性加密技术；智能建筑数据共享；数据公开审计机制；多项式方程；细粒度访问控制机制中图分类号：TN919-34 文献标识码：A 文章编号：1004-373X（2026）06-0071-06

Blockchain smart building data sharing scheme based on searchable attribute encryption

YAN Chen，WU Hongjie，WANG Luping，CHEN Jing，GU Cen，CUI Zhiming （SchoolofElectronics&InformationEngineering，uzhou UniversityofScienceandTechnologyuzhou5o，ina）

Abstract：Withthe developmentof information technology，manysmart building systemsstoredataincloud servers. Centralizedstoragemodelcanbringthepotentialriskofdataprivacyleakage.Whenusersaccessbuildingmanagementdata， theyoftenspendalotoftimebutcannotensuretheacuracyofthedata.Inaddition，mostsmartbuildingdatasharingsolutions lackanaudit mechanismforthird-partydatamodification.Inordertosolvetheseproblems，ablockchainsmartbuildingdata sharingsolutionbasedonsearchableatributeencryptionisproposedbycombiningsearchableatributeencryptiontechnology withblockchain technology.Inthissolution，keywordsandciphertextsarestoredontheblockchainandcloudserverof the buildingallancerespectivelyefectivelysolvingtheproblemsoflimitedblockchainstoragespaceandprivacyleakageofcloud servers.Thedatadisclosureauditmechanismisintroducedtopreventthirdparties fromtampering withdataincloudservers withfalseidentities，ensuringtheauthenticityandreliabilityofuploadeddata.Thepolynomialequationsareusedtoconect multiplekeywordstorealizemulti-keywordsearchforusersandimprovetheaccuracyofdataretrieval.Thesearchableatribute encryption technologyisusedtorealizesecureretrievalofusers.Afine-grainedaccess controlmechanismbasedontree structureisusedtofurtherenhancetheflexibilityandsecurityofacesscontrol.Thetheoreticalanalysisandexperimental verification results show that has high data security and retrieval efficiency superior to other schemes.

Keywords：blockchain technology；searchableatributeencryptiontechnology;smartbuildingdata sharing;datadisclosure audit mechanism;polynomial equation; fine-grained access control mechanism

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