面向物流数据共享的可撤销属性加密方案

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关键词：物流数据共享；属性基加密；多值决策图；用户分级访问；属性撤销中图分类号：TP309.7 文献标志码：A 文章编号：1001-3695（2025）07-032-2161-07doi：10.19734/j.issn.1001-3695.2024.10.0435

Abstract：Intheinformation-drivenera，datais givenhighervalueandbecomesoneof thekeyfactorsdrivingthedevelopmentofvarious industries.Toadressthedatasecurityissues inlogisticsdatasharing，this paper proposedaciphertext-policy atribute-based encryption（CP-ABE）scheme basedonan MDDaccesstructure.This schemeutilized the characteristicsof the MDDaccesstructure to supportmulti-valued atributes.It alsoconstructedandapplied an MDDhierarchical access structurethatsuppotedhierarchicaluseraccss，ailoredtothefeaturesoflogisticsenterprises.Inaddition，consideringthemobilityofpersonnelinlogisticscompanies，theschemeprovidedfine-grainedatributerevocationfunctionalitySecurityanalysis proves that the proposed scheme canresist chosen plaintext atacks.Theoreticalanalysisshows that，compared to related schemes，theproposedscheme’sperformance inprivatekeygenerationandciphertextdeeryptionisnotaffectedbythe sizeof theuseratributeset.Experimental analysisshowsthatthekeygenerationtimeanddecryptiontimeof theschemeareconstant andlowerthanthoseofotherschemes.Therefore，theproposedschemehashighercomputationaleficiencyandismoresuitable for the application scenario of hierarchical logistics data sharing.

Key Words：logisticsdatasharing；atribute-based encryption；multi-valueddecisiondiagram（MDD）；hierarchicaluseraccess；attributerevocation

0 引言

物流现代化是产业发展的关键趋势之一。（剩余16733字）