制造企業(yè)信息集成平臺若干安全性問題研究.pdf

1、重慶大學博士學位論文制造企業(yè)信息集成平臺若干安全性問題研究姓名：王成良申請學位級別：博士專業(yè)：機械制造及其自動化指導教師：何玉林2001.4.1重墮叁蘭墮蘭堂焦笙蘭——竺!里!壘!三ABSTRACTTheurainfeaturesofmodernmanufacturingsystemincludedigitalization，network，virtualization，greenizationandintegrationEmployi

2、ngflexible，synergicandagileadvancedmanufacturingtechnologyaenterprisecanenhanceitsabilitytorespondquicklytomarketandhaveanedgeOnmarketcompetitionHoweveritisimpossibletealizetheseadvancedmanufacturingtechnologieswithoutma

3、nufacturingenterprisesinformationintegratedplatformconsistsofsoftwareandhardwaresystem，basedoncomputertechnologyinformationtechnologynetworktechnology，automationtechnologyPreviouslypeopleconsideredlittleofthesecurityofin

4、formationintegratedplatforminmanufacturingenterprisesandthestudyinthisfieldwasonlyconfinedtothediscussionofgeneralsecurityprinciplesSincecomputersecurityeventsoccurredfrequentlythesecurityproblemresearchofinformationinte

5、gratedplatforminmanufacturingenterprisesisundoutedlysignificantfirstofall，theconceptoftheinformationintegratedplatforminmanufacturingenterprisesisproducedandvarioussecurityproblemsaboutitarediscussedinthispaperSecondlywi

6、thpracticalenterprise’Ssecurityrequirements，threesecurityproblemsincludingthesafestoragetechnologyofelectronicdocumentsoninformationintegratedplatforminmanufacturingenterprises，theaccesscontrolofwebpageresourcesandthesaf

7、esynchronizationofnetworkmanufacturingdataamongenterprisesareresearchedrespectivelyandthecorrespondingprototypesystemsarebuiltThemaincontentsandachievementsofthispaperarethefollowing：(1)Theframeworkoftheinformationintegr

8、atedplatforminmanufacturingenterprisesisproducedandthesecurityproblemsandrelatedprotectedmeasuresareanalyzedsystematicallyaccordingtothefeaturesoftheinformationintegratedplatforminmanufacturingenterprisesandtheactualcond

9、itionofmanufacturingenterprises(2)Aimingattherequirementofsafestorageoftheelectronicdocumentsontheinformationintegratedplatforminmanufacturingenterprise，usingencryption／decryptionandcompression／uncompressiontechniquesand

10、savingtheelectronicdocumentsassomespecialattributeobjectoflargedatabaseandmanagingtheenterpriseelectronicdocumentseffectivelythroughdatabase，asafeaccessmechanismoffunctionalgrantandrecommendatorygranttOdecreasegrantmanag

11、ementmaintenancecostisproposedandthestoragemechanismofspecialdatabaseattributeobjectisstudiedandthemethodforsaving，accessingandretrievingelectronicdocumentquicklyisconstructedThusthesemethodscallmaketheelectronicdocument