搜索
IPKI(PublicKeyInfrastructure)COM(ComponentObjectModel)COMWordWEBPKI,,COM,,PKIIIAbstractInthelonghistoryofourcountry,thesealandthesignatureshavebeenthesymbolofthepower.Attachingthesealorthesignaturestosomephysicalinformationindicatesthattheownerauthorizesthisinformation.Today,theelectronicinformationtechnologyandthenetworktechnologyisdevelopingrapidlyandthephysicalsignatureandhand-writtensignaturesonpaperdocumentsarestillused.Withthedevelopmentofelectroniccommerce,electronicgovernmentandenterpriseinformatization,theadvantageofthehighefficiencyandtheresource-savingofOA(OfficeAutomation)ishighlightingdayafterdayandtheapplicationofOAisalsomoreandmorewidespread.Howtoguaranteetheintegrity,confidentialityoftheelectronicofficialdocuments,identifiabilityandtraceabilityofsignershasbecomeaproblemtobesolvedurgently.Asabovementioned,theelectronicsealtechnologyisbroughtforward,andithasbecomearesearchfocusintheinformationsecuritytechnologyandthecomputerapplicationdomain.Incorporatingtheelectronicsealandthemiddlewaretechnology,thispaperdesignsandimplementsanelectronicsealsystem.TakingthePublicKeyInfrastructure(PKI)asthesecurityplatformandthedigitalsignaturetechnologyasthesecuritytheorybase,thissystemmeetstherequirementsofinformationsecurityofOA.UsingCOMmoduletechnology,thesystemismadeupofseveralmodules.Eachmoduleenclosesrespectivefunctionandisusedbyothermodulesthroughthestandardinterface.Inaddition,becauseofthereusableandtransplantablepropertyoftheCOMmodule,whenembeddedintoothersystems,itcanachievetheseamlessintegrationandavoidremarkablemodificationtothem.Duringthedesignanddevelopmentofthesoftware,manytechnicalproblemshavebeensolved,includingdigitalcertificatesigningandissuing,embedding,displayingandtherespondingtotheeventofasealcontrolinaWordorWEBpages,picturetransparentdisplayandthepick-upofthesignature.TheelectronicsealsystempresentedinthispaperisbasedonthePKIandtheIIIencodedstandardofdigitalsignature,withstrongsafety,practicality,accessibility,expansibility.ThesystemhasbeenappliedtotheinformationmanagementsystemofHONGDUAviationIndustryGroupLTD.KeyWords:electronicseal,middleware,COM,digitalsignature,PKIVII2.1·············································································62.2·········································································72.3···········································································192.4PKI····················································································192.5···············································································222.6···········································································233.1·······································································263.2COM······················································283.3DCOM·······································································294.1···················································354.2·······························································364.3·······································································384.4············································404.5···················································414.6···················································424.7················································434.8············································444.9AddinSignatureControl·················464.10·································································494.11·········································································524.12·········································································524.13E-R·····································································565.1Word··································································626.1·······················································································696.2···························································································696.3·······························································································706.4·······················································································706.5·······························································································71VIII6.6·······················································································716.7·······················································································726.8·······················································································726.9···············································································736.10·····················································································732.1··········································84.1···················································································5611.1[1](1)(2)(3)(4)2[2]20048281.2PKI[3][4]3PKI[5][6]ShachihataWacom32002722[7]1.3ERP(EnterpriseResourcePlanning)CAPP(ComputerAidedProcessPlanning)41.4PKICOM/DCOM/COM+ActiveX52.1(PKI)PKIPKI2.2[8]()[9][1