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1、NetworkWorkingGroupC.AdamsRequestforComments:3029EntrustTechnologiesCategory:ExperimentalP.SylvesterEdelWebSA-GroupeON-XConsultingM.ZolotarevBaltimoreTechnologiesPtyLimitedR.ZuccheratoEntrustTechnologiesFebruary2001InternetX.509PublicKeyInfrastructureDataValidationandCertification

2、ServerProtocolsStatusofthisMemoThismemodefinesanExperimentalProtocolfortheInternetcommunity.ItdoesnotspecifyanInternetstandardofanykind.Discussionandsuggestionsforimprovementarerequested.Distributionofthismemoisunlimited.CopyrightNoticeCopyright(C)TheInternetSociety(2001).AllRight

3、sReserved.AbstractThisdocumentdescribesageneralDataValidationandCertificationServer(DVCS)andtheprotocolstobeusedwhencommunicatingwithit.TheDataValidationandCertificationServerisaTrustedThirdParty(TTP)thatcanbeusedasonecomponentinbuildingreliablenon-repudiationservices.UsefulDataVa

4、lidationandCertificationServerresponsibilitiesinaPKIaretoassertthevalidityofsigneddocuments,publickeycertificates,andthepossessionorexistenceofdata.AssertionscreatedbythisprotocolarecalledDataValidationCertificates(DVC).WegiveexamplesofhowtousetheDataValidationandCertificationServ

5、ertoextendthelifetimeofasignaturebeyondkeyexpiryorrevocationandtoquerytheDataValidationandCertificationServerregardingthestatusofapublickeycertificate.Thedocumentincludesacompleteexampleofatimestampingtransaction.Adams,etal.Experimental[Page1]RFC3029DVCSProtocolsFebruary2001Tableo

6、fContents1.Introduction.................................................22.ServicesprovidedbyDVCS....................................42.1CertificationofPossessionofData........................42.2CertificationofClaimofPossessionofData...............42.3ValidationofDigitallySignedD

7、ocuments...................42.4ValidationofPublicKeyCertificates......................53.DataCertificationServerUsageandScenarii.................54.FunctionalRequirementsforDVCS.............................75.DataCertificationServerTransactions.......................76.Identificat

8、ionoftheDVCS.....................