基于许可证的数字版权管理策略研究

华中科技大学硕士学位论文基于许可证的数字版权管理策略研究姓名：邓婉婷申请学位级别：硕士专业：通信与信息系统指导教师：程文青20060428,,,AbstractWiththerapiddevelopmentofdigitalcontentserviceindustry,theproblemofpirateandcopyrightinfringementbecomesthebarrierofthewideuseofthedigitalcontent.Asaresult,thedigitalrightsmanagementhasposedoneofthegreatestchallengesfordigitalcontentcommunities.RecentDigitalRightsManagementadvancesfocusonPublicKeyInfrastructureandrelatedtechnologies,whichresolvethebasicproblemsofsecurecommunicationanduseridentification.However,thecustomshavemoreindividualizedneedsandcallforbetterserviceswhilethedigitalcontentisbeingappliedintheeverycorneronInternet.ThisthesisdesignsDigitalRightsManagementinfrastructurewhichmainlyconsistsofcontrolsetandauthoritycontrolcenter.Inordertosolvetheproblemofrightsinheritance,transferanddelegation,theconceptsoforiginallicenseandusagelicenseareintroducedandthecontrolsetisdefinedasasetoforiginallicenses.Combinedwiththesework,thethesisbroughtoutanewDigitalRightsManagementpolicybasedonlicensebyusingthetwokindsoflicensesflexibly.Italsoconstructsanextensivelicensestructuretooptimizethelicensetransferflow.FinallyaprototypesystemisimplementedwithWindowsMediaRightsManagerSoftwareDevelopmentKit.Thesystemisanonlinemulti-mediaDigitalRightsManagementplatformwhichcansupportthelicenserequesting,constructingandissuingtocovertheeachstepofthewholecontentpublishingflowfromdistributiontousage.ThenewDigitalRightsManagementpolicycanbeapplieddirectlyinthefieldofremoteeducation,e-business,peer-to-peerdistributionandetc.Thesetechnologiesandserviceswillgetgreatprogresswiththepolicy'sfuturedevelopmentanditswideapplication.Keywords:DigitalRightsManagement,License,ControlSet,AuthorizingProtocol_____111.1[1][2][3]DigitalRightsManagement,DRM[4]OpenDRM[5]DRMDRMMovingPictureExpertsGroup,MPEG[6][7]IntelligentPropertyManagementandProtection,IPMPMPEG-4IPMPMPEG-42IPMPMPEG-21MPEGIPMPOpenMobileAlliance,OMAOMADRM[8]WirelessDigitalRightsManagement,WDRM[9]OMADRMWDRMWDRMOMADRMOMASecureDigitalMusicInitiative,SDMISDMI1.0SDMISDMICDSDMI1.23DRM1.3DRMWidowsMediaRightsManagerSoftwareDevelopmentKit,WMRMSDK1.8632004AA119010-5AVSV1.02.CELTS3.CELTSPeer-to-peerP2PP2P41.4WMRMSDK522.1InformationHidingSteganographyDigitalWatermarkingFingerprinting[10][11][12][13]2.1.112632.1.2SpatialDomainTransformDomain2.2DRM[14]WMRMDynamicLinkLibrary,DLLDLLDLL7[14][15][16][17]DRMPortability2.3PublicKeyInfrastructure,PKI[18][19]PKI2.1PKI2.1PKI2.2PKI12816012882.2PKI2.3.1X.509[20]X.509DigitalEncryptionStandard,DESDESDES2.3.2CertificateAuthority,CACA9X.509CACACACAX509CACACACAICCP[21]-SKCC[22]-2.4Role-BasedAccessControl,RBACMandatoryAccessControl,MACDiscretionaryAccessControl,DAC[23][24][25][26]UsageControl,UCON[27][28]AccessControlList,ACLRightsExpressionLanguage,REL10[28]Sandu[29]TicketSandhu2.5LicenseExtensibleMarkupLanguage,XMLOEBFOpenE-BookForumOpenE-BookForumOEBFMPEGOMAIETFInternetEngineeringTaskForceIEEELTSCLearningTechnologyStandardsCommitteeW3CWorldWideWevConsortium[30][31]eXtensibleRightsManagementLanguage,XrML[26][32][33]OpenDigitalRightsLanguage,ODRL[34][35]2.5.1XrMLXrML1994XeroxContentGuardXML11XrMLMPEG-21OeBFXrMLtTermsXrMLXrMLWeb2.5.2ODRLODRLODRLXMLODRLOMAW3C2.3ODRL/2.3ODRLODRLOffer(Agreement)ContractLicensesODRLContextODRLCollaborativeOnlineLearningandInformationSystems,COLISCOLISODRL2.5.3AVSDRELDigitalRightsExpressionLanguage,DREL12AudioVideoStandardWorkgroup,AVSAVS[36]DREL2.42.4DRELSubjectResourceRightConstraintDuty2.6133[23]CA[37]13.113.1143.1[38]Internet2222]3.23.3/3.3153.3CA3.3.1ParkJaehong29[39]163.41.4.2.3.3.43.3.2173.5123/412433.53.41844.15distributorsignaturedistributerdistributorsignature4.14.1194.2PKIClientInfo/ClientInfo4.24.2204.2.1SCPCcControlCenterKc,Kc’Ks,Ks’ClientInfoKc’LoLRightsKeyCIDContentCoH(m)HashSigKi’(X)XKi’nonce214.2.24.34.312nonce3nonce4CoRightsClientinfoCIDSigKc’(nonce)CoH(Co)5CoH(Co)6CoSigKc’(nonce)ClientinfoKcH((LicenseA)Kc)Ks’784.2.322ProtocolLicense_Protocol(C,S){CS:requestlicense;//SC:nonce;//C:generatecredentialobjectCoCo={ClientInfo,CID,SigKc’(nonce),Rights};//CS:{Co,SigKc’(H(Co))};//CoCoS:ifverifySig(nonce)andCointegritysuccess//then{//CogeneratelicenseCoption={CID,Rights,ClientInfo,Key,H(Enc(Key,Content))};////LC={{LicenseC}Kc,SigKs’(H({LicenseC}Kc))};}elserefuse;SC:LC;//SCLCC:ifverifyLCobjectintegritysuccessandprovidersignaturethen//{get{LicenseC}Kc;//add{LicenseC}Kcintothelicensechain;//}elserefuse;}4.2.41CACAnonce{LicenseC}Kc,SigKs’(H({LicenseC}Kc))2{LicenseC}KcH({LicenseC}Kc)H(Enc(Key,Content))CID3ClientInfo23ClientInfo4.3PKI4.3.14.4/244.4ProtocolLicense_Inherit_Protocol(Lo,L){CS:requestlicenseL;//S:identifyC;//submittherequesttoCc;//Cc:VerifytherequestifLLo//then{generateLinheritingLo;sendrelevantcommandstoS;//}elserefuse;//SC:Lorrefuse//}4.3.225AB4.54.5AABProtocolLicense_Tranfer_Protocol(CA,CB){CAS:Lwithdrawrequest;//S:identifyCA;//submittherequesttoCc;//Cc:VerifytherequestifLocontainsL_transferright//LoCALthen{withdrawLonCA;changeLo;//LosendrelevantcommandstoS;//}elserefuse;//LoCBS:Lrequest;//BSCB:issueL;//B}4.3.3UsageControlSandhu26[29]Us