网格计算中的安全与应用研究

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1、上海交通大学硕士学位论文网格计算中的安全与应用研究RESEARCHONSECURITYANDAPPLICATIONOFGRIDCOMPUTINGAbstractGridcomputinghasdrawnextensiveattentionoftheworldasahotandsignificantresearcharea,whichaimsatsolvinghardproblemsbysharingandcoordinateduseofdiverseresourcesinheterogeneousanddistributedorganizations.Gridcomputingorig

2、inallymeetsthedemandofhighperformancecomputing,massdataprocessanduseofremoteresources.Currently,gridcomputingisnotonlyconfinedtoadvancedscienceandengineering,butappliedtootherindustrialareaswithallkindsoforganizationsandcommunitiesinvolvedallovertheworld.Comparingwiththetraditionalcomputingmode,

3、Gridcomputinghasmanynovelproperties.Securityisavitalfactortothesuccessofgridcomputing,whichrelatestoalmostalltheprofilesofgridcomputinginfrastructureandiscomplicatedduetothepropertyofdynamics.Inviewoftheproblemsintheexistinggridsecuritysolutions,inthispaperweexamineandimprovesomekeyissuesofgrids

4、ecuritybasedoncurrentresearchfindings,suchascertificateinfrastructure,authorization3上海交通大学硕士学位论文网格计算中的安全与应用研究modelandtrustmodelofgridcomputingandetc.Wewillgivedetailedsuggestionsorimplementationpoliciesinthesetopics.Ourworkinthispapermainlyincludes:1.Wesummarizetheproperties,currenttechniques,se

5、curityrequirementsofgridcomputing,andfurtherexaminethebasicsecuritytechniquesandsignificanceofgridcomputing.Wefinallygivetherequirementsofgridsecuritytechniques.2.Weproposeatemporaryregistrationmechanismofproxycertificateforgridandanalyzetherelatedpoliciesindetail.Wealsoprovideimplementationofth

6、emechanismproposedabovebasedonLDAP.Theimprovedsystemgivesmoreeffectivemanagementandcontroltothegridcertificateinfrastructure,andmeanwhilesimplifiestheprocedureofmutualauthentication,whichfurtherincreasesthesecurityandavailabilityofthewholegridcomputingsystem.3.Weproposeasuggestionofself-signedau

7、thorizationmechanismbasedoncommunityauthorizationservice,andgivetheauthorizationflowbasedonthetemporaryregistrationmechanismofproxycertificatedesignedabove.4.Weproposeacomprehensivetrustmodeltailoredforgridcomputingenvironme