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1、申请硕士学位论文IHOS-63数据保护方案的安全性分析及改进学校：上海交通大学系别：信息安全工程学院学科专业：密码学研究生：周晶学号：1050369062导师：陈恭亮（教授）上海交通大学信息安全工程学院二零零八年一月SecurityAnalysisandImprovementforIHOS-63DataProtectionSchemeABSTRACTTraditionalpapernavigationalchartwhichhasbeenusedforseveralyearswillbereplacedwithElectronicN
2、avigationalChart(ENC)alongwiththearrivalofinformation-basedages.InternationalcommunityextremelyvaluesENCanditsapplicationsystems(ECDISetc.),InternationalHydrographicOrganization(IHO)andrelatedinternationalorganizationmakelotsofspecificationswhileENCisrising.Inordertopr
3、otectENCtoavoidanunauthorizedreplication,toinsureitssourcereliabilityandthedataintegrityinthemeantime,IHOdrewupandpromulgatedDataProtectionScheme(SpecialPublicationNo.63).ThisschemeisbasedonthePRIMARprotectionscheme,adoptBlowfishalgorithmtoencrypt,useHashfunction(SHA-1
4、)andCyclicRedundancyChecktomakesurethedataintegrity,andadoptDSAsignature.ThisthesismakesanintegrateanalysisofIHOS-63DataProtectionSchemefirstly,laysemphasisonanalysisoftheparticipant'sresponsibilityandauthorization,alsogivesaparticularsummaryoneachmoduleinthisscheme.Se
5、condlythethesisdoessecurityanalysisfromthedataconfidentiality,integrity,authenticationandnon-repudiationrespectively.Thereareseveralimprovementsintheendofthesistomaketheschememoresafety.Forwardsecuritydigitalsignatureimprovementcouldreducetheimpactofkeyleakiness:Whenth
6、ekeyleakspassively,theattackercouldnotforgepreviousperiodsignatureofinformation.Whenthekeyleaks-II-actively,theDataServerandSchemeAdministratorcouldnotdenytheoriginalsignature;aftercellkeyalgorithmimprovement,DataClientdonotneedsubmituserpermitfrequentlyfromDataServert
7、ogetcellpermit,althoughENCinformationisupdatedmuchmorefrequently;Wecouldgetmuchmorerandomciphertextfromrandomfilling;WealsomakesanimprovementforM_KEYissue.KEYWORDS:ElectronicNavigationalChart,Blowfish,DSA,DataIntegrity,ForwardSecurity-III-目录第一章绪论.......................
8、....................................11.1背景介绍........................................................11.2研究内容和主要成果....
