基經(jīng)形模糊數(shù)的信息安全風(fēng)險(xiǎn)評(píng)估.pdf

1、南京師范大學(xué)碩士學(xué)位論文基經(jīng)形模糊數(shù)的信息安全風(fēng)險(xiǎn)評(píng)估姓名：吳葉科申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：數(shù)學(xué)；運(yùn)籌學(xué)與控制論指導(dǎo)教師：宋如順20110515AbstracttAbstractWiththerapiddevelopmentofcomputertechnologyandnetworktechnology。informationtechnologyiSwidelyusedinvariousindustriesBecauseoftheirow

2、nshortcomingsandtheopenendedofinformationsystemsconnectedwithnetworkenvironment，thedisclosureofsensitiveinformation，theoverflowofvirusesandthehackers，etc，informationsystemsfaceenormoussecurityrisksTherefore。assessmentoft

3、heexistinginformationsecurityriskhasacrucialroleOnlyeffectiveassessmentofsecurityrisksfacedbyinformationsystemscantakefulladvanmgeofinformationsystemsecuritystatus。andtargetedtotakesecuritymeasurestomakeinformationsecuri

4、tyriskscanbecontrolledintherangeInformationsecurityriskassessmentprovidesanimportantbasisfortheconstructionofsecurityinformationsystem，stabilityoperationsandtransformationThispaperresearchhowtoorganicallycombinethetrapez

5、oidalfuzzynumbertheoryanal【ytichierarchyprocess，andgroupdecisiontheoryandapplytoassesstheinformationsecurityriskinordertoimprovetheaccuracyandreliabilityofinformationsecurityriskassessmentAimingattheproblemoftheweighting

6、whenascertaininganalytichierarchyprocess，thetriangularfuzzynumberofriskassessmentmethodswaspopularized，thetrapezoidalfuzzynumbertheoryandanalytichierarchyprocesswascombinedandcomprehensiveinformationsystemsecurityriskass

7、essmentmethodbasedonthetrapezoidalfuzzyAHPwasproposedUsingthetrapezoidalfuzzynumbertoascertainingtheweighting，thenthestepsofcomprehensiveinformationsecurityriskassessmentbasedonthetrapezoidaIfuzzyAHParegivenindetailandac

8、ompanyinformationsystemsecurityriskassessment淞anexampleiSanalyzedInf0丌nationsystemsecurityriskassessmentprocessusuallyinvolvesanumberofevaluationexpertsororganizationsindividualstendtohaveanindependentassessmentofoneside

9、dconclusionsinordertoreducethedeviationoftheevaluationresultsagroupdecisionmakingforinformationsecurityriskassessmethodbasedontrapezoidalfuzzynumberwasproposedwiththeintroductionoftrapezoidalnumberintoinformationsystemse

10、curityriskassessmentFirstlythelanguageestimateinformationwastransfoIrmedtotrapezoidalfuzzynumberandthentheaggregationstepsofcollectivetrapezoidalfuzzynumbercomplementaryjudgmentmatrixaregiven，finallytherankingofallthread

11、sjudgedbytherelativeclosenessbetweenrisksandnegativeidealsolutionAnexampleiSgiventoiIlustratethepracticabilityandvalidityofthismethodKeywords：InformationsecurityRiskassessment，TrapezoidalfuzzynumberAnalytichierarchyproce