入侵檢測引擎的設計研究.pdf

1、浙江大學碩士學位論文入侵檢測引擎的設計研究姓名：何一凡申請學位級別：碩士專業(yè)：電路與系統(tǒng)指導教師：沈海斌20060501AbstracthltnlsionDetectionsystem(IDs)actsastheseoondlineofdefenceafterthetraditionalfirewallAsapowefful，dyn鋤icandrealtiInedetectionsystcm，itisdfawiIlgmoreandmor

2、eanemiontllesedaysPattem—MatcllingisthebasicandpiVotaltechIIiqueinIDS，andpmccssingspeedofPanem—MatchjngEn酉ne(PME)mailllydeddesthepe—0m趾ceofthcwholeintmsiondetectionsystemAfteranalyzingthestmctureofIDS，asweUasallkindsofso

3、ftwa觥Iardwaresolutionsforfastpattemmatching，MoPMEs，whicharebasedonCAMandTCAM，arcproposed(1)Patt鋤一matchingen舀ncusinggmupjngo蝴；(2)Pipeljnedpattern—matchingengine1nle6rstPME，pattemmatchingen舀ncusjnggroupingcAM，isauniversalo

4、neBesidcSttle1DSrules，italsofitspattem—matchingform柚yvimslibmriesnisen舀nesuppons“”wildc盯d，“noc雒e”keyword(meanse“hcfanuppcrcaseoralowercaseisconsideredValid)，aIIdlong—pattem∞mprcssionPayloadsw“曲illg鋤dmodelleVelpafalleltec

5、hniquesarcalsointroducedintottliseⅡ舀ⅡetoimpmvethetlImughputThepipelinedpattem—maIchingen酉nehasevenbettcrpedo珊眥eT1lememofy—censharemethodfeducesmorethan50％CAMcost，whichfixedthepmblemthatareaandpowerc0ⅡsumptioⅡof(AMarcu蛐al

6、lytoohi班T1lesetwoPMEsc柚bothreachmulti—gigabitthrou曲put，whichcanmeettherequirementofhiglI—speedinnllsiondctectioninthcne柳orkbelow10Gbj怕T11eessaypmposed，illmefollowingsectiOn，apattem—matchingsystembasedonthesePMEs，andjⅡtmd

7、ucedttlesystemarchitecture，busstnldurc，dataintedace，alldetcnemOstwidely—usedSnonmlesareanalyzedinthisessayImplementationOfSnonusingthepmposedPMEsisalsodiscIIssedMoreover’proto∞la腿lysis柚dpacketheadclassificationtcchniques