1、Y771212後旦大擎碩士學(xué)位論文學(xué)校代鸛：10246中號：022021210基于EAPSIM的無線城域網(wǎng)身份認證機制研究院系：專業(yè)：姓名：指導(dǎo)教師：完成日期：信息科學(xué)與工程學(xué)院計算機應(yīng)用技術(shù)黃哲曹義君教授2005年5月20口復(fù)旦大學(xué)碩士論文基于EAPSIM的無線城域網(wǎng)身份認證機制研究AbstractWiththerapiddevelopmentofcomputertechnologypeoplearebeingconnectedbya

2、llkindsofwireorwirelessnetworksWiMAX(WorldwideImeroperabilityforMicrowaveAccess)isarisingWirelessMetropolitanAreaNetwork(wMAN)technologyThecompatibilityandinteroperabilityofWiMAXisensuredby1EEE80216standardWiMAXwillconne

3、ctIEEE80211(wi—Fi)hotspotstotheIntemetandprovideawirelessextensiontocableandDSLforlastmilebroadbandaccessWiMAXprovidesupto50kmoflinearservicearearangeandallowsusersconnectivitywithoutadirectlineofsighttoabasestationThete

4、chnologyalsoprovidesshareddataratesupto70MbiffsBecauseofitswirelesscharacteristic，thesecurityofthenetworkisveryimportantItisnecessaryforWiMAXtoadoptastrongauthenticationmechanismSeveralauthenticationmethodsaresupportedde

5、pendingonthetypeofdifferentnetworkarchitecturesThispaperfocusesontheEAP—SIMaccessauthenticationmechanismofWiMAXEAPSIMisusedby2GoperatorswhentheyaccessthenetworkItspecifiesanExtensibleAuthenticationProtocol(EAP)mechanismf

6、orauthenticationandsessionkeydistributionusingtheGlobalSystemforMobileCommunications(GSM)SubscriberIdentityModule(SIM)TheEAP—SIMmechanismspecifiesenhancementstoSIMauthenticationandkeyagreementwherebymultipleauthenticatio

7、ntripletscanbecombinedtocreateauthenticationresponsesandsessionkeysofgreaterstrengththantheindividualGSMtripletsDependingontheWiMAXnetworkarchitecture，wedesigntheEAP—SIMauthenticationmechanisminWiMAX，InWiMAXuserauthentic

8、ationinformationisstoredonAAAserversoWANC(WiMAXAccessNetworkController)reliesonRadiusprotocolforinformationexchangeswiththeAAAserverWeanalyzeeachEAPSIMauthenticationprocedure(IdentityStart，Challenge，andSuccess)whenoperat