EAP-PSK a simple symmetric key EAP method

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1、EAP-PSK:asimplesymmetrickeyEAPmethodIETF59–Seoul,KoreaMarch2004EAP-PSK:providingasimple&securesymmetrickeyEAPmethodEAP-PSKreliesonsymmetriccryptographyandusesAES-128asitssoleprimitiveEAP-PSKisdesigned(asmostcontemporaryEAPmethods)withWLANsinmindEAP-PSKiscurrently

2、beingimplementedandimplementationsourcewillbereleasedEAP-PSKshouldbematurebynextIETF(July2004)IntentistorequestpublicationasInformationalalthoughStandardstrackcouldbeanoptionEAP-PSKisapropositionmadetogathermomentumforthe(quick)designofasinglepre-sharedkeyEAPmeth

3、odEAP-PSKoverviewAnyfeedbackwelcome!FlorentBersani,FranceTelecomR&Dflorent.bersani@francetelecom.comBackupslidesEAP-PSKdesigngoalsSimplicity:Itshouldbeeasytoimplementandtodeploywithoutanypre-existinginfrastructure.Wideapplicability:Itshouldbepossibletousethismeth

4、odtoauthenticateoveranynetwork.Inparticular,itshouldbesuitablefor[IEEE802.11]wirelessLANsandcomplyto[IEEE802REQ]Security:ItshouldbeconservativeinitscryptographicdesignandenjoysecurityproofsExtensibility:Itshouldbepossibletoaddtothismethodtherequiredextensionsasth

5、eirneedappearsPatent-avoidance:ItshouldbefreeofanyIntellectualPropertyRightclaimsEAP-PSKrelatedworkEAP-Archie:veryclosebutEAP-Archiewillnotbefurtherdeveloped*EAP-SKE:ongoingefforttomerge(possibleproblem:patentencumbranceofEAP-SKE)LEAP:securityflawsEAP-FAST:lessli

6、ghtweight(tunneling,…)…Source:JesseWalker&RussHousley,personalcommunication,2004EAP-PSKserverstatemachineOMAC1Source:[OMAC],Figure2MAP1Source:[EAKD],Figure2TheModifiedcountermodeofoperationSource:[SOBMO],Figure3TheEAXmodeofoperationSource:[EAX],Figure3Referencesh

7、ttp://eappsk.chez.tiscali.fr/draft-bersani-eap-psk-01.txthttp://www.arkko.com/publications/eap/draft-bersani-eap-psk-01.txtPleaserefertodraft-bersani-eap-psk-01.txtavailableat: