abstract key management in ip-based mobile and wireless networksnew

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1、KeyManagementinIP-BasedMobileandWirelessNetworksChin-ChihChangComputerScienceDepartmentWichitaStateUniversityWichita,KS67260-0083,U.S.A.AbstractOriginalIPIPTCPpackageheaderheaderDataMobileandwirelessnetworksposeanumberofchal-lengesinkeymanagementduetothelackofin-Transpo

2、rtIPIPsecTCPIPsecmodeheaderheaderheaderDatatrailerfrastructuressuchasrouting,server,andorganiza-tion/administrativeinfrastructures.Severalmecha-TunnelIPIPsecIPTCPIPsecnismshavebeenproposedtosolvetheproblemofkeymodeheaderheaderheaderheaderDatatrailermanagementinmobileand

3、wirelessnetworks.InthispaperwefocusonkeymanagementinIP-basedmobileFigure1.IPsecTransportandTunnelModelandwirelessnetworks.Wefirstdescribethebasiccon-ceptofkeymanagementanditschallengesandthensur-veythemechanismsthatarecurrentlyproposedtosolve•Authenticationisconcernedwit

4、hverifyingthethoseissues.Wefurtherpresentakeymanagementidentityofauser.architecturethatemploysIPSecurityPolicy(IPSP),addresstheimportanceofkeycontinuity,andprovide•Non-repudiationmeansthatthesendercannotoursuggestionsthatcanenhancethosekeymanagementdenyhavingsentamessag

5、eandtherecipientcan-mechanisms.notdenyhavereceivedthemessage.Keywords:keymanagement,IPsec,mobilenetwork,IPsecurity(IPsec)developedbyInternetEngineeringwirelessnetwork,networksecurity.TaskForce(IETF)isasuiteofprotocolsusedtose-curetrafficattheIPlayer[17,20].IPsecsupportsAu

6、-1IntroductionthenticationHeader(AH)[15]andEncapsulatingSe-curityPayload(ESP)[16]inthetransportortunnelTheadventoflaptops,personaldigitalassistantsmode[17]asshowninFigure1.Thetransportmode(PDAs),cellularphones,andvariousmobiledeviceshasisusuallyusedforhosttohostsecurity

7、whilethetun-mademobileandwirelesscomputinginevitable.ThenelmodeisusedbetweengatewaystobuildavirtualTCP/IPprotocolsuitethatformsthebasisoftheIn-privatenetwork(VPN).IPSecisbasedonSecurityAs-ternetallowsheterogenouscomputingdevicestocom-sociations(SAs).Asecurityassociation

8、isasimplexmunicatewitheachother.IP-basednetworksareprolif-connectionwhosetrafficisprotectedbysecurityserviceerat