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一种新的基于ECC的Adhoc组密钥协商协议.docx

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一种新的基于ECC的Adhoc组密钥协商协议 Abstract Adhocgroupkeyagreementprotocolisusedtoprovidesecurecommunicationamongthegroupmemberswherethegroupisformeddynamically.Inthispaper,weproposeanewellipticcurvecryptography(ECC)basedadhocgroupkeyagreementprotocol.Theproposedprotocolensuresgroupkeyestablishment,confidentiality,authentication,andforwardsecrecy.Theproposedprotocoloutperformsexistingprotocolsintermsofsecurity,communicationoverhead,andcomputationcomplexity.Thesimulationresultsshowthattheproposedprotocolprovidesasecureandefficientmechanismforadhocgroupcommunication. Introduction Adhocnetworksareformeddynamicallyforcommunicationamongthedeviceswithoutacentralizednetworkinfrastructure.Theadhocnetworksarewidelyusedinmilitarymissions,emergencyresponse,anddisastermanagement.Inadhocnetworks,groupcommunicationisanessentialrequirement,andsecuregroupcommunicationisachallengingtaskduetothedynamicnatureofthegroupformation.Adhocgroupkeyagreementprotocolisusedtoprovidesecurecommunicationamongthegroupmembers.Inthispaper,weproposeanewellipticcurvecryptography(ECC)basedadhocgroupkeyagreementprotocol. Existingadhocgroupkeyagreementprotocolssufferfromsecurityvulnerabilities,communicationoverhead,andcomputationcomplexity.Thesecurityvulnerabilitiesinexistingprotocolsareexploitedbyattackerstostealthegroupkey,eavesdropthecommunication,andlaunchthedenialofserviceattacks.Thecommunicationoverheadinexistingprotocolsincreaseswiththegroupsize,andthecomputationcomplexityincreaseswiththekeysize.Therefore,itisessentialtodesignaprotocolthatprovidesasecureandefficientmechanismforadhocgroupcommunication. Proposedprotocol Theproposedprotocolisdesignedtoprovidegroupkeyestablishment,confidentiality,authentication,andforwardsecrecy.Theprotocolusestheellipticcurvecryptographyforpublickeyencryption,digitalsignature,andkeyagreement.Theprotocolconsistsofthefollowingsteps: Step1:Groupformation Thegroupformationisinitiatedbythegroupowner.Thegroupownergeneratesagroupidentifier(GID)andagroupownerprivatekey(GOPK)usingtheECCal