密碼編碼與計算理論實驗室 A New RFID Protocol with Strong Security and Privacy.ppt
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1、密碼編碼與計算理論實驗室 A New RFID Protocol with Strong Security and Privacy Still waters run deep.流静水深流静水深,人静心深人静心深 Where there is life,there is hope。有生命必有希望。有生命必有希望密碼編碼與計算理論實驗室OutlinelIntroductionlRFID Security and PrivacylRelated WorklOur ProtocollAnalysislConclusion2WHAT IS RFID?Radio Frequency Identificat
2、ion Tag3CCCLAB 國立台北大學密碼編碼與計算理論研究室RFID APPLICATIONS4CCCLAB 國立台北大學密碼編碼與計算理論研究室Identify friend or foe(1942)Event ticketingCar keysPublic transportticketingElectronicpassportSupply chainmanagementRFID PowderAccess controlAnti-theftROLES OF RFID APPLICATIONS5CCCLAB 國立台北大學密碼編碼與計算理論研究室TagsReaderServer(Data
3、base)Secure channelRFID POWERlPassive(this is what mostly used now)Tags are inactive until the readers interrogation signal“wakes”them upCheap,but short range onlylSemi-passiveOn-board battery,but cannot initiate communicationlCan serve as sensors,collect information from environment:for example,“sm
4、art dust”for military applicationsMore expensive,longer rangelActiveOn-board battery,can initiate communication6CCCLAB 國立台北大學密碼編碼與計算理論研究室RFID SECURITYlRFID=Radio Frequency IdentificationlMore properly authentication7CCCLAB 國立台北大學密碼編碼與計算理論研究室 Common RFID Attacks1.Replay attack2.Man-in-the-middle atta
5、ck3.Spoofing attack RFID TRACKING ATTACKlUsed for identificationlAnti-collision phase sends uidAttacker can recognize people based on the RFID tags they are carryingAttacker could trace RFID enabled packages8CCCLAB 國立台北大學密碼編碼與計算理論研究室Tracking vehicleTracking goodsTracking people密碼編碼與計算理論實驗室Privacy re
6、quirementlTracking Attack9密碼編碼與計算理論實驗室Security requirementlMutual AuthenticationlReplay AttacklForward SecuritylDesynchronization10Ownership Transfer密碼編碼與計算理論實驗室11OSK Scheme密碼編碼與計算理論實驗室12DatabaseSearch IDTag Saved DataSaved DataReaderProtocolPrivacySecurityApplicationDatabase Search timeTAMARADesFSO
7、TO()OSKProtocol of Dimitriou密碼編碼與計算理論實驗室13DatabaseSearch IDUpdate H2(TKID)=TKIDTagCheckUpdate H2(TKID)=TKID Saved DataSaved DataReaderProtocolPrivacySecurityApplicationDatabase Search timeTAMARADesFSOTO(n)DimitriouC2 Protocol密碼編碼與計算理論實驗室14DatabaseSearch IDUpdate H2(TKID)=TKIDTagCheckUpdate H2(TKID)=
8、TKID Saved DataSaved DataReaderProtocolPrivacySecurityApplicationDatabase Search timeTAMARADesFSOTO(n)C2密碼編碼與計算理論實驗室Osaka Protocol(1/6)15DatabaseNew kUpdate kSaved DataID,k,fk(ID)ReaderTagH(fk(ID)NR)fk(ID)fk(ID)fk(ID)=fk(ID)Update fk(ID)Saved Datafk(ID)query,NRH(fk(ID)NR)H(fk(ID)NR),NRInfo(ID)fk(ID)
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