基于动态ID的远程用户身份认证方案的改进(王艳艳,刘嘉勇,但静)

1672-2892(2008)01-0071-04ID(610064)TP393.08A(610064)1981Lamport[1]2000Hwang[2][3-6]2004Das,SaxenaGulatiID[7][8][8]111.1UiSa)UiSpwib)S()()iiNhpwhx=⊕xSc)S[h(·),Ni,y]yd)S⇒Uipwi2007-07-162007-08-291Table1CodedefinitioncodedefinitionUtheuserpwthepasswordofUIDtheidentityofUStheremoteserverh(.)asecureandone-wayhashfunctionthebitwiseXORoperation⇒asecurechannel→acommonchannel1.2pwia)ID()()iiiCIDhpwhNyT=⊕⊕⊕Tb)(())iiiBhCIDhpw=⊕c)()iiiChTNBy=⊕⊕⊕d):,,,iiiiUSCIDNCT→1.3T*(CIDi,Ni,Ci,T)a)TTTb)()()iiihpwCIDhNyT′=⊕⊕⊕c)(())iiiBhCIDhpw′=⊕d)()iiiChTNBy′=⊕⊕⊕Ci1.4pwipwnewnew()()iiiNNhpwhpw∗=⊕⊕2pwa)()()iiCIDhpwhNyT=⊕⊕⊕Tb)(())(())iiiBhCIDhpwhhNyT=⊕⊕⊕c)()((()))iiiiiChTNByhTNyhhTNy=⊕⊕⊕⊕⊕⊕⊕⊕(CIDi,Ni,Ci,T)d)()()iiihpwCIDhNyT′=⊕⊕⊕e)(())(())(())iiiiiiBhCIDhpwhCIDCIDhNyThhNyT′′=⊕⊕⊕⊕⊕=⊕⊕f)()((()))iiiiiChTNyBhTNyhhTNy′′=⊕⊕⊕⊕⊕⊕⊕⊕iC′Cipw[8]3IDNi4ID3.1UiSa)UiSIDib)S()()iiiNhpwhxID=⊕⊕pwixc)S[h(·),Ni,y]yd)SiU⇒pwi3.2IDipwia)()()iiiiCIDhpwhNyTID=⊕⊕⊕⊕Tb)SiU→IDi,CIDi,Ni,T3.31)T′(IDi,CIDi,Ni,T)a)T′TTb)()()iiiihpwCIDhNyTID′=⊕⊕⊕⊕c)()()iiiIDNhxhpw′′=⊕⊕iID′IDib)()ihpw′(())iahhpwyT′′′=⊕⊕d):(,)iSUaT′′→2)T*a,T′′T*T′T(())iahhpwyT′=⊕⊕a′aSUi3.4()44.1pwh(x)()()iiIDNhxhpw′′=⊕⊕iID′IDiBiCi4.212a′4.35DasDas()()()()()()(1983)Email:[e-mail].(1962).(1983).(67)(1981)Email:[e-mail](1961)(1982)