Kerberos 4/6

• 1) C ---> AS : U,TGS,L1,N1

• 2) AS ---> C : U,Tc,tgs,{TGS,K,Tstart,Texpire,N1}Ku

• 3) C ---> TGS : S,L2,N2,Tc,tgs,Ac,tgs

• 4) TGS ---> C : U,Tc,s,{S,K',T'start,T'expire,N2}K

• 5) C ---> S : Tc,s,Ac,s

• 6) S ---> C : {T'}K'

• Tc,tgs = {U,C,TGS,K,Tstart,Texpire}Ktgs Ac,tgs = {C,T}K

• Tc,s = {U,C,S,K',T'start,T'expire}Ks Ac,s = {C,T'}K'

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