70 lines
1.4 KiB
Plaintext
70 lines
1.4 KiB
Plaintext
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/*
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* Modeled from ISO standard
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*
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* signature
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* ttp
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* five-pass
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* mutual
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*
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* A initiates and also communicates with T
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*
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* parameters:
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*
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* NAME
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* IA
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* IB
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* ResA
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* ResB
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* TokenAB
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* TokenBA (although identical in both cases)
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* TokenTA
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*
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*/
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protocol isoiec-9798-3-6-1(A,B,T)
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{
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role A
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{
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fresh Ra,Rpa: Nonce;
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fresh Text1,Text4,Text8,Text9: Ticket;
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var Rb: Nonce;
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var Text2,Text3;
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var Text5,Text6,Text7: Ticket;
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send_1(A,B, Ra,A,Text1);
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recv_2(B,A, B,Ra,Rb,Text3,{B,Ra,Rb,A,Text2}sk(B));
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send_3(A,T, Rpa,Rb,A,B,Text4);
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recv_4(T,A, Text7,A,pk(A),B,pk(B),{Rpa,B,pk(B),Text6}sk(T),{Rb,A,pk(A),Text5}sk(T));
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claim(A,Running,B,Ra,Rb,Text8);
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send_5(A,B, Text9,A,pk(A),{Rb,A,pk(A),Text5}sk(T),{Rb,Ra,B,A,Text8}sk(A));
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claim(A,Commit,B,Ra,Rb,Text2);
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claim(A,Alive);
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}
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role B
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{
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var Ra,Rpa: Nonce;
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var Text1,Text5,Text8,Text9: Ticket;
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fresh Text2,Text3,Text4: Ticket;
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fresh Rb: Nonce;
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recv_1(A,B, Ra,A,Text1);
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claim(B,Running,A,Ra,Rb,Text2);
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send_2(B,A, B,Ra,Rb,Text3,{B,Ra,Rb,A,Text2}sk(B));
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recv_5(A,B, Text9,A,pk(A),{Rb,A,pk(A),Text5}sk(T),{Rb,Ra,B,A,Text8}sk(A));
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claim(B,Commit,A,Ra,Rb,Text8);
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claim(B,Alive);
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}
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role T
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{
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var Rpa, Rb: Nonce;
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var Text4: Ticket;
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fresh Text5,Text6,Text7: Ticket;
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recv_3(A,T, Rpa,Rb,A,B,Text4);
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send_4(T,A, Text7,A,pk(A),B,pk(B),{Rpa,B,pk(B),Text6}sk(T),{Rb,A,pk(A),Text5}sk(T));
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}
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}
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