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