scyther/gui/Protocols/ISO-9798/isoiec-9798-3-5.spdl

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2012-11-15 11:10:06 +00:00
/*
* Modeled from ISO/IEC 9798
* Modeler: Cas Cremers, Dec. 2010
*
* signature
* two-pass
* mutual
* parallel
*/
const Cert: Function;
protocol isoiec-9798-3-5(A,B)
{
role A
{
fresh RA: Nonce;
var RB: Nonce;
fresh Text1,Text3,Text4: Ticket;
var Text2,Text5,Text6: Ticket;
send_1(A,B, Cert(A), RA,Text1 );
recv_2(B,A, Cert(B), RB,Text2 );
recv_3(B,A, RB,RA,A,Text6, { RB, RA, A, Text5 }sk(B) );
claim(A,Running,B,RA,RB,Text3,Text5);
send_4(A,B, RA,RB,B,Text4, { RA, RB, B, Text3 }sk(A) );
claim(A,Commit,B,RA,RB,Text5);
claim(A,Alive);
claim(A,Weakagree);
}
role B
{
var RA: Nonce;
fresh RB: Nonce;
var Text1,Text3,Text4: Ticket;
fresh Text2,Text5,Text6: Ticket;
recv_1(A,B, Cert(A), RA,Text1 );
send_2(B,A, Cert(B), RB,Text2 );
claim(B,Running,A,RA,RB,Text5);
send_3(B,A, RB,RA,A,Text6, { RB, RA, A, Text5 }sk(B) );
recv_4(A,B, RA,RB,B,Text4, { RA, RB, B, Text3 }sk(A) );
claim(B,Commit,A,RA,RB,Text3,Text5);
claim(B,Alive);
claim(B,Weakagree);
}
}