scyther/protocols/misc/athena-breaker.spdl

/* 
 * Athena breaker protocol
 */

// PKI infrastructure

const pk: Function;
secret sk: Function;
inversekeys (pk,sk);

// The protocol description

protocol abreaker(I,R)
{
	role I
	{
		fresh ni: Nonce;

		send_!1(I,R, {{I,ni}pk(R)}pk(R) );

		claim_i1(I,Secret,ni);
	}	
	
	role R
	{
		var T:Ticket;

		read_!1(I,R, {T}pk(R) );
		send_!2(R,I, T );

	}
}

// The agents in the system


// An untrusted agent, with leaked information