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

protocol nsl3rep(I,R)
{
	role I
	{
		fresh ni: Nonce;
		var nr: Nonce;

		send_1(I,R, {I,ni}pk(R) );
		send_6(I,R, {I,ni}pk(R) );
		recv_2(R,I, {ni,nr,R}pk(I) );
		send_3(I,R, {nr}pk(R) );
		claim_4(I,Niagree);
		claim_7(I,Nisynch);
	}	
	
	role R
	{
		var ni: Nonce;
		fresh nr: Nonce;

		recv_1(I,R, {I,ni}pk(R) );
		recv_6(I,R, {I,ni}pk(R) );
		send_2(R,I, {ni,nr,R}pk(I) );
		recv_3(I,R, {nr}pk(R) );
		claim_5(R,Niagree);
		claim_8(R,Nisynch);
	}
}