scyther/spdl/ns3.spdl
2004-08-27 19:08:31 +00:00

40 lines
588 B
Plaintext

const pk: Function;
secret sk: Function;
inversekeys (pk,sk);
protocol ns3(I,R)
{
role I
{
const ni: Nonce;
var nr: Nonce;
send_1(I,R, {I,ni}pk(R) );
read_2(R,I, {ni,nr}pk(I) );
send_3(I,R, {nr}pk(R) );
claim_4(I,Secret,ni,nr);
claim_6(I,Nisynch);
}
role R
{
var ni: Nonce;
const nr: Nonce;
read_1(I,R, {I,ni}pk(R) );
send_2(R,I, {ni,nr}pk(I) );
read_3(I,R, {nr}pk(R) );
claim_5(R,Secret,ni,nr);
claim_7(R,Nisynch);
}
}
const Alice,Bob,Eve: Agent;
untrusted Eve;
const nc: Nonce;
compromised sk(Eve);
run ns3.I(Alice,Eve);
run ns3.R(Alice,Bob);