scyther/spdl/tmn.spdl

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2004-02-20 11:37:28 +00:00
const pk: Function;
secret sk: Function;
inversekeys(pk,sk);
protocol tmn(A,B,S)
{
role A
{
const Ka: Key;
var Kb: Key;
send_1(A,S, B,{Ka}pk(S) );
read_4(S,A, B,{Kb}Ka );
claim(A,Ka,Kb);
}
role B
{
const Kb: Key;
read_2(S,B, A );
send_3(B,S, A, { Kb }pk(S) );
claim(B,Kb);
}
role S
{
var Ka,Kb: Key;
read_1(A,S, B,{Ka}pk(S) );
send_2(S,B, A );
read_3(B,S, A, { Kb }pk(S) );
send_4(S,A, B,{Kb}Ka );
//claim(S,Ka);
}
}
const Alice,Bob,Eve: Agent;
const Simon: Server;
untrusted Eve;
compromised sk(Eve);
run tmn.A (Agent,Agent,Simon);
run tmn.A (Agent,Agent,Simon);
run tmn.B (Agent,Agent,Simon);
run tmn.B (Agent,Agent,Simon);
run tmn.S (Agent,Agent,Simon);
run tmn.S (Agent,Agent,Simon);