scyther/testing/tmn-Gijs.spdl

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usertype Key;
const pk: Function;
secret sk: Function;
inversekeys(pk,sk);
protocol tmn(A,B,S)
{
role A
{
fresh Ka: Key;
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var Kb: Key;
send_1(A,S, B,{Ka}pk(S) );
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recv_4(S,A, B,{Kb}Ka );
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#claim_5(A,Secret,Ka);
#claim_8(A,Secret,Kb);
}
role B
{
fresh Kb: Key;
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recv_2(S,B, A );
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send_3(B,S, A, { Kb }pk(S) );
claim_6(B,Secret,Kb);
}
role S
{
var Ka,Kb: Key;
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recv_1(A,S, B,{Ka}pk(S) );
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send_2(S,B, A );
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recv_3(B,S, A, { Kb }pk(S) );
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send_4(S,A, B,{Kb}Ka );
#claim_7(S,Secret,Ka);
}
}
const Alice,Bob,Eve,Simon: Agent;
const Ke: Key;
# Scenario to recreate an attack in SPORE