scyther/spdl/misc/woolam-ce.spdl
2006-11-21 13:40:50 +00:00

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usertype Server, SessionKey, Token, SymmetricKey;
secret k: Function;
const Alice, Bob, Charlie, Eve: Agent;
const Simon: Server;
/* give the intruder something to work with */
const ne: Nonce;
const ke: SessionKey;
untrusted Eve;
compromised k(Eve,Simon);
const authToken: Token;
protocol woolamce(A,B,S)
{
role B
{
var Na: Nonce;
const Nb: Nonce;
var Kab: SessionKey;
var Kas : SymmetricKey;
read_1(A,B, A,Na);
send_2(B,A, B,Nb);
read_3(A,B, { A,(B,(Na,Nb)) }Kas );
send_4(B,S, { A,(B,(Na,Nb)) }Kas, { A,(B,(Na,Nb)) }k(B,S) );
read_5(S,B, { B,(Na,(Nb,Kab)) }Kas, { A,(Na,(Nb,Kab)) }k(B,S) );
send_6(B,A, { B,(Na,(Nb,Kab)) }Kas, { Na,Nb }Kab );
read_7(A,B, { Nb }Kab );
claim_8(B,Secret,authToken);
}
}
run woolamce.B(Agent,Agent,Simon);
run woolamce.B(Agent,Agent,Simon);