scyther/protocols/misc/andrew-ban.spdl

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2006-11-21 13:40:50 +00:00
usertype SessionKey;
secret k: Function;
protocol andrewBan(I,R)
{
role I
{
const ni: Nonce;
var nr,nr2: Nonce;
var kir: SessionKey;
send_1(I,R, I,{ni}k(I,R) );
read_2(R,I, {ni,nr}k(I,R) );
send_3(I,R, {nr}k(I,R) );
read_4(R,I, {kir,nr2,ni}k(I,R) );
claim_5(I,Nisynch);
claim_5b(I,Niagree);
claim_6(I,Secret, kir);
claim_7(I,Secret, k(I,R));
}
role R
{
var ni: Nonce;
const nr,nr2: Nonce;
const kir: SessionKey;
read_1(I,R, I,{ni}k(I,R) );
send_2(R,I, {ni,nr}k(I,R) );
read_3(I,R, {nr}k(I,R) );
send_4(R,I, {kir,nr2,ni}k(I,R) );
claim_8(R,Nisynch);
claim_8b(R,Niagree);
claim_9(R,Secret, kir);
claim_10(R,Secret, k(I,R));
}
}
const Alice,Bob,Eve: Agent;
untrusted Eve;
const ne: Nonce;
const kee: SessionKey;
compromised k(Eve,Eve);
compromised k(Eve,Alice);
compromised k(Eve,Bob);
compromised k(Alice,Eve);
compromised k(Bob,Eve);
run andrewBan.I(Agent,Agent);
run andrewBan.R(Agent,Agent);
run andrewBan.I(Agent,Agent);
run andrewBan.R(Agent,Agent);