- SPORE moved into gui directory by default.

gui/Protocols/kaochow-v2.spdl

@@ -0,0 +1,93 @@
+# Kao Chow Authentication v.2
+#
+# Modelled after the description in the SPORE library
+# http://www.lsv.ens-cachan.fr/spore/kaoChow2.html
+#
+
+usertype SessionKey;
+secret k: Function;
+const Fresh: Function;
+const Compromised: Function;
+
+protocol kaochow-2^KeyCompromise(C)
+{
+    // Read the names of 3 agents and disclose a session between them including
+    // corresponding session key to simulate key compromise
+    role C {
+        const Ni,Nr: Nonce;
+        const Kir,Kt: SessionKey;
+        var I,R,S: Agent;
+
+        read_!C1(C,C,    I,R,S);
+        send_!C2(C,C,    (I,R,Ni),
+                        {I,R,Ni,Kir,Kt}k(I,S),
+                        {I,R,Ni,Kir,Kt}k(R,S),
+                        R, Nr,
+                        {Nr,Kir}Kt,
+                        Kir
+         //               Kt
+               );
+        claim_C3(C,Empty, (Compromised,Kir));
+        // claim_C4(C,Empty, (Compromised,Kt));
+    }
+}
+
+protocol kaochow-2(I,R,S)
+{
+    role I
+    {
+        const ni: Nonce;
+        var nr: Nonce;
+        var kir,kt: SessionKey;
+
+        send_1 (I,S, I,R,ni);
+        read_3 (R,I, R, {I,R,ni,kir,kt}k(I,S), {ni, kir}kt, nr );
+        send_4 (I,R, {nr,kir}kt );
+
+        claim_I1 (I, Nisynch);
+        claim_I2 (I, Niagree);
+        claim_I3 (I, Secret, kir);
+        claim_I4 (I, Empty, (Fresh,kir));
+    }    
+    
+    role R
+    {
+        var ni: Nonce;
+        const nr: Nonce;
+        var kir,kt: SessionKey;
+        var T: Ticket;
+
+        read_2 (S,R, T, { I,R,ni,kir,kt }k(R,S)  ); 
+        send_3 (R,I, R, T, {ni, kir}kt, nr );
+        read_4 (I,R, {nr,kir}kt );
+
+        claim_R1 (R, Nisynch);
+        claim_R2 (R, Niagree);
+        claim_R3 (R, Secret, kir);
+        claim_R4 (R, Empty, (Fresh,kir));
+    }
+
+    role S
+    {
+        var ni: Nonce;
+        const kir, kt: SessionKey;
+
+        read_1 (I,S, I,R,ni);
+        send_2 (S,R, {I,R,ni,kir,kt}k(I,S), { I,R,ni,kir,kt }k(R,S)  ); 
+    }
+}
+
+const Alice,Bob,Simon,Eve: Agent;
+
+untrusted Eve;
+const ne: Nonce;
+const te: Ticket;
+const ke: SessionKey;
+compromised k(Eve,Eve);
+compromised k(Eve,Alice);
+compromised k(Eve,Bob);
+compromised k(Eve,Simon);
+compromised k(Alice,Eve);
+compromised k(Bob,Eve);
+compromised k(Simon,Eve);
+