- Add session compromise to all protocols that establish a session key

spdl/SPORE/needham-schroeder-sk-amend.spdl

@@ -20,6 +20,30 @@ const dec,inc: Function;
 inversekeys(dec,inc);
 usertype SessionKey;
 const Fresh: Function;
+const Compromised: Function;
+
+protocol needhamschroederskamendSessionKeyCompromise(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: SessionKey;
+        var I,R,S: Agent;
+
+        read_C1(C,C,    I,R,S);
+        send_C2(C,C,    I,
+                        {I,Nr}k(R,S),
+                        I,R,Ni,{I,Nr}k(R,S),
+                        {Ni,R,Kir,{Kir,Nr,I}k(R,S)}k(I,S),
+                        {Kir,Nr,I}k(R,S),
+                        {Nr}Kir,
+                        {{Nr}dec}Kir,
+                        Kir
+               );
+        claim_C3(C,Empty, (Compromised,Kir));
+    }
+}
 
 protocol needhamschroederskamend(I,R,S)
 {