Added IKE base models.

Modelers: Adrian Kyburz and Cas Cremers
2012-11-15 11:48:14 +01:00
parent 5918bf1a3c
commit 34d7cba293
59 changed files with 6156 additions and 0 deletions
--- a/gui/Protocols/IKE/ikev1-quick-noid.cpp
+++ b/gui/Protocols/IKE/ikev1-quick-noid.cpp
@@ -0,0 +1,102 @@
+/**********************************************************************
+ * @protocol	Internet Key Exchange Protocol (IKEv1)                 
+ * @reference	RFC 2409,                                              
+ *				Boyd C. and Mathuria A., Protocols for Authentication  
+ *				and Key Agreement                                      
+ * @variant		Quick mode (pfs), without optional identities          
+ **********************************************************************/
+
+/**
+ * MACRO DEFINITIONS
+ * Needs preprocessing by cpp before fed to scyther
+ */
+
+#define __IKEV1_QUICK__
+#ifndef __ORACLE__
+#include "common.h"
+#endif
+
+/* k(I,R)=k(R,I) equal Ka from the spec */
+#define HASH1i prf(k(I,R), mid, list, Ni, g(i))
+#define HASH1r prf(k(R,I), mid, list, Ni, Gi)
+#define HASH2i prf(k(I,R), mid, Ni, algo, Nr, Gr)
+#define HASH2r prf(k(R,I), mid, Ni, algo, Nr, g(r))
+#define HASH3i prf(k(I,R), mid, Ni, Nr)
+#define HASH3r prf(k(R,I), mid, Ni, Nr)
+
+usertype String;
+const list, algo: String;
+
+/**
+ * This role serves as an "oracle" to ensure the executability of the 
+ * protocol by taking care of the problems that arise from our way of 
+ * modelling k(I,R) = k(R,I).
+ */
+protocol @executability(O) {
+#define Gi g(i)
+#define Gr g(r)
+	role O {
+		var mid, i, r, Ni, Nr: Nonce;
+		var I, R: Agent;
+
+		// msg 1
+		recv_!O1( O, O, {HASH1i, list, Ni, g(i)}k(I,R) );
+		send_!O2( O, O, {HASH1r, list, Ni, Gi}k(R,I) );
+
+		// msg 2
+		recv_!O3( O, O, {HASH2r, algo, Nr, g(r)}k(R,I) );
+		send_!O4( O, O, {HASH2i, algo, Nr, Gr}k(I,R) );
+
+		// msg 3
+		recv_!O5( O, O, {HASH3i}k(I,R) );
+		send_!O6( O, O, {HASH3r}k(R,I) );
+
+	}
+#undef Gi
+#undef Gr
+}
+
+
+protocol ikev1-quick-noid(I, R)
+{
+	role I {
+		fresh i, Ni, Ci, mid:	Nonce;
+		var   Nr, Cr:			Nonce;
+		var   Gr:				Ticket;
+
+		send_!1( I, R, mid, {HASH1i, list, Ni, g(i)}k(I,R) );
+		recv_!2( R, I, mid, {HASH2i, algo, Nr, Gr}k(I,R) );
+		claim( I, Running, R, Ni, Nr, g(i), Gr );
+		send_!3( I, R, mid, {HASH3i}k(I,R) );
+
+		/* SECURITY CLAIMS */
+		claim( I, SKR, SKi );
+
+		claim( I, Alive );
+		claim( I, Weakagree );
+		claim( I, Commit, R, Ni, Nr, g(i), Gr );
+				
+	}
+
+	role R {
+		fresh  r, Nr, Cr:	Nonce;
+		var    Ni, Ci, mid:	Nonce;
+		var    Gi:			Ticket;
+
+		recv_!1( I, R, mid, {HASH1r, list, Ni, Gi}k(R,I) );
+		claim( R, Running, I, Ni, Nr, Gi, g(r) );
+		send_!2( R, I, mid, {HASH2r, algo, Nr, g(r)}k(R,I) );
+		recv_!3( I, R, mid, {HASH3r}k(R,I) );
+
+
+		/* SECURITY CLAIMS */
+		claim( R, SKR, SKr );
+
+		claim( R, Alive );
+		claim( R, Weakagree );
+		claim( R, Commit, I, Ni, Nr, Gi, g(r) );
+				
+	}
+}
+// TODO: Incorporate into various phase 1 protocols (see spec for adaptions)
+// NOTE: If incorporated in phase 1, make sure to model with and without optional identities in msg 2 & 3