From c155c2ffb898bd75f21705f520b102333331288a Mon Sep 17 00:00:00 2001
From: mwh1g17 <mwh1g17@soton.ac.uk>
Date: Sat, 2 May 2020 18:47:13 +0100
Subject: [PATCH] Key Exchange Protocol
---
Scyther Files/KeyExchange.spdl | 41 ++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 Scyther Files/KeyExchange.spdl
diff --git a/Scyther Files/KeyExchange.spdl b/Scyther Files/KeyExchange.spdl
new file mode 100644
index 0000000..c571a44
--- /dev/null
+++ b/Scyther Files/KeyExchange.spdl
@@ -0,0 +1,41 @@
+
+hashfunction hashed;
+
+protocol KeyExchange(Monitor,CloudServer)
+{
+ role Monitor
+
+ {
+
+ fresh MonitorValue : Nonce;
+ var CloudServerValue : Nonce;
+
+ send_1(Monitor,CloudServer,{Monitor,MonitorValue}pk(CloudServer));
+ recv_2(CloudServer,Monitor, {CloudServerValue,hashed(MonitorValue),CloudServer}pk(Monitor));
+ send_3(Monitor,CloudServer, hashed(CloudServerValue));
+
+ claim_Monitor1(Monitor,Niagree);
+ claim_Monitor2(Monitor,Nisynch);
+ claim_Monitor3(Monitor, Secret, MonitorValue);
+ claim_Monitor4(Monitor, Secret, CloudServerValue);
+
+ }
+
+ role CloudServer
+
+ {
+
+ var MonitorValue: Nonce;
+ fresh CloudServerValue: Nonce;
+
+ recv_1(Monitor,CloudServer,{Monitor,MonitorValue}pk(CloudServer));
+ send_2(CloudServer,Monitor, {CloudServerValue,hashed(MonitorValue),CloudServer}pk(Monitor));
+ recv_3(Monitor,CloudServer, hashed(CloudServerValue));
+
+ claim_CloudServer1(CloudServer,Niagree);
+ claim_CloudServer2(CloudServer,Nisynch);
+ claim_CloudServer3(CloudServer, Secret, MonitorValue);
+ claim_CloudServer4(CloudServer, Secret, CloudServerValue);
+
+ }
+}
--
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