From b416908edeee2712311496e1db7e86906dbc50d8 Mon Sep 17 00:00:00 2001
From: mwh1g17 <mwh1g17@soton.ac.uk>
Date: Thu, 7 May 2020 12:51:49 +0100
Subject: [PATCH] Upload New File
---
Scyther Files/MutualAuthentication.spdl | 56 +++++++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Scyther Files/MutualAuthentication.spdl
diff --git a/Scyther Files/MutualAuthentication.spdl b/Scyther Files/MutualAuthentication.spdl
new file mode 100644
index 0000000..4906eec
--- /dev/null
+++ b/Scyther Files/MutualAuthentication.spdl
@@ -0,0 +1,56 @@
+
+hashfunction hashed;
+hashfunction sharedkey;
+usertype Message;
+usertype SessionKey;
+
+protocol MutualAuthentication(Monitor,CloudServer)
+{
+ role Monitor
+
+ {
+
+ fresh MonitorValue : Nonce;
+ var CloudServerValue : Nonce;
+
+ fresh MonitorInformation : Message;
+ var CloudServerInformation: Message;
+ fresh sharedkey: SessionKey;
+
+
+ send_1(Monitor,CloudServer,{Monitor,MonitorValue}pk(CloudServer));
+ recv_2(CloudServer,Monitor, {CloudServerValue,hashed(MonitorValue),CloudServer}pk(Monitor));
+ send_3(Monitor,CloudServer,{CloudServerValue, MonitorInformation} sharedkey );
+ recv_4(CloudServer,Monitor,{MonitorValue,CloudServerInformation} sharedkey);
+
+ claim_Monitor1(Monitor,Niagree);
+ claim_Monitor2(Monitor,Nisynch);
+ claim_Monitor3(Monitor, Secret, CloudServerInformation);
+ claim_Monitor4(Monitor,Alive);
+
+
+ }
+
+ role CloudServer
+
+ {
+
+ var MonitorValue: Nonce;
+ fresh CloudServerValue: Nonce;
+
+ fresh CloudServerInformation: Message;
+ var MonitorInformation: Message;
+ var sharedkey: SessionKey;
+
+ recv_1(Monitor,CloudServer,{Monitor,MonitorValue}pk(CloudServer));
+ send_2(CloudServer,Monitor, {CloudServerValue,hashed(MonitorValue),CloudServer}pk(Monitor));
+ recv_3(Monitor,CloudServer, {CloudServerValue, MonitorInformation} sharedkey );
+ send_4(CloudServer,Monitor,{MonitorValue,CloudServerInformation} sharedkey);
+
+ claim_CloudServer1(CloudServer,Niagree);
+ claim_CloudServer2(CloudServer,Nisynch);
+ claim_CloudServer3(CloudServer, Secret, MonitorInformation);
+ claim_CloudServer4(CloudServer,Alive);
+
+ }
+}
--
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