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hashfunction hashed;
hashfunction sharedkey;
usertype Message;
usertype SessionKey;
protocol SessionKeys(Monitor,CloudServer) {
role Monitor {
fresh MonitorValue : Nonce;
var CloudServerValue : Nonce;
fresh info : Message;
var info: 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, {info} sharedkey);
claim_Monitor1(Monitor,Alive);
claim_Monitor2(Monitor,Secret, info);
}
role CloudServer {
var MonitorValue: Nonce;
fresh CloudServerValue: Nonce;
var info: Message;
fresh info: Message;
fresh sharedkey: SessionKey;
recv_1(Monitor,CloudServer,{Monitor,MonitorValue}pk(CloudServer));
send_2(CloudServer,Monitor, {CloudServerValue,hashed(MonitorValue),
CloudServer}pk(Monitor));
recv_3(Monitor,CloudServer, {info} sharedkey);
claim_CloudServer1(CloudServer,Niagree);
claim_CloudServer2(CloudServer,Nisynch);
claim_CloudServer3(CloudServer,Alive);
claim_CloudServer4(CloudServer,Secret, info);
}
}