Hello: How can I designate a master peer?

Question

Hello,
I'm able to create a peer network and chat.
I want to have one peer be a master peer that people login to and save/load information from.
Without a master peer, I can still fake a master peer, but it has security vulnerabilities that could render my ap useless if someone wants to be a jerk.
,Jim

Answer 1

Michael Thornburgh: Can you tell me how the code would look?
I can't figure out how to transmit a password on the network without everyone seeing it.
Sure you can encrypt the password, but if someone decompiles the source(ez), they can find the encryption code and then use it to decrypt the password which is sent over public P2P.
Here is code from @tomkrcha:
In it, I can get a chat room, where everyone can pass information between each other.
I can not pass private information though because I can't figure out how to do direct connects via P2P.  Is there a way to do direct connect P2P?  This would be important for games where latency matters.
Cirrus is exciting for me because it means I might not have to pay for an expensive server to run my P2P coding, and then I can run games that would require a milliondollar server for free!  I've written a P2P server/peer architecture in C/C++ for action games, but I'm having trouble finding out how Cirrus works.
I think the easiest solution would be if Cirrus allowed you to connect to IP addresses as a direct connect P2P connection.  Then if you had a server with a static IP running someplace, peers could connect to that "master peer" directly for login details.  Is it possible to direct connect to an IP using UDP P2P? If there is, Cirrus is much more useful! 
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx" applicationComplete="connect()">
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <fx:Script>
        <![CDATA[
            private const SERVER:String = "rtmfp://p2p.rtmfp.net/";
            private const DEVKEY:String = "xed out for security reasons";
            private var nc:NetConnection;
            private var netGroup:NetGroup;
            [Bindable]
            private var user:String;
            [Bindable]
            private var connected:Boolean = false;
            private function connect():void{
                nc = new NetConnection();
                nc.addEventListener(NetStatusEvent.NET_STATUS,netStatus);
                nc.connect(SERVER+DEVKEY);   
            private function netStatus(event:NetStatusEvent):void{
                write(event.info.code);
                switch(event.info.code){
                    case "NetConnection.Connect.Success":
                        setupGroup()
                        break;
                    case "NetGroup.Connect.Success":
                        connected = true;
                        break;
                    case "NetGroup.Posting.Notify":
                        receiveMessage(event.info.message);
                        break;
            private function setupGroup():void{
                var groupspec:GroupSpecifier = new GroupSpecifier("Jimsgroup");
                groupspec.serverChannelEnabled = true;
                groupspec.postingEnabled = true;
                trace("Groupspec: "+groupspec.groupspecWithAuthorizations());
                netGroup = new NetGroup(nc,groupspec.groupspecWithAuthorizations());
                netGroup.addEventListener(NetStatusEvent.NET_STATUS,netStatus);
                user = "user"+Math.round(Math.random()*10000);
            private var sequence:uint = 0;
            private function sendMessage():void{
                var message:Object = new Object();
                message.sender = netGroup.convertPeerIDToGroupAddress(nc.nearID);
                //message.sequence = sequence++;
                message.user = txtUser.text;
                message.text = txtMessage.text;
                netGroup.post(message);
                receiveMessage(message);
                txtMessage.text = "";
            private function receiveMessage(message:Object):void{
                write(message.user+": "+message.text);
            private function write(txt:String):void{
                txtHistory.text += txt+"\n";
        ]]>
    </fx:Script>
    <s:TextArea left="10" right="10" top="10" bottom="40" id="txtHistory"/>
    <s:TextInput x="10" id="txtUser" text="{user}" bottom="10"/>
    <s:TextInput left="145" right="88" id="txtMessage" bottom="10" enter="sendMessage()"/>
    <s:Button label="Send" click="sendMessage()" enabled="{connected}" bottom="10" right="10"/>
</s:Application>