public void _clientHandler_InitiateNegotiation(object sender, InitiateNegotiationEventArgs e)
{
try
{
foreach (IMLibrary.Client client in e.ClientList)
{
if (GeneratedClientList.Count(cli => cli.UserName == client.UserName) == 0)
{
//generate a new key/salt pair with the correct public key and negotiate with the client
Tuple <byte[], byte[]> unencryptedKeySaltPair = GenerateUnencryptedKeySaltPair();
Tuple <byte[], byte[]> encryptedKeySalePair = EncryptKeySaltPair(client.PublicKey, unencryptedKeySaltPair);
_clientHandler.NegotiateSymmetricKeys(encryptedKeySalePair, client.UserName);
if (this._clientKeyIvDictionary.ContainsKey(client.UserName))
{
this._clientKeyIvDictionary.Remove(client.UserName);
}
this._clientKeyIvDictionary.Add(client.UserName, unencryptedKeySaltPair);
}
}
}
catch
{
}
}
public ImMainWindowNew(ImClientHandler clientHandler)
{
InitializeComponent();
_clientHandler = clientHandler;
GeneratedClientList = new ObservableCollection <User>();
foreach (IMLibrary.Client client in _clientHandler.GeneratedClientList)
{
GeneratedClientList.Add(new User(client.UserName, client.Available, client.FingerPrint, client.PublicKey, client.Buddies, 0));
}
//GeneratedClientList.CollectionChanged += GeneratedClientList_CollectionChanged;
_clientHandler.ListEventHandler += _clientHandler_ListEventHandler;
_clientHandler.KeyNegotiationEventHandler += _clientHandler_KeyNegotiationEventHandler;
_clientHandler.NegotiationEventHandler += _clientHandler_InitiateNegotiation;
_clientHandler.BuddyEventHandler += _clientHandler_BuddyEventHandler;
_filteredView = new CollectionViewSource {
Source = GeneratedClientList
}.View;
DataContext = new
{
user = _clientHandler.ClientInfo,
clients = _filteredView,
//messages = _clientMessagesReceivedTupleList
};
_filteredView.Refresh();
IMChatPromtEventHandler chatPromtEventHandler = MessageReceiveHandler;
clientHandler.ChatPromtCheck += chatPromtEventHandler;
foreach (User client in GeneratedClientList)
{
ChatDialogueLocal chatDialogoue = new ChatDialogueLocal {
lblUsername = { Content = client.UserName }, lblFingerPrint = { Content = client.FingerPrint }
};
chatDialogoue.ButtonRegenerateKeys.Click += ButtonRegenerateKeys_Click;
_clientPromtList.Add(new Tuple <IMLibrary.Client, ChatDialogueLocal>(client, chatDialogoue));
//_clientMessagesReceivedTupleList.Add(new Pair<IMLibrary.Client, string>(client, "0"));
if (client.FingerPrint != null)
{
chatDialogoue.ChangeColourOfPrint();
chatDialogoue.LoadPrint();
//new instant of aes, key and IV are created and access through properties. f
try
{
Tuple <byte[], byte[]> unencryptedKeySaltPair = GenerateUnencryptedKeySaltPair();
Tuple <byte[], byte[]> encryptedKeySaltPair = EncryptKeySaltPair(client.PublicKey, unencryptedKeySaltPair);
if (client.UserName != _clientHandler.ClientInfo.UserName)
{
_clientHandler.NegotiateSymmetricKeys(encryptedKeySaltPair, client.UserName);
}
this._clientKeyIvDictionary.Add(client.UserName, unencryptedKeySaltPair);
}
catch (Exception e)
{
//will fail if we don't know the clients public key
}
}
}
}