public ImReceivedMessageEventArgs(IMLibrary.Message message)
{
this._message = message;
}
private void ChatDialogoue_PreviewKeyDown(object sender, KeyEventArgs e)
{
IMLibrary.Client selectedClient = (IMLibrary.Client)ListBuddies.Items[ListBuddies.SelectedIndex];
if (selectedClient == null)
{
return;
}
if (e.Key != Key.Enter)
{
return;
}
e.Handled = true;
if (_clientPromtList.Find(c => c.Item1.UserName == selectedClient.UserName).Item2.txtSend.Text == "")
{
return;
}
string message = _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.txtSend.Text; /* Actual message that is to be sent, this is where we can encrypt it*/
GeneratedClientList.ToList().Find(cli => cli.UserName == selectedClient.UserName).NewMessages = false;
GeneratedClientList.ToList().Find(cli => cli.UserName == selectedClient.UserName).Received = 0;
string encryptedMessage = "";
try
{
if (_clientKeyIvDictionary.ContainsKey(selectedClient.UserName))
{
int selectedEncryptionMethod = _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.EncryptionMethod.SelectedIndex;
switch (selectedEncryptionMethod)
{
case 0: //symmetrical encryption
int selectedStandard = _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.EncryptionStandard.SelectedIndex;
switch (selectedStandard)
{
case 0:
encryptedMessage = Cryptography.Encrypt <AesManaged>(message, _clientKeyIvDictionary[selectedClient.UserName].Item1, Encoding.Unicode.GetString(_clientKeyIvDictionary[selectedClient.UserName].Item2));
break;
case 1: //
encryptedMessage = Cryptography.Encrypt <TripleDESCryptoServiceProvider>(message, _clientKeyIvDictionary[selectedClient.UserName].Item1, Encoding.Unicode.GetString(_clientKeyIvDictionary[selectedClient.UserName].Item2));
break;
//case 2:
// encryptedMessage = Cryptography.Encrypt<RC2CryptoServiceProvider>(message, _clientKeyIvDictionary[selectedClient.UserName].Item1, Encoding.Unicode.GetString(_clientKeyIvDictionary[selectedClient.UserName].Item2));
// break;
}
break;
case 1: //one-time-pad
if (_clientPromtList.Find(c => c.Item1 == selectedClient).Item2.txtOneTimePad.Text.Length >= message.Length)
{
encryptedMessage = Cryptography.EncryptMessageWithPad(_clientPromtList.Find(c => c.Item1 == selectedClient).Item2.txtOneTimePad.Text, message);
}
break;
}
}
else
{
encryptedMessage = Cryptography.EncryptData(message, selectedClient.PublicKey);
}
var isChecked = _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.SynchroniseCheckBox.IsChecked;
bool syncFlag = isChecked != null && (bool)isChecked;
int encryptionStandardFlag = _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.EncryptionStandard.SelectedIndex;
int encryptionMethodFlag = _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.EncryptionMethod.SelectedIndex;
IMLibrary.Message messagePacket = new IMLibrary.Message(encryptedMessage, selectedClient.UserName, this._clientHandler.ClientInfo.UserName, encryptionStandardFlag, encryptionMethodFlag, syncFlag);
_clientPromtList.Find(c => c.Item1 == selectedClient).Item2.RecieveText.AppendNewLine(String.Format("[{0}] << {1}", DateTime.Now.ToString("HH:mm:ss"), _clientPromtList.Find(c => c.Item1 == selectedClient).Item2.txtSend.Text));
_clientPromtList.Find(c => c.Item1 == selectedClient).Item2.txtSend.Text = "";
this._clientHandler.SendMessage(messagePacket);
}
catch
{
_clientPromtList.Find(c => c.Item1 == selectedClient).Item2.RecieveText.AppendNewLine(String.Format("[{0}] << {1}", DateTime.Now.ToString("HH:mm:ss"), "This user may have removed their public key from the server; this message cannot be sent to ensure security integrity."));
}
}
