private bool ValidateCryptosystem()
{
if (PrivateKeyR.cols != Dim || PublicKeyB.cols != Dim || ErrorVector.dim != Dim)
{
MessageBox.Show(string.Format(Languages.errorWrongGGHCryptosystem, Dim), Languages.error, MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
if (!GGH.DoTheKeysFit())
{
MessageBox.Show(Languages.errorPrivateAndPublicKeyDoNotFit, Languages.error, MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
return(true);
}
public void Decrypt()
{
if (!ValidateCryptosystem())
{
return;
}
UiServices.SetBusyState();
Paragraph paragraph = new Paragraph();
try
{
Message = GGH.Decrypt(cipher);
paragraph.Inlines.Add(new Bold(new Underline(new Run("** " + Languages.buttonDecrypt + " **\r\n"))));
paragraph.Inlines.Add(new Bold(new Run(Languages.labelCiphertext)));
paragraph.Inlines.Add(" " + Cipher + "\r\n");
paragraph.Inlines.Add(new Bold(new Run(Languages.labelPlainText)));
paragraph.Inlines.Add(" " + Message + "\r\n");
NotifyPropertyChanged("Message");
}
catch (Exception ex)
{
paragraph.Inlines.Add(new Bold(new Run(Languages.labelAbort)));
paragraph.Inlines.Add(" " + ex.Message + "\r\n");
MessageBox.Show(string.Format(Languages.errorDecryptionError, ex.Message), Languages.error, MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
if (History.Document.Blocks.FirstBlock != null)
{
History.Document.Blocks.InsertBefore(History.Document.Blocks.FirstBlock, paragraph);
}
else
{
History.Document.Blocks.Add(paragraph);
}
}
}
public void Encrypt()
{
if (!ValidateCryptosystem())
{
return;
}
UiServices.SetBusyState();
Message = Message.TrimEnd('\0');
Cipher = GGH.Encrypt(Message).ToString();
Paragraph paragraph = new Paragraph();
paragraph.Inlines.Add(new Bold(new Underline(new Run("** " + Languages.buttonEncrypt + " **\r\n"))));
paragraph.Inlines.Add(new Bold(new Run(Languages.labelPlainText)));
paragraph.Inlines.Add(" " + Message + "\r\n");
paragraph.Inlines.Add(new Bold(new Run(Languages.labelCiphertext)));
paragraph.Inlines.Add(" " + Cipher + "\r\n");
History.Document.Blocks.InsertBefore(History.Document.Blocks.FirstBlock, paragraph);
NotifyPropertyChanged("Cipher");
}
