private void SaveKeySignButton_Click(object sender, EventArgs e)
{
// Save Key
try
{
// Fetch ingredients for private key
BigInteger p = BigInteger.Parse(pSignTextBox.Text);
BigInteger g = BigInteger.Parse(gSignTextBox.Text);
BigInteger x = BigInteger.Parse(xSignTextBox.Text);
// Generate key
Key k = new Key(p, g, x);
Key.PrivateKey pri = k.GeneratePrivateKey();
Key.PublicKey pub = k.GeneratePublicKey();
SaveFileDialog fileBrowser = new SaveFileDialog();
DialogResult result = fileBrowser.ShowDialog();
if (result == DialogResult.OK)
{
string fileName = fileBrowser.FileName;
k.saveToFile(fileName);
}
}
catch (Exception ex)
{
//ShowMessageBox("Key generation failed.");
}
}
private void RandomKeySignButton_Click(object sender, EventArgs e)
{
// Generate Random Key
key = Key.GenerateRandomKey();
Key.PrivateKey pKey = key.GeneratePrivateKey();
pSignTextBox.Text = pKey.P.ToString();
gSignTextBox.Text = pKey.G.ToString();
xSignTextBox.Text = pKey.X.ToString();
}
private void LoadKeySignButton_Click(object sender, EventArgs e)
{
// Load Key Sign
string fileKey = ShowOpenDialog("Public Key (*.pri)|*.pri");
if (fileKey == null)
{
return;
}
Key.PrivateKey prkey = Key.GeneratePrivateKeyFromFile(fileKey);
gSignTextBox.Text = prkey.G.ToString();
pSignTextBox.Text = prkey.P.ToString();
xSignTextBox.Text = prkey.X.ToString();
}
private void SignEmail(Key.PrivateKey key)
{
Outlook.Application application = Globals.ThisAddIn.Application;
Outlook.Inspector inspector = application.ActiveInspector();
Outlook.MailItem item = (Outlook.MailItem)inspector.CurrentItem;
//Outlook.MailItem item = Outlook. Inspector.CurrentItem as Outlook.MailItem;
if (item != null)
{
string body = item.Body;
item.Body = body;
// Put Algorithm Sign Here
SHA256 sha = new SHA256();
BigInteger hash = sha.GetMessageDigestToBigInteger(body);
//System.Windows.Forms.MessageBox.Show("Hash=" + sha.GetMessageDigestToBigInteger(item.Body).ToString());
item.Body += "<sign>" + SiGamalGenerator.signature(key.P, key.G, key.X, hash) + "<sign>";
}
}
