/// <summary>
/// Generate Certificate Signing Request (CSR) from private key.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void CSRBtn_Click(object sender, EventArgs e)
{
try
{
if (SystemTitleTb.Text == "")
{
throw new Exception("Invalid system title.");
}
byte[] st = GXDLMSTranslator.HexToBytes(SystemTitleTb.Text);
if (st.Length != 8)
{
throw new Exception("Invalid system title.");
}
OpenFileDialog dlg = new OpenFileDialog();
dlg.Multiselect = false;
if (string.IsNullOrEmpty(_path))
{
dlg.InitialDirectory = Directory.GetCurrentDirectory();
}
else
{
System.IO.FileInfo fi = new System.IO.FileInfo(_path);
dlg.InitialDirectory = fi.DirectoryName;
dlg.FileName = fi.Name;
}
dlg.Filter = Properties.Resources.PemFilterTxt;
dlg.DefaultExt = ".pem";
dlg.ValidateNames = true;
if (dlg.ShowDialog(Parent) == DialogResult.OK)
{
string path = dlg.FileName;
GXPkcs8 pk = GXPkcs8.Load(path);
KeyValuePair <GXPublicKey, GXPrivateKey> kp = new KeyValuePair <GXPublicKey, GXPrivateKey>(pk.PublicKey, pk.PrivateKey);
//Generate certificate request and ask new x509Certificate.
GXPkcs10 pkc10 = GXPkcs10.CreateCertificateSigningRequest(kp, GXAsn1Converter.SystemTitleToSubject(st));
Pkcs10Tb.Text = pkc10.ToPem();
Pkcs10Tb.AppendText(Environment.NewLine);
Pkcs10Tb.AppendText(pkc10.ToString());
}
}
catch (Exception ex)
{
MessageBox.Show(Parent, ex.Message);
}
}
public GXCertifigateGenerationForm(string address, GXPkcs10 pkc10, CertificateType type, byte[] systemTitle)
{
InitializeComponent();
_address = address;
SystemTitleTb.Text = GXDLMSTranslator.ToHex(systemTitle, false);
LoadBtn.Enabled = CSRBtn.Enabled = false;
Pkcs10Tb.Text = pkc10.ToPem();
Pkcs10Tb.AppendText(Environment.NewLine);
Pkcs10Tb.AppendText(pkc10.ToString());
if (type == CertificateType.DigitalSignature)
{
DigitalSignatureCb.Checked = true;
}
else if (type == CertificateType.KeyAgreement)
{
KeyAgreementCb.Checked = true;
}
else
{
ServerTlsCb.Checked = true;
}
ServerTlsCb.Enabled = KeyAgreementCb.Enabled = DigitalSignatureCb.Enabled = false;
}