public FrmSeleccionarFirma(FirmaXades[] firmas)
{
InitializeComponent();
_firmas = firmas;
foreach (var firma in firmas)
{
string textoFirma = string.Format("{0} - {1}",
firma.XadesSignature.XadesObject.QualifyingProperties.SignedProperties.SignedSignatureProperties.SigningTime,
firma.Certificate.Subject);
lstFirmas.Items.Add(textoFirma);
}
lstFirmas.SelectedIndex = 0;
}
private void btnGenerar_Click(object sender, EventArgs e)
{
FirmaXades firmaXades = new FirmaXades();
string ficheroFactura = Application.StartupPath + "\\Facturae.xml";
firmaXades.SetContentEnveloped(ficheroFactura);
// Política de firma de factura-e 3.1
firmaXades.PolicyIdentifier = "http://www.facturae.es/politica_de_firma_formato_facturae/politica_de_firma_formato_facturae_v3_1.pdf";
firmaXades.PolicyHash = "Ohixl6upD6av8N7pEvDABhEL6hM=";
firmaXades.Sign(firmaXades.SelectCertificate());
if (saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
firmaXades.Save(saveFileDialog1.FileName);
MessageBox.Show("Fichero guardado correctamente.");
}
}
/// <summary>
/// Carga un archivo de firma.
/// </summary>
/// <param name="xmlDocument"></param>
public static FirmaXades[] Load(XmlDocument xmlDocument)
{
XmlNodeList signatureNodeList = xmlDocument.GetElementsByTagName("Signature", SignedXml.XmlDsigNamespaceUrl);
if (signatureNodeList.Count == 0)
{
throw new Exception("No se ha encontrado ninguna firma.");
}
List <FirmaXades> firmas = new List <FirmaXades>();
foreach (var signatureNode in signatureNodeList)
{
FirmaXades firma = new FirmaXades();
firma._document = xmlDocument;
firma._xadesSignedXml = new XadesSignedXml(firma._document);
firma._xadesSignedXml.LoadXml((XmlElement)signatureNode);
if (firma._xadesSignedXml.SignedInfo.SignatureMethod == RSAwithSHA1Uri)
{
firma.SignMethod = SignMethod.RSAwithSHA1;
}
else if (firma._xadesSignedXml.SignedInfo.SignatureMethod == RSAwithSHA256Uri)
{
firma.SignMethod = SignMethod.RSAwithSHA256;
}
else if (firma._xadesSignedXml.SignedInfo.SignatureMethod == RSAwithSHA512Uri)
{
firma.SignMethod = SignMethod.RSAwithSHA512;
}
XmlNode keyXml = firma._xadesSignedXml.KeyInfo.GetXml().GetElementsByTagName("X509Certificate", SignedXml.XmlDsigNamespaceUrl)[0];
firma._signCertificate = new X509Certificate2(Convert.FromBase64String(keyXml.InnerText));
firma._xadesSignedXml.FindContentElement();
firmas.Add(firma);
}
return(firmas.ToArray());
}
private void btnCargarFirma_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
using (FileStream fs = new FileStream(openFileDialog1.FileName, FileMode.Open))
{
var firmas = FirmaXades.Load(fs);
FrmSeleccionarFirma frm = new FrmSeleccionarFirma(firmas);
if (frm.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
_firmaXades = frm.FirmaSeleccionada;
}
else
{
MessageBox.Show("Debe seleccionar una firma.");
}
}
}
}
/// <summary>
/// Carga un archivo de firma.
/// </summary>
/// <param name="xmlDocument"></param>
public static FirmaXades[] Load(XmlDocument xmlDocument)
{
XmlNodeList signatureNodeList = xmlDocument.GetElementsByTagName("Signature", SignedXml.XmlDsigNamespaceUrl);
if (signatureNodeList.Count == 0)
{
throw new Exception("No se ha encontrado ninguna firma.");
}
List<FirmaXades> firmas = new List<FirmaXades>();
foreach (var signatureNode in signatureNodeList)
{
FirmaXades firma = new FirmaXades();
firma._document = xmlDocument;
firma._xadesSignedXml = new XadesSignedXml(firma._document);
firma._xadesSignedXml.LoadXml((XmlElement)signatureNode);
if (firma._xadesSignedXml.SignedInfo.SignatureMethod == RSAwithSHA1Uri)
{
firma.SignMethod = SignMethod.RSAwithSHA1;
}
else if (firma._xadesSignedXml.SignedInfo.SignatureMethod == RSAwithSHA256Uri)
{
firma.SignMethod = SignMethod.RSAwithSHA256;
}
else if (firma._xadesSignedXml.SignedInfo.SignatureMethod == RSAwithSHA512Uri)
{
firma.SignMethod = SignMethod.RSAwithSHA512;
}
XmlNode keyXml = firma._xadesSignedXml.KeyInfo.GetXml().GetElementsByTagName("X509Certificate", SignedXml.XmlDsigNamespaceUrl)[0];
firma._signCertificate = new X509Certificate2(Convert.FromBase64String(keyXml.InnerText));
firma._xadesSignedXml.FindContentElement();
firmas.Add(firma);
}
return firmas.ToArray();
}
