| public LoadXml ( System xmlElement ) : void | ||
| xmlElement | System | The XML element from which to load the XadesSignedXml state |
| return | void | |
/// <summary>
/// Realiza la contrafirma de la firma actual
/// </summary>
/// <param name="certificate"></param>
/// <param name="signMethod"></param>
public void CounterSign(X509Certificate2 certificate, SignMethod? signMethod = null)
{
SetSignatureId();
if (_xadesSignedXml == null)
{
throw new Exception("No hay ninguna firma XADES cargada previamente.");
}
if (certificate == null)
{
throw new Exception("Es necesario un certificado válido para la firma.");
}
if (signMethod.HasValue)
{
this.SignMethod = signMethod.Value;
}
_signCertificate = certificate;
XadesSignedXml counterSignature = new XadesSignedXml(_document);
SetCryptoServiceProvider();
counterSignature.SigningKey = _rsaKey;
Reference reference = new Reference();
reference.Uri = "#" + _xadesSignedXml.SignatureValueId;
reference.Id = "Reference-" + Guid.NewGuid().ToString();
reference.Type = "http://uri.etsi.org/01903#CountersignedSignature";
reference.AddTransform(new XmlDsigC14NTransform());
counterSignature.AddReference(reference);
_objectReference = reference.Id;
KeyInfo keyInfo = new KeyInfo();
keyInfo.Id = "KeyInfoId-" + _signatureId;
keyInfo.AddClause(new KeyInfoX509Data((X509Certificate)_signCertificate));
keyInfo.AddClause(new RSAKeyValue((RSA)_rsaKey));
counterSignature.KeyInfo = keyInfo;
Reference referenceKeyInfo = new Reference();
referenceKeyInfo.Id = "ReferenceKeyInfo-" + _signatureId;
referenceKeyInfo.Uri = "#KeyInfoId-" + _signatureId;
counterSignature.AddReference(referenceKeyInfo);
counterSignature.Signature.Id = _signatureId;
counterSignature.SignatureValueId = _signatureValueId;
XadesObject counterSignatureXadesObject = new XadesObject();
counterSignatureXadesObject.Id = "CounterSignatureXadesObject-" + Guid.NewGuid().ToString();
counterSignatureXadesObject.QualifyingProperties.Target = "#" + _signatureId;
counterSignatureXadesObject.QualifyingProperties.SignedProperties.Id = "SignedProperties-" + _signatureId;
AddSignatureProperties(counterSignatureXadesObject.QualifyingProperties.SignedProperties.SignedSignatureProperties,
counterSignatureXadesObject.QualifyingProperties.SignedProperties.SignedDataObjectProperties,
counterSignatureXadesObject.QualifyingProperties.UnsignedProperties.UnsignedSignatureProperties,
"text/xml", _signCertificate);
counterSignature.AddXadesObject(counterSignatureXadesObject);
foreach (Reference signReference in counterSignature.SignedInfo.References)
{
signReference.DigestMethod = _refsMethodUri;
}
counterSignature.AddXadesNamespace = true;
counterSignature.ComputeSignature();
UnsignedProperties unsignedProperties = _xadesSignedXml.UnsignedProperties;
unsignedProperties.UnsignedSignatureProperties.CounterSignatureCollection.Add(counterSignature);
_xadesSignedXml.UnsignedProperties = unsignedProperties;
UpdateDocument();
_xadesSignedXml = new XadesSignedXml(_document);
XmlNode xmlNode = _document.SelectSingleNode("//*[@Id='" + _signatureId + "']");
_xadesSignedXml.LoadXml((XmlElement)xmlNode);
}
/// <summary>
/// Realiza el proceso de firmado
/// </summary>
/// <param name="certificate"></param>
/// <param name="signMethod"></param>
public void Sign(X509Certificate2 certificate, SignMethod? signMethod = null)
{
if (certificate == null)
{
throw new Exception("Es necesario un certificado válido para la firma.");
}
if (signMethod.HasValue)
{
this.SignMethod = signMethod.Value;
}
if (!string.IsNullOrEmpty(_signatureId) && _document != null &&
_document.SelectSingleNode("//*[@Id='" + _signatureId + "']") != null)
{
throw new Exception("El documento ya ha sido firmado, debe seleccionar otro método de firma.");
}
if (string.IsNullOrEmpty(_signatureId))
{
SetSignatureId();
}
_signCertificate = certificate;
AddCertificateInfo();
AddXadesInfo();
foreach (Reference reference in _xadesSignedXml.SignedInfo.References)
{
reference.DigestMethod = _refsMethodUri;
}
_xadesSignedXml.SignedInfo.SignatureMethod = _signMethodUri;
ComputeSignature();
UpdateDocument();
XmlNode xmlNode = _document.SelectSingleNode("//*[@Id='" + _signatureId + "']");
_xadesSignedXml = new XadesSignedXml(_document);
_xadesSignedXml.LoadXml((XmlElement)xmlNode);
}
/// <exception cref="System.IO.IOException"></exception>
public virtual Document ExtendSignature(object signatureId, Document document, Document
originalData, SignatureParameters parameters)
{
if (this.tspSource == null)
{
throw new ConfigurationException(ConfigurationException.MSG.CONFIGURE_TSP_SERVER);
}
XmlDocument envelopedSignatureXmlDocument;
XmlDocument xadesDocument;
XmlElement signature;
XadesSignedXml xadesSignedXml;
xadesDocument = XmlUtils.ToXmlDocument(document);
xadesDocument.PreserveWhitespace = true;
xadesDocument.Load(document.OpenStream());
xadesSignedXml = new XadesSignedXml(xadesDocument.DocumentElement); //Needed if it is a enveloped signature document
signature = xadesSignedXml.GetIdElement(xadesDocument, (string)signatureId);
xadesSignedXml.LoadXml(signature);
ExtendSignatureTag(xadesSignedXml);
envelopedSignatureXmlDocument = XmlUtils.ToXmlDocument(originalData);
return XmlUtils.ToDocument(envelopedSignatureXmlDocument, xadesSignedXml);
}