private void InjectXadesXInformation(XadesSignedXml xadesSignedXml)
{
TimeStamp xadesXTimeStamp;
ArrayList signatureValueElementXpaths;
byte[] signatureValueHash;
byte[] tsaTimeStamp;
signatureValueElementXpaths = new ArrayList();
signatureValueElementXpaths.Add("ds:Object/xsd:QualifyingProperties/xsd:UnsignedProperties/xsd:UnsignedSignatureProperties/xsd:CompleteCertificateRefs");
signatureValueElementXpaths.Add("ds:Object/xsd:QualifyingProperties/xsd:UnsignedProperties/xsd:UnsignedSignatureProperties/xsd:CompleteRevocationRefs");
signatureValueHash = ComputeHashValueOfElementList(xadesSignedXml.GetXml(), signatureValueElementXpaths);
//jbonilla
tsaTimeStamp = this.tspSource.GetTimeStampToken(signatureValueHash);
xadesXTimeStamp = new TimeStamp("RefsOnlyTimeStamp");
xadesXTimeStamp.EncapsulatedTimeStamp.PkiData = tsaTimeStamp;
xadesXTimeStamp.CanonicalizationMethod.Algorithm = SignedXml.XmlDsigExcC14NTransformUrl;
//xadesXTimeStamp.EncapsulatedTimeStamp.Id = "";
//jbonilla Deprecated
//foreach (string elementIdValue in elementIdValues)
//{
// hashDataInfo = new HashDataInfo();
// hashDataInfo.UriAttribute = "#" + elementIdValue;
// xadesXTimeStamp.HashDataInfoCollection.Add(hashDataInfo);
//}
UnsignedProperties unsignedProperties = xadesSignedXml.UnsignedProperties;
unsignedProperties.UnsignedSignatureProperties.RefsOnlyTimeStampFlag = true;
unsignedProperties.UnsignedSignatureProperties.RefsOnlyTimeStampCollection.Add(xadesXTimeStamp);
xadesSignedXml.UnsignedProperties = unsignedProperties;
}
/// <summary>
/// Obtiene el valor canonicalizado de los elementos especificados en elementXpaths
/// </summary>
/// <param name="xadesSignedXml"></param>
/// <param name="elementXpaths"></param>
/// <returns></returns>
public static byte[] ComputeValueOfElementList(XadesSignedXml xadesSignedXml, ArrayList elementXpaths)
{
XmlDocument xmlDocument;
XmlNamespaceManager xmlNamespaceManager;
XmlNodeList searchXmlNodeList;
var signatureXmlElement = xadesSignedXml.GetSignatureElement();
var namespaces = xadesSignedXml.GetAllNamespaces(signatureXmlElement);
xmlDocument = signatureXmlElement.OwnerDocument;
xmlNamespaceManager = new XmlNamespaceManager(xmlDocument.NameTable);
xmlNamespaceManager.AddNamespace("ds", SignedXml.XmlDsigNamespaceUrl);
xmlNamespaceManager.AddNamespace("xades", XadesSignedXml.XadesNamespaceUri);
using (MemoryStream msResult = new MemoryStream())
{
foreach (string elementXpath in elementXpaths)
{
searchXmlNodeList = signatureXmlElement.SelectNodes(elementXpath, xmlNamespaceManager);
if (searchXmlNodeList.Count == 0)
{
throw new CryptographicException("Element " + elementXpath + " not found while calculating hash");
}
foreach (XmlNode xmlNode in searchXmlNodeList)
{
XmlAttribute dsNamespace = xmlDocument.CreateAttribute("xmlns:" + XadesSignedXml.XmlDSigPrefix);
dsNamespace.Value = XadesSignedXml.XmlDsigNamespaceUrl;
xmlNode.Attributes.Append(dsNamespace);
foreach (var attr in namespaces)
{
XmlAttribute attrNamespace = xmlDocument.CreateAttribute(attr.Name);
attrNamespace.Value = attr.Value;
xmlNode.Attributes.Append(attrNamespace);
}
byte[] canonicalizedElement = ApplyTransform((XmlElement)xmlNode, new XmlDsigC14NTransform());
msResult.Write(canonicalizedElement, 0, canonicalizedElement.Length);
}
}
return msResult.ToArray();
}
}
public static Document ToDocument(XmlDocument originalDocument, XadesSignedXml xadesSignedXml)
{
XmlElement xmlElementToSave;
originalDocument.DocumentElement.AppendChild(originalDocument.ImportNode(xadesSignedXml.GetXml(), true));
xmlElementToSave = originalDocument.DocumentElement;
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.PreserveWhitespace = true; //Needed
xmlDocument.LoadXml(xmlElementToSave.OuterXml);
MemoryStream buf = new MemoryStream();
xmlDocument.Save(buf);
buf.Seek(0, SeekOrigin.Begin);
return new InMemoryDocument(buf.ToArray());
}
/// <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);
}
protected internal virtual void ExtendSignatureTag(XadesSignedXml xadesSignedXml)
{
RequestTimeStamp(xadesSignedXml);
}
private void RequestTimeStamp(XadesSignedXml xadesSignedXml)
{
TimeStamp signatureTimeStamp;
ArrayList signatureValueElementXpaths;
byte[] signatureValueHash;
byte[] tsaTimeStamp;
signatureValueElementXpaths = new ArrayList();
signatureValueElementXpaths.Add("ds:SignatureValue");
signatureValueHash = ComputeHashValueOfElementList(xadesSignedXml.GetXml(), signatureValueElementXpaths);
//jbonilla
tsaTimeStamp = this.tspSource.GetTimeStampToken(signatureValueHash);
signatureTimeStamp = new TimeStamp("SignatureTimeStamp");
//signatureTimeStamp.EncapsulatedTimeStamp.Id = "SignatureTimeStamp" + this.uid;
signatureTimeStamp.EncapsulatedTimeStamp.PkiData = tsaTimeStamp;
signatureTimeStamp.CanonicalizationMethod.Algorithm = SignedXml.XmlDsigExcC14NTransformUrl;
//jbonilla Deprecated
//HashDataInfo hashDataInfo = new HashDataInfo();
//hashDataInfo.UriAttribute = "#" + elementIdValues[0];
//signatureTimeStamp.HashDataInfoCollection.Add(hashDataInfo);
UnsignedProperties unsignedProperties = xadesSignedXml.UnsignedProperties;
unsignedProperties.UnsignedSignatureProperties.SignatureTimeStampCollection.Add(signatureTimeStamp);
xadesSignedXml.UnsignedProperties = unsignedProperties;
//TODO jbonilla - Delete?
XmlElement xml = xadesSignedXml.XadesObject.GetXml();
XmlElement xml1 = xadesSignedXml.GetXml();
}
private void AddCertificateInfoToSignature(XadesSignedXml xadesSignedXml, SignatureParameters parameters)
{
var key = parameters.SigningCertificate.GetPublicKey();
if (key is RsaKeyParameters)
{
RSACryptoServiceProvider rsaKey = new RSACryptoServiceProvider();
RSAParameters RSAKeyInfo = new RSAParameters();
//Set RSAKeyInfo to the public key values.
RSAKeyInfo.Modulus = ((RsaKeyParameters)key).Modulus.ToByteArray();
RSAKeyInfo.Exponent = ((RsaKeyParameters)key).Exponent.ToByteArray();
rsaKey.ImportParameters(RSAKeyInfo);
xadesSignedXml.SigningKey = rsaKey;
KeyInfo keyInfo = new KeyInfo();
// ETSI TS 103 171 V2.1.1
// 6.2.1 Placement of the signing certificate
// "b) In order to facilitate path-building, generators should include in the same ds:KeyInfo/X509Data element as
// in note a) all certificates not available to verifiers that can be used during path building."
//keyInfo.AddClause(new KeyInfoX509Data(this.certificate));
{
KeyInfoX509Data x509Data = new KeyInfoX509Data();
foreach (X509Certificate cert in parameters.CertificateChain)
{
x509Data.AddCertificate(DotNetUtilities.ToX509Certificate2(cert));
//TODO jbonilla validar más de uno?
//break;
}
keyInfo.AddClause(x509Data);
}
keyInfo.AddClause(new RSAKeyValue(rsaKey));
xadesSignedXml.KeyInfo = keyInfo;
}
else
{
throw new ArgumentException("Only allowed RsaKeyParameters", "key");
}
}
/// <summary>
/// Inserta un documento para generar una firma internally detached.
/// </summary>
/// <param name="content"></param>
/// <param name="mimeType"></param>
public void SetContentInternallyDetached(byte[] content, string mimeType, string fileName = null)
{
_document = new XmlDocument();
XmlElement rootElement = _document.CreateElement("DOCFIRMA");
_document.AppendChild(rootElement);
string id = "CONTENT-" + Guid.NewGuid().ToString();
Reference reference = new Reference();
reference.Uri = "#" + id;
reference.Id = "Reference-" + Guid.NewGuid().ToString();
_objectReference = reference.Id;
_mimeType = mimeType;
XmlElement contentElement = _document.CreateElement("CONTENT");
if (mimeType == "text/xml")
{
XmlDocument doc = new XmlDocument();
doc.PreserveWhitespace = true;
doc.Load(new MemoryStream(content));
contentElement.InnerXml = doc.DocumentElement.OuterXml;
XmlDsigC14NTransform transform = new XmlDsigC14NTransform();
reference.AddTransform(transform);
}
else if (mimeType == "hash/sha256")
{
contentElement.SetAttribute("Encoding", "http://www.w3.org/2000/09/xmldsig#base64");
contentElement.SetAttribute("MimeType", mimeType);
if (!string.IsNullOrEmpty(fileName))
{
contentElement.SetAttribute("URI", Path.GetFileName(fileName));
}
using (SHA256 sha2 = SHA256.Create())
{
contentElement.InnerText = Convert.ToBase64String(sha2.ComputeHash(content));
}
XmlDsigBase64Transform transform = new XmlDsigBase64Transform();
reference.AddTransform(transform);
}
else
{
contentElement.SetAttribute("Encoding", "http://www.w3.org/2000/09/xmldsig#base64");
contentElement.InnerText = Convert.ToBase64String(content);
XmlDsigBase64Transform transform = new XmlDsigBase64Transform();
reference.AddTransform(transform);
}
contentElement.SetAttribute("Id", id);
rootElement.AppendChild(contentElement);
_xadesSignedXml = new XadesSignedXml(_document);
_xadesSignedXml.AddReference(reference);
}
/// <summary>
/// Inserta un documento para generar una firma externally detached.
/// </summary>
/// <param name="fileName"></param>
public void SetContentExternallyDetached(string fileName)
{
Reference reference = new Reference();
_document = new XmlDocument();
_xadesSignedXml = new XadesSignedXml();
reference.Uri = "file://" + fileName.Replace("\\", "/");
reference.Id = "Reference-" + Guid.NewGuid().ToString();
if (reference.Uri.EndsWith(".xml") || reference.Uri.EndsWith(".XML"))
{
_mimeType = "text/xml";
reference.AddTransform(new XmlDsigC14NTransform());
}
_objectReference = reference.Id;
_xadesSignedXml.AddReference(reference);
}
/// <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);
}
protected internal override void ExtendSignatureTag(XadesSignedXml xadesSignedXml)
{
base.ExtendSignatureTag(xadesSignedXml);
X509Certificate signingCertificate = DotNetUtilities.FromX509Certificate(
xadesSignedXml.GetSigningCertificate());
DateTime signingTime = xadesSignedXml.XadesObject.QualifyingProperties
.SignedProperties.SignedSignatureProperties.SigningTime;
ValidationContext ctx = certificateVerifier.ValidateCertificate(signingCertificate
, signingTime, new XAdESCertificateSource(xadesSignedXml.GetXml(), false), null, null);
UnsignedProperties unsignedProperties = null;
//int certificateValuesCounter;
CertificateValues certificateValues;
EncapsulatedX509Certificate encapsulatedX509Certificate;
RevocationValues revocationValues;
CRLValue newCRLValue;
OCSPValue newOCSPValue;
unsignedProperties = xadesSignedXml.UnsignedProperties;
//TODO jbonilla Validate certificate refs.
{
unsignedProperties.UnsignedSignatureProperties.CertificateValues = new CertificateValues();
certificateValues = unsignedProperties.UnsignedSignatureProperties.CertificateValues;
//certificateValues.Id = this.certificateValuesIdTextBox.Text;
//certificateValuesCounter = 0;
foreach (CertificateAndContext certificate in ctx.GetNeededCertificates())
{
encapsulatedX509Certificate = new EncapsulatedX509Certificate();
//encapsulatedX509Certificate.Id = this.certificateValuesIdTextBox.Text + certificateValuesCounter.ToString();
encapsulatedX509Certificate.PkiData = certificate.GetCertificate().GetEncoded();
//certificateValuesCounter++;
certificateValues.EncapsulatedX509CertificateCollection.Add(encapsulatedX509Certificate);
}
}
unsignedProperties = xadesSignedXml.UnsignedProperties;
unsignedProperties.UnsignedSignatureProperties.RevocationValues = new RevocationValues();
revocationValues = unsignedProperties.UnsignedSignatureProperties.RevocationValues;
//revocationValues.Id = this.revocationValuesIdTextBox.Text;
if (ctx.GetNeededOCSPResp().Count > 0)
{
foreach(BasicOcspResp ocsp in ctx.GetNeededOCSPResp())
{
newOCSPValue = new OCSPValue();
newOCSPValue.PkiData = OCSPUtils.FromBasicToResp(ocsp).GetEncoded();
revocationValues.OCSPValues.OCSPValueCollection.Add(newOCSPValue);
}
}
if (ctx.GetNeededCRL().Count > 0)
{
foreach (X509Crl crl in ctx.GetNeededCRL())
{
newCRLValue = new CRLValue();
newCRLValue.PkiData = crl.GetEncoded();
revocationValues.CRLValues.CRLValueCollection.Add(newCRLValue);
}
}
xadesSignedXml.UnsignedProperties = unsignedProperties;
}
/// <summary>
/// Add typed object to the collection
/// </summary>
/// <param name="objectToAdd">Typed object to be added to collection</param>
/// <returns>The object that has been added to collection</returns>
public XadesSignedXml Add(XadesSignedXml objectToAdd)
{
base.Add(objectToAdd);
return objectToAdd;
}
protected internal override void ExtendSignatureTag(XadesSignedXml xadesSignedXml)
{
base.ExtendSignatureTag(xadesSignedXml);
X509Certificate signingCertificate = DotNetUtilities.FromX509Certificate(
xadesSignedXml.GetSigningCertificate());
DateTime signingTime = xadesSignedXml.XadesObject.QualifyingProperties
.SignedProperties.SignedSignatureProperties.SigningTime;
ValidationContext ctx = certificateVerifier.ValidateCertificate(signingCertificate
, signingTime, new XAdESCertificateSource(xadesSignedXml.GetXml(), false), null, null);
UnsignedProperties unsignedProperties = xadesSignedXml.UnsignedProperties;
var completeCertificateRefs = new CompleteCertificateRefs();
IncorporateCertificateRefs(completeCertificateRefs, ctx);
unsignedProperties.UnsignedSignatureProperties.CompleteCertificateRefs = completeCertificateRefs;
var completeRevocationRefs = new CompleteRevocationRefs();
IncorporateOCSPRefs(completeRevocationRefs, ctx);
IncorporateCRLRefs(completeRevocationRefs, ctx);
unsignedProperties.UnsignedSignatureProperties.CompleteRevocationRefs = completeRevocationRefs;
xadesSignedXml.UnsignedProperties = unsignedProperties;
}
protected internal override void ExtendSignatureTag(XadesSignedXml xadesSignedXml)
{
base.ExtendSignatureTag(xadesSignedXml);
InjectXadesXInformation(xadesSignedXml);
}
/// <summary>
/// Construye el documento enveloped
/// </summary>
private void CreateEnvelopedDocument()
{
Reference reference = new Reference();
_xadesSignedXml = new XadesSignedXml(_document);
reference.Id = "Reference-" + Guid.NewGuid().ToString();
reference.Uri = "";
for (int i = 0; i < _document.DocumentElement.Attributes.Count; i++)
{
if (_document.DocumentElement.Attributes[i].Name.Equals("id", StringComparison.InvariantCultureIgnoreCase))
{
reference.Uri = "#" + _document.DocumentElement.Attributes[i].Value;
break;
}
}
XmlDsigEnvelopedSignatureTransform xmlDsigEnvelopedSignatureTransform = new XmlDsigEnvelopedSignatureTransform();
reference.AddTransform(xmlDsigEnvelopedSignatureTransform);
_objectReference = reference.Id;
_xadesSignedXml.AddReference(reference);
}
/// <summary>
/// Load state from an XML element
/// </summary>
/// <param name="xmlElement">XML element containing new state</param>
/// <param name="counterSignedXmlElement">Element containing parent signature (needed if there are counter signatures)</param>
public void LoadXml(System.Xml.XmlElement xmlElement, XmlElement counterSignedXmlElement)
{
XmlNamespaceManager xmlNamespaceManager;
XmlNodeList xmlNodeList;
IEnumerator enumerator;
XmlElement iterationXmlElement;
XadesSignedXml newXadesSignedXml;
TimeStamp newTimeStamp;
XmlElement counterSignatureElement;
if (xmlElement == null)
{
throw new ArgumentNullException("xmlElement");
}
xmlNamespaceManager = new XmlNamespaceManager(xmlElement.OwnerDocument.NameTable);
xmlNamespaceManager.AddNamespace("xsd", XadesSignedXml.XadesNamespaceUri);
this.counterSignatureCollection.Clear();
xmlNodeList = xmlElement.SelectNodes("xsd:CounterSignature", xmlNamespaceManager);
enumerator = xmlNodeList.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
iterationXmlElement = enumerator.Current as XmlElement;
if (iterationXmlElement != null)
{
if (counterSignedXmlElement != null)
{
newXadesSignedXml = new XadesSignedXml(counterSignedXmlElement);
}
else
{
newXadesSignedXml = new XadesSignedXml();
}
//Skip any whitespace at start
counterSignatureElement = null;
for (int childNodeCounter = 0; (childNodeCounter < iterationXmlElement.ChildNodes.Count) && (counterSignatureElement == null); childNodeCounter++)
{
if (iterationXmlElement.ChildNodes[childNodeCounter] is XmlElement)
{
counterSignatureElement = (XmlElement)iterationXmlElement.ChildNodes[childNodeCounter];
}
}
if (counterSignatureElement != null)
{
newXadesSignedXml.LoadXml(counterSignatureElement);
this.counterSignatureCollection.Add(newXadesSignedXml);
}
else
{
throw new CryptographicException("CounterSignature element does not contain signature");
}
}
}
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
this.signatureTimeStampCollection.Clear();
xmlNodeList = xmlElement.SelectNodes("xsd:SignatureTimeStamp", xmlNamespaceManager);
enumerator = xmlNodeList.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
iterationXmlElement = enumerator.Current as XmlElement;
if (iterationXmlElement != null)
{
newTimeStamp = new TimeStamp("SignatureTimeStamp");
newTimeStamp.LoadXml(iterationXmlElement);
this.signatureTimeStampCollection.Add(newTimeStamp);
}
}
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
xmlNodeList = xmlElement.SelectNodes("xsd:CompleteCertificateRefs", xmlNamespaceManager);
if (xmlNodeList.Count != 0)
{
this.completeCertificateRefs = new CompleteCertificateRefs();
this.completeCertificateRefs.LoadXml((XmlElement)xmlNodeList.Item(0));
}
else
{
this.completeCertificateRefs = null;
}
xmlNodeList = xmlElement.SelectNodes("xsd:CompleteRevocationRefs", xmlNamespaceManager);
if (xmlNodeList.Count != 0)
{
this.CompleteRevocationRefs = new CompleteRevocationRefs();
this.CompleteRevocationRefs.LoadXml((XmlElement)xmlNodeList.Item(0));
}
else
{
this.completeRevocationRefs = null;
}
this.sigAndRefsTimeStampCollection.Clear();
this.refsOnlyTimeStampCollection.Clear();
xmlNodeList = xmlElement.SelectNodes("xsd:SigAndRefsTimeStamp", xmlNamespaceManager);
if (xmlNodeList.Count > 0)
{
this.refsOnlyTimeStampFlag = false;
enumerator = xmlNodeList.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
iterationXmlElement = enumerator.Current as XmlElement;
if (iterationXmlElement != null)
{
newTimeStamp = new TimeStamp("SigAndRefsTimeStamp");
newTimeStamp.LoadXml(iterationXmlElement);
this.sigAndRefsTimeStampCollection.Add(newTimeStamp);
}
}
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
}
else
{
xmlNodeList = xmlElement.SelectNodes("xsd:RefsOnlyTimeStamp", xmlNamespaceManager);
if (xmlNodeList.Count > 0)
{
this.refsOnlyTimeStampFlag = true;
enumerator = xmlNodeList.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
iterationXmlElement = enumerator.Current as XmlElement;
if (iterationXmlElement != null)
{
newTimeStamp = new TimeStamp("RefsOnlyTimeStamp");
newTimeStamp.LoadXml(iterationXmlElement);
this.refsOnlyTimeStampCollection.Add(newTimeStamp);
}
}
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
}
else
{
this.refsOnlyTimeStampFlag = false;
}
}
xmlNodeList = xmlElement.SelectNodes("xsd:CertificateValues", xmlNamespaceManager);
if (xmlNodeList.Count != 0)
{
this.certificateValues = new CertificateValues();
this.certificateValues.LoadXml((XmlElement)xmlNodeList.Item(0));
}
else
{
this.certificateValues = null;
}
xmlNodeList = xmlElement.SelectNodes("xsd:RevocationValues", xmlNamespaceManager);
if (xmlNodeList.Count != 0)
{
this.revocationValues = new RevocationValues();
this.revocationValues.LoadXml((XmlElement)xmlNodeList.Item(0));
}
else
{
this.revocationValues = null;
}
this.archiveTimeStampCollection.Clear();
xmlNodeList = xmlElement.SelectNodes("xsd:ArchiveTimeStamp", xmlNamespaceManager);
enumerator = xmlNodeList.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
iterationXmlElement = enumerator.Current as XmlElement;
if (iterationXmlElement != null)
{
newTimeStamp = new TimeStamp("ArchiveTimeStamp");
newTimeStamp.LoadXml(iterationXmlElement);
this.archiveTimeStampCollection.Add(newTimeStamp);
}
}
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
}
/// <summary>
/// Añade una firma al documento
/// </summary>
/// <param name="certificate"></param>
/// <param name="signMethod"></param>
public void CoSign(X509Certificate2 certificate, SignMethod? signMethod = null)
{
if (_xadesSignedXml == null)
{
throw new Exception("No hay ninguna firma XADES creada previamente.");
}
if (certificate == null)
{
throw new Exception("Es necesario un certificado válido para la firma.");
}
Reference refContent = _xadesSignedXml.SignedInfo.References[0] as Reference;
if (refContent == null)
{
throw new Exception("No se ha podido encontrar la referencia del contenido firmado.");
}
if (_xadesSignedXml.XadesObject.QualifyingProperties.SignedProperties.SignedDataObjectProperties.DataObjectFormatCollection.Count > 0)
{
foreach (DataObjectFormat dof in _xadesSignedXml.XadesObject.QualifyingProperties.SignedProperties.SignedDataObjectProperties.DataObjectFormatCollection)
{
if (dof.ObjectReferenceAttribute == ("#" + refContent.Id))
{
_mimeType = dof.MimeType;
break;
}
}
}
var destination = _xadesSignedXml.GetSignatureElement().ParentNode;
_xadesSignedXml = new XadesSignedXml(_document);
refContent.Id = "Reference-" + Guid.NewGuid().ToString();
_xadesSignedXml.AddReference(refContent);
if (destination.NodeType != XmlNodeType.Document)
{
_xadesSignedXml.SignatureNodeDestination = (XmlElement)destination;
}
else
{
_xadesSignedXml.SignatureNodeDestination = ((XmlDocument)destination).DocumentElement;
}
_objectReference = refContent.Id;
SetSignatureId();
Sign(certificate, signMethod);
}
private void addCounterSignatureButton_Click(object sender, System.EventArgs e)
{
X509Certificate2 certificateForCounterSignature = this.LetUserChooseCertificate();
if (certificateForCounterSignature != null)
{
this.xadesSignedXml.SignatureValueId = this.signatureValueIdTextBox.Text;
XmlElement parentSignatureXmlElement = this.xadesSignedXml.GetXml();
XmlDocument parentSignatureXmlDocument = new XmlDocument();
parentSignatureXmlDocument.AppendChild(parentSignatureXmlDocument.ImportNode(parentSignatureXmlElement, true));
XadesSignedXml counterSignature = new XadesSignedXml(parentSignatureXmlDocument);
RSACryptoServiceProvider rsaKey = (RSACryptoServiceProvider) this.Certificate.PrivateKey;
counterSignature.SigningKey = rsaKey;
KeyInfo keyInfo = new KeyInfo();
keyInfo.AddClause(new KeyInfoX509Data((X509Certificate) certificateForCounterSignature));
keyInfo.AddClause(new RSAKeyValue(rsaKey));
counterSignature.KeyInfo = keyInfo;
Cert cert = new Cert();
cert.IssuerSerial.X509IssuerName = certificateForCounterSignature.IssuerName.Name;
cert.IssuerSerial.X509SerialNumber = certificateForCounterSignature.SerialNumber;
cert.CertDigest.DigestMethod.Algorithm = SignedXml.XmlDsigSHA1Url;
cert.CertDigest.DigestValue = certificateForCounterSignature.GetCertHash();
counterSignature.Signature.Id = "CounterSignatureId";
XadesObject counterSignatureXadesObject = new XadesObject();
counterSignatureXadesObject.Id = "CounterSignatureXadesObjectId";
counterSignatureXadesObject.QualifyingProperties.Target = "#CounterSignatureId";
counterSignatureXadesObject.QualifyingProperties.SignedProperties.Id = "CounterSignatureSignedProperiesId";
Reference newReference = new Reference();
newReference.Uri = "#" + this.xadesSignedXml.SignatureValueId;
counterSignature.AddReference(newReference);
SignedSignatureProperties signedSignatureProperties = counterSignatureXadesObject.QualifyingProperties.SignedProperties.SignedSignatureProperties;
signedSignatureProperties.SigningCertificate.CertCollection.Add(cert);
signedSignatureProperties.SigningTime = DateTime.Parse(this.signingTimeTextBox.Text);
signedSignatureProperties.SignaturePolicyIdentifier.SignaturePolicyImplied = true;
counterSignature.AddXadesObject(counterSignatureXadesObject);
counterSignature.ComputeSignature();
UnsignedProperties unsignedProperties = this.xadesSignedXml.UnsignedProperties;
unsignedProperties.UnsignedSignatureProperties.CounterSignatureCollection.Add(counterSignature);
this.xadesSignedXml.UnsignedProperties = unsignedProperties;
this.ShowSignature();
}
}
/// <summary>
/// Inserta un contenido XML para generar una firma enveloping.
/// </summary>
/// <param name="xmlDocument"></param>
public void SetContentEveloping(XmlDocument xmlDocument)
{
Reference reference = new Reference();
_xadesSignedXml = new XadesSignedXml();
XmlDocument doc = (XmlDocument)xmlDocument.Clone();
doc.PreserveWhitespace = true;
if (doc.ChildNodes[0].NodeType == XmlNodeType.XmlDeclaration)
{
doc.RemoveChild(doc.ChildNodes[0]);
}
//Add an object
string dataObjectId = "DataObject-" + Guid.NewGuid().ToString();
System.Security.Cryptography.Xml.DataObject dataObject = new System.Security.Cryptography.Xml.DataObject();
dataObject.Data = doc.ChildNodes;
dataObject.Id = dataObjectId;
_xadesSignedXml.AddObject(dataObject);
reference.Id = "Reference-" + Guid.NewGuid().ToString();
reference.Uri = "#" + dataObjectId;
reference.Type = SignedXml.XmlDsigNamespaceUrl + "Object";
XmlDsigC14NTransform transform = new XmlDsigC14NTransform();
reference.AddTransform(transform);
_objectReference = reference.Id;
_mimeType = "text/xml";
_xadesSignedXml.AddReference(reference);
_document = null;
}
private void addReferenceButton_Click(object sender, System.EventArgs e)
{
XmlDsigEnvelopedSignatureTransform xmlDsigEnvelopedSignatureTransform;
Reference reference;
reference = new Reference();
if (this.envelopedSignatureRadioButton.Checked)
{
if (this.newSignatureCheckBox.Checked)
{
this.envelopedSignatureXmlDocument = new XmlDocument();
this.documentDataObjectCounter = 1;
}
this.envelopedSignatureXmlDocument.PreserveWhitespace = true;
this.envelopedSignatureXmlDocument.Load(this.envelopingDocumentTextBox.Text);
this.xadesSignedXml = new XadesSignedXml(this.envelopedSignatureXmlDocument);
reference.Uri = "";
XmlDsigC14NTransform xmlDsigC14NTransform = new XmlDsigC14NTransform();
reference.AddTransform(xmlDsigC14NTransform);
xmlDsigEnvelopedSignatureTransform = new XmlDsigEnvelopedSignatureTransform();
reference.AddTransform(xmlDsigEnvelopedSignatureTransform);
}
else
{
if (this.newSignatureCheckBox.Checked)
{
this.xadesSignedXml = new XadesSignedXml();
this.documentDataObjectCounter = 1;
}
if (this.includedXmlRadioButton.Checked)
{
reference.Uri = "#" + this.objectIdPrefixTextBox.Text + this.documentDataObjectCounter.ToString();
reference.Type = SignedXml.XmlDsigNamespaceUrl + "Object";
//Add an object
System.Security.Cryptography.Xml.DataObject dataObject = new System.Security.Cryptography.Xml.DataObject();
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.PreserveWhitespace = true;
xmlDocument.LoadXml(this.includedXmltextBox.Text);
dataObject.Data = xmlDocument.ChildNodes;
dataObject.Id = this.objectIdPrefixTextBox.Text + this.documentDataObjectCounter.ToString();
this.xadesSignedXml.AddObject(dataObject);
}
else
{
reference.Uri = this.externalDocumentUrlTextBox.Text;
if (reference.Uri.EndsWith(".xml") || reference.Uri.EndsWith(".XML"))
{
reference.AddTransform(new XmlDsigC14NTransform());
}
}
}
this.xadesSignedXml.AddReference(reference);
this.documentDataObjectCounter++;
this.nextObjectIdSuffixLabel.Text = this.documentDataObjectCounter.ToString();
}
/// <summary>
/// Carga el documento XML especificado y establece para firmar el elemento especificado en elementId
/// </summary>
/// <param name="xmlDocument"></param>
/// <param name="elementId"></param>
/// <param name="mimeType"></param>
public void SetContentInternallyDetached(XmlDocument xmlDocument, string elementId, string mimeType)
{
_document = (XmlDocument)xmlDocument.Clone();
_document.PreserveWhitespace = true;
Reference reference = new Reference();
reference.Uri = "#" + elementId;
reference.Id = "Reference-" + Guid.NewGuid().ToString();
_objectReference = reference.Id;
_mimeType = mimeType;
if (mimeType == "text/xml")
{
XmlDsigC14NTransform transform = new XmlDsigC14NTransform();
reference.AddTransform(transform);
}
else
{
XmlDsigBase64Transform transform = new XmlDsigBase64Transform();
reference.AddTransform(transform);
}
_xadesSignedXml = new XadesSignedXml(_document);
_xadesSignedXml.AddReference(reference);
}
private void checkSignatureButton_Click(object sender, System.EventArgs e)
{
XmlDocument xmlDocument;
XmlNodeList signatureNodeList;
XadesCheckSignatureMasks composedMask;
bool checkResult;
try
{
this.signatureTypeLabel.Text = "...";
this.checkSignatureLabel.Text = "...";
this.Refresh();
xmlDocument = new XmlDocument();
xmlDocument.PreserveWhitespace = true;
xmlDocument.Load(this.signatureFileToReadTextBox.Text);
this.xadesSignedXml = new XadesSignedXml(xmlDocument.DocumentElement); //Needed if it is a enveloped signature document
signatureNodeList = xmlDocument.GetElementsByTagName("Signature");
if (signatureNodeList.Count == 0)
{
signatureNodeList = xmlDocument.GetElementsByTagName("Signature", SignedXml.XmlDsigNamespaceUrl);
}
this.xadesSignedXml.LoadXml((XmlElement)signatureNodeList[0]);
if (!this.readOnlyNoCheckcheckBox.Checked)
{
composedMask = this.ComposeMask();
checkResult = this.xadesSignedXml.XadesCheckSignature(composedMask);
this.checkSignatureLabel.Text = checkResult.ToString();
if (checkResult == false)
{
this.checkSignatureLabel.ForeColor = Color.Red;
}
else
{
this.checkSignatureLabel.ForeColor = Color.Black;
}
}
this.signatureTypeLabel.Text = this.xadesSignedXml.SignatureStandard.ToString();
this.verifyXmlRenderTree.RenderXmlNode(this.xadesSignedXml.GetXml());
}
catch (Exception exception)
{
this.signatureTypeLabel.Text = this.xadesSignedXml.SignatureStandard.ToString();
if (exception.InnerException != null)
{
MessageBox.Show("Exception: " + exception.Message + " -> " + exception.InnerException.Message);
}
else
{
MessageBox.Show("Exception: " + exception.Message);
}
}
}
/// <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);
}
private static XadesSignedXml CreateFromXmlDocument(XmlDocument envelopedSignatureXmlDocument)
{
XmlDsigEnvelopedSignatureTransform xmlDsigEnvelopedSignatureTransform;
Reference reference;
reference = new Reference();
var xadesSignedXml = new XadesSignedXml(envelopedSignatureXmlDocument);
reference.Uri = "";
reference.Id = "xml_ref_id";
//TODO jbonilla - Parameter?
//reference.DigestMethod = "http://www.w3.org/2001/04/xmlenc#sha256";
reference.DigestMethod = SignedXml.XmlDsigSHA1Url;
// ETSI TS 103 171 V2.1.1
// 6.2.4 Transforms within ds:Reference element
{
//XmlDsigC14NTransform xmlDsigC14NTransform = new XmlDsigC14NTransform();
//reference.AddTransform(xmlDsigC14NTransform);
xmlDsigEnvelopedSignatureTransform = new XmlDsigEnvelopedSignatureTransform();
reference.AddTransform(xmlDsigEnvelopedSignatureTransform);
//jbonilla - Para permitir multifirmas (co-firmas)
Dictionary<string, string> namespaces = new Dictionary<string, string>();
namespaces.Add("ds", "http://www.w3.org/2000/09/xmldsig#");
var xmlDsigXPathTransform = CreateXPathTransform("not(ancestor-or-self::ds:Signature)", namespaces);
reference.AddTransform(xmlDsigXPathTransform);
}
xadesSignedXml.AddReference(reference);
// ETSI TS 103 171 V2.1.1
// 6.2.2 Canonicalization of ds:SignedInfo element
xadesSignedXml.SignedInfo.CanonicalizationMethod = SignedXml.XmlDsigC14NTransformUrl;//"http://www.w3.org/2001/10/xml-exc-c14n#";
//xadesSignedXml.SignedInfo.SignatureMethod = "http://www.w3.org/2001/04/xmldsig-more#rsa-sha256";
xadesSignedXml.SignedInfo.SignatureMethod = SignedXml.XmlDsigRSASHA1Url;
return xadesSignedXml;
}
