private void SignXPS(string inputFile)
{
try
{
Licensing.ShowDemoMessage();
DigitalCertificate.LogOnEToken(this.DigitalSignatureCertificate);
XpsDocument xpsDocument = new XpsDocument(inputFile, FileAccess.ReadWrite);
if (!this.AllowMultipleSignatures)
{
XpsSignatureDefinition xpsSignatureDefinition = new XpsSignatureDefinition()
{
Intent = this.SigningIntent,
SigningLocale = this.SigningLocation,
SpotId = new Guid?(Guid.NewGuid())
};
IXpsFixedDocumentReader item = xpsDocument.FixedDocumentSequenceReader.FixedDocuments[0];
item.AddSignatureDefinition(xpsSignatureDefinition);
item.CommitSignatureDefinition();
X509Certificate2 digitalSignatureCertificate = this.DigitalSignatureCertificate;
Guid? spotId = xpsSignatureDefinition.SpotId;
xpsDocument.SignDigitally(digitalSignatureCertificate, true, XpsDigSigPartAlteringRestrictions.SignatureOrigin, spotId.Value);
}
else
{
xpsDocument.SignDigitally(this.DigitalSignatureCertificate, true, XpsDigSigPartAlteringRestrictions.None);
}
xpsDocument.Close();
}
catch
{
throw;
}
}
} // end:IterateSignatures()
// ------------------------------ SignXps -----------------------------
/// <summary>
/// Signs an XPS document with a given X509 certificate, and if one
/// exists, associates the signature with a given SignatureDefintion
/// spotId GUID.</summary>
/// <param name="xpsDocument">
/// The XPS document to sign.</param>
/// <param name="cert">
/// The X509 certificate to use for signing.</param>
/// <param name="spotId">
/// The nullable spotId GUID of the signature definition.</param>
public void SignXps(
XpsDocument xpsDocument, X509Certificate cert, Guid?spotId)
{
// If there's a SignatureDefinition spotId,
// associate it with the signature.
if (spotId != null)
{
xpsDocument.SignDigitally(
cert, true, XpsDigSigPartAlteringRestrictions.None,
spotId.Value);
}
else
{
xpsDocument.SignDigitally(
cert, true, XpsDigSigPartAlteringRestrictions.None);
}
} // end:SignXps()
/// <summary>
/// See IDigitalSignatureProvider
/// </summary>
void IDigitalSignatureProvider.SignDocument(DigitalSignature digitalSignature)
{
AssertIsSignable();
XpsDigSigPartAlteringRestrictions reachRestrictions = XpsDigSigPartAlteringRestrictions.None;
if (digitalSignature.IsDocumentPropertiesRestricted)
{
reachRestrictions |= XpsDigSigPartAlteringRestrictions.CoreMetadata;
}
// If additional signatures should invalidate this signature, we
// need to sign the signature origin part
if (digitalSignature.IsAddingSignaturesRestricted)
{
reachRestrictions |= XpsDigSigPartAlteringRestrictions.SignatureOrigin;
}
// a null guid means there was no associated spot, so create a guid
if (digitalSignature.GuidID == null)
{
digitalSignature.GuidID = Guid.NewGuid();
}
XpsDigitalSignature xpsDigitalSignature =
XpsDocument.SignDigitally(
digitalSignature.Certificate,
true,
reachRestrictions,
(Guid)digitalSignature.GuidID,
false /* don't re-verify IsSignable, we've already done it */
);
if (xpsDigitalSignature != null)
{
// Fill in relevant fields from the XPS signature
digitalSignature.XpsDigitalSignature = xpsDigitalSignature;
digitalSignature.SignatureState = SignatureStatus.Valid;
digitalSignature.SignedOn = xpsDigitalSignature.SigningTime;
// Save the simple name from the certificate as the subject name
// in the signature
digitalSignature.SubjectName =
digitalSignature.Certificate.GetNameInfo(
X509NameType.SimpleName,
false /* don't include issuer name */);
// Add the new signature to the list (if it isn't already there).
// That is a possibility since the first signature in a document
// is always added as a signature definition and a signature.
if (!DigitalSignatureList.Contains(digitalSignature))
{
DigitalSignatureList.Add(digitalSignature);
}
}
}
private void SignXPSStream(Stream inputStream)
{
try
{
Licensing.ShowDemoMessage();
DigitalCertificate.LogOnEToken(this.DigitalSignatureCertificate);
using (Package package = Package.Open(inputStream, FileMode.Open, FileAccess.ReadWrite))
{
string str = "memorystream://myXps.xps";
Uri uri = new Uri(str);
PackageStore.AddPackage(uri, package);
XpsDocument xpsDocument = new XpsDocument(package, CompressionOption.Maximum, str);
if (!this.AllowMultipleSignatures)
{
XpsSignatureDefinition xpsSignatureDefinition = new XpsSignatureDefinition()
{
Intent = this.SigningIntent,
SigningLocale = this.SigningLocation,
SpotId = new Guid?(Guid.NewGuid())
};
IXpsFixedDocumentReader item = xpsDocument.FixedDocumentSequenceReader.FixedDocuments[0];
item.AddSignatureDefinition(xpsSignatureDefinition);
item.CommitSignatureDefinition();
X509Certificate2 digitalSignatureCertificate = this.DigitalSignatureCertificate;
Guid? spotId = xpsSignatureDefinition.SpotId;
xpsDocument.SignDigitally(digitalSignatureCertificate, true, XpsDigSigPartAlteringRestrictions.SignatureOrigin, spotId.Value);
}
else
{
xpsDocument.SignDigitally(this.DigitalSignatureCertificate, true, XpsDigSigPartAlteringRestrictions.None);
}
PackageStore.RemovePackage(uri);
xpsDocument.Close();
}
}
catch
{
throw;
}
}
