virtual protected void SignWithKeyInfo(String src, String dest, ICipherParameters pk,
AsymmetricAlgorithm publicKey, String digestAlgorithm)
{
// Creating the reader and the stamper
PdfReader reader = new PdfReader(src);
FileStream os = new FileStream(dest, FileMode.Create);
PdfStamper stamper = PdfStamper.createXmlSignature(reader, os);
// Creating the appearance
XmlSignatureAppearance appearance = stamper.XmlSignatureAppearance;
//Set XfaXmlLocator to control getting and setting Document
appearance.SetXmlLocator(new XfaXmlLocator(stamper));
// Creating the signature
IExternalSignature pks = new PrivateKeySignature(pk, digestAlgorithm);
KeyInfoClause keyInfo;
if (publicKey is DSA)
{
keyInfo = new DSAKeyValue((DSA)publicKey);
}
else if (publicKey is RSA)
{
keyInfo = new RSAKeyValue((RSA)publicKey);
}
else
{
throw new ArgumentException("Invalid public key algorithm", "publicKey");
}
MakeXmlSignature.SignXmlDSig(appearance, pks, keyInfo);
}
virtual protected void SignWithCertificate(String src, String dest, ICipherParameters pk,
X509Certificate[] chain, String digestAlgorithm)
{
// Creating the reader and the stamper
PdfReader reader = new PdfReader(src);
FileStream os = new FileStream(dest, FileMode.Create);
PdfStamper stamper = PdfStamper.createXmlSignature(reader, os);
// Creating the appearance
XmlSignatureAppearance appearance = stamper.XmlSignatureAppearance;
appearance.SetXmlLocator(new XfaXmlLocator(stamper));
// Creating the signature
IExternalSignature pks = new PrivateKeySignature(pk, digestAlgorithm);
MakeXmlSignature.SignXmlDSig(appearance, pks, chain);
}
virtual protected void SignWithPublicKey(String src, String dest, ICipherParameters pk,
AsymmetricAlgorithm publicKey, String digestAlgorithm)
{
// Creating the reader and the stamper
PdfReader reader = new PdfReader(src);
FileStream os = new FileStream(dest, FileMode.Create);
PdfStamper stamper = PdfStamper.createXmlSignature(reader, os);
// Creating the appearance
XmlSignatureAppearance appearance = stamper.XmlSignatureAppearance;
//Set XfaXmlLocator to control getting and setting Document
appearance.SetXmlLocator(new XfaXmlLocator(stamper));
// Creating the signature
IExternalSignature pks = new PrivateKeySignature(pk, digestAlgorithm);
MakeXmlSignature.SignXmlDSig(appearance, pks, publicKey);
}
virtual protected void SignXades(String src, String dest, ICipherParameters pk,
X509Certificate[] chain, String digestAlgorithm, bool includeSignaturePolicy)
{
// Creating the reader and the stamper
PdfReader reader = new PdfReader(src);
FileStream os = new FileStream(dest, FileMode.Create);
PdfStamper stamper = PdfStamper.createXmlSignature(reader, os);
// Creating the appearance
XmlSignatureAppearance appearance = stamper.XmlSignatureAppearance;
appearance.SetXmlLocator(new XfaXmlLocator(stamper));
appearance.SetDescription("Simple xfa form");
// Creating the signature
IExternalSignature pks = new PrivateKeySignature(pk, digestAlgorithm);
MakeXmlSignature.SignXades(appearance, pks, chain, includeSignaturePolicy);
}
virtual protected void SignPackageWithCertificate(String src, String dest, XfaXpathConstructor.XdpPackage xdpPackage,
ICipherParameters pk, X509Certificate[] chain, String digestAlgorithm)
{
// Creating the reader and the stamper
PdfReader reader = new PdfReader(src);
FileStream os = new FileStream(dest, FileMode.Create);
PdfStamper stamper = PdfStamper.createXmlSignature(reader, os);
// Creating the appearance
XmlSignatureAppearance appearance = stamper.XmlSignatureAppearance;
//Set XfaXmlLocator to control getting and setting Document
appearance.SetXmlLocator(new XfaXmlLocator(stamper));
// Set XpathConstructor, to construct xpath expression for signing an xdp package
appearance.SetXpathConstructor(new XfaXpathConstructor(xdpPackage));
// Creating the signature
IExternalSignature pks = new PrivateKeySignature(pk, digestAlgorithm);
MakeXmlSignature.SignXmlDSig(appearance, pks, chain);
}
