public static XmlElement GetCertificateElement(XmlElement xmlElement)
{
XmlElement signatureElement = XmlSignature.GetSignatureElement(xmlElement);
if (signatureElement == null)
{
return((XmlElement)null);
}
return((XmlElement)signatureElement.SelectSingleNode("//*[local-name(.) = 'X509Certificate' and namespace-uri(.) = 'http://www.w3.org/2000/09/xmldsig#']"));
}
public static void RemoveSignature(XmlElement xmlElement)
{
XmlElement signatureElement = XmlSignature.GetSignatureElement(xmlElement);
if (signatureElement == null)
{
return;
}
xmlElement.RemoveChild((XmlNode)signatureElement);
}
public static bool Verify(XmlElement xmlElement, AsymmetricAlgorithm signingKey, SignedXml signedXml)
{
try
{
XmlElement signatureElement = XmlSignature.GetSignatureElement(xmlElement);
if (signatureElement == null)
{
throw new SamlSignatureException("The XML does not contain a signature.");
}
signedXml.LoadXml(signatureElement);
return(signingKey == null?signedXml.CheckSignature() : signedXml.CheckSignature(signingKey));
}
catch (Exception ex)
{
throw new SamlSignatureException("Failed to verify the XML signature.", ex);
}
}
public static bool IsSigned(XmlElement xmlElement)
{
return(XmlSignature.GetSignatureElement(xmlElement) != null);
}