public static string SignXmlFile(string xml, RSA Key)
{
// Create a new XML document.
var doc = new XmlDocument();
// Format the document to ignore white spaces.
doc.PreserveWhitespace = false;
using (var textReader = new StringReader(xml))
{
doc.Load(new XmlTextReader(textReader));
}
// Create a SignedXml object.
var signedXml = new SignedXmlWithId(doc);
// Add the key to the SignedXml document.
signedXml.SigningKey = Key;
// Specify a canonicalization method.
signedXml.SignedInfo.CanonicalizationMethod = SignedXml.XmlDsigExcC14NTransformUrl;
// Set the InclusiveNamespacesPrefixList property.
var canMethod = (XmlDsigExcC14NTransform)signedXml.SignedInfo.CanonicalizationMethodObject;
var ref1 = new Reference("#Body52be6364-045f-1550-625d-b20b0390691e");
var ref2 = new Reference("#Timestamp5257ab43-882c-4937-3835-6763e9a2d700");
// Add an enveloped transformation to the reference.
var env = new XmlDsigEnvelopedSignatureTransform();
ref1.AddTransform(canMethod);
ref2.AddTransform(canMethod);
// Add the reference to the SignedXml object.
signedXml.AddReference(ref1);
signedXml.AddReference(ref2);
string keyInfoStr = "<KeyInfo><wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\"><wsse:Reference URI=\"#holderOfKeyCertificate\" ValueType=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3\"/></wsse:SecurityTokenReference></KeyInfo>";
var xd = new XmlDocument();
xd.LoadXml(keyInfoStr);
var ki = new KeyInfo();
ki.LoadXml(xd.DocumentElement);
signedXml.KeyInfo = ki;
// Compute the signature.
//signedXml.ComputeSignature(KeyedHashAlgorithm.Create("HMACSHA256"));
signedXml.ComputeSignature();
// Get the XML representation of the signature and save
// it to an XmlElement object.
XmlElement xmlDigitalSignature = signedXml.GetXml();
xmlDigitalSignature.SetAttribute("Id", "holderOfKeyProofSignature");
var sb = new StringBuilder();
using (var sw = new StringWriter(sb))
{
using (var writer = new XmlTextWriter(sw))
{
xmlDigitalSignature.WriteTo(writer);
}
}
return sb.ToString();
}
public static string SignXmlFile(string xml, RSA Key)
{
// Create a new XML document.
var doc = new XmlDocument();
// Format the document to ignore white spaces.
doc.PreserveWhitespace = false;
using (var textReader = new StringReader(xml))
{
doc.Load(new XmlTextReader(textReader));
}
// Create a SignedXml object.
var signedXml = new SignedXmlWithId(doc);
// Add the key to the SignedXml document.
signedXml.SigningKey = Key;
// Specify a canonicalization method.
signedXml.SignedInfo.CanonicalizationMethod = SignedXml.XmlDsigExcC14NTransformUrl;
// Set the InclusiveNamespacesPrefixList property.
var canMethod = (XmlDsigExcC14NTransform)signedXml.SignedInfo.CanonicalizationMethodObject;
var ref1 = new Reference("#Body52be6364-045f-1550-625d-b20b0390691e");
var ref2 = new Reference("#Timestamp5257ab43-882c-4937-3835-6763e9a2d700");
// Add an enveloped transformation to the reference.
var env = new XmlDsigEnvelopedSignatureTransform();
ref1.AddTransform(canMethod);
ref2.AddTransform(canMethod);
// Add the reference to the SignedXml object.
signedXml.AddReference(ref1);
signedXml.AddReference(ref2);
string keyInfoStr = "<KeyInfo><wsse:SecurityTokenReference xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\"><wsse:Reference URI=\"#holderOfKeyCertificate\" ValueType=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3\"/></wsse:SecurityTokenReference></KeyInfo>";
var xd = new XmlDocument();
xd.LoadXml(keyInfoStr);
var ki = new KeyInfo();
ki.LoadXml(xd.DocumentElement);
signedXml.KeyInfo = ki;
// Compute the signature.
//signedXml.ComputeSignature(KeyedHashAlgorithm.Create("HMACSHA256"));
signedXml.ComputeSignature();
// Get the XML representation of the signature and save
// it to an XmlElement object.
XmlElement xmlDigitalSignature = signedXml.GetXml();
xmlDigitalSignature.SetAttribute("Id", "holderOfKeyProofSignature");
var sb = new StringBuilder();
using (var sw = new StringWriter(sb))
{
using (var writer = new XmlTextWriter(sw))
{
xmlDigitalSignature.WriteTo(writer);
}
}
return(sb.ToString());
}
