Hello,
I'm trying to create signed XML document with SignedXml class. As a
SigningKey I'd like to use key pair obtained from user certificate
stored in current user certificate store. I'm using WSE 2 SP 2 to get
certificate, but when I'm invoking ComputeSignature() method of
SignedXML instance I recive the following exception:
"An unhandled exception of type 'System.NotSupportedException'
occurred in microsoft.web.services2.dll
Additional information: DecryptValue"
I'd also like to mention, that when I try to export key's parameters I
recive the following exception:
"An unhandled exception of type 'System.NotSupportedException'
occurred in microsoft.web.services2.dll
Additional information: Export of private parameters is not supported"
User certificate was created with Windows 2003 Enterprice Edition's
CertSrv.
I've tryed to create certificate with and without checked "Mark keys
as exportable" and the result is the same.
What can be wrong?
Here is code listing:
// Create example data to sign.
XmlDocument document = new XmlDocument();
XmlNode node = document.CreateNodeXmlNodeType.Element, "",
"MyElement", "samples");
node.InnerText = "This is some text";
document.AppendChild(node);
// Get user certificate
X509CertificateStore store = new
X509CertificateStore(X509CertificateStore.StorePro vider.System,
X509CertificateStore.StoreLocation.CurrentUser,
X509CertificateStore.MyStore);
store.Open();
X509Certificate xCert = store.Certificates[0];
store.Close();
// Create the SignedXml message.
SignedXml signedXml = new SignedXml();
RSA key = xCert.Key;
//RSA key = RSA.Create();
//key.ImportParameters(xCert.Key.ExportParameters(tr ue));
signedXml.SigningKey = key;
// Create a data object to hold the data to sign.
DataObject dataObject = new DataObject();
dataObject.Data = document.ChildNodes;
dataObject.Id = "MyObjectId";
// Add the data object to the signature.
signedXml.AddObject(dataObject);
// Create a reference to be able to package everything into the
// message.
Reference reference = new Reference();
reference.Uri = "#MyObjectId";
// Add it to the message.
signedXml.AddReference(reference);
// Add a KeyInfo.
KeyInfo keyInfo = new KeyInfo();
keyInfo.AddClause(new RSAKeyValue(key));
signedXml.KeyInfo = keyInfo;
// Compute the signature.
signedXml.ComputeSignature();
Thanks for your replay - Karol.
