final JAXBSignContext signContext = new JAXBSignContext(signingKey);
final SSEData data = null;
signContext.setURIDereferencer(new DSigResolver(data));
final com.sun.xml.ws.security.opt.crypto.dsig.Signature signature = (Signature) signatureFactory.newXMLSignature(signedInfo,keyInfo);
final JAXBSignatureHeaderElement jhe = new JAXBSignatureHeaderElement(signature,soapVersion,(XMLSignContext)signContext);
return new EnvelopedSignedMessageHeader(samlToken,(com.sun.xml.ws.security.opt.crypto.dsig.Reference) ref, jhe,nsContext);
// } catch (KeyException ex) {
// ex.printStackTrace();
// throw new WSTrustException("Unable to create sign SAML Assertion",ex);
// }