protected XMLSignatureFactory createXMLSignatureFactory() {

		// Získání XMLSignatureFactory, která je základní třídou
		// realizující XML podpis. Název použité implementace je "DOM"

		// XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");

		XMLSignatureFactory fac = null;
		try {
			String providerName = getProvideName();
			Provider p = (Provider) Class.forName(providerName).newInstance();

			fac = XMLSignatureFactory.getInstance("DOM", p);
		} catch (Exception e) {
			handleException(e);
			fac = XMLSignatureFactory.getInstance("DOM");
		}

		return fac;
	}



	public void SOAPSignate(SOAPMessage message) {
		try {

			XMLSignatureFactory fac = createXmlSignatureFactory();

			// Vytvoření elementu KeyInfo
			final KeyInfoFactory kif = fac.getKeyInfoFactory();
			// Seznam všech dětských elementů elementu KeyInfo
			final List<XMLStructure> keyInfoList = new ArrayList<XMLStructure>();
			SOAPFactory fa = getSoapFactory();
			SOAPElement tokenreference = fa.createElement(createWsseName("SecurityTokenReference"));
			SOAPElement refx = tokenreference.addChildElement(createWsseName("Reference"));
			refx.setAttribute("URI", "#TheCert");
			refx.setAttribute("ValueType",
					"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3");
			tokenreference.setAttribute("wsu:Id", "TheSecurityTokenReference");
			keyInfoList.add(new DOMStructure(tokenreference));

			// Vytvoření elementu KeyInfo
			final KeyInfo keyInfo = kif.newKeyInfo(keyInfoList, "TheKeyInfo");

			List<String> prefix = Collections.synchronizedList(new ArrayList<String>());
			prefix.add("soap");

			C14NMethodParameterSpec cn = new ExcC14NParameterSpec(prefix);

			final CanonicalizationMethod canonicalizationMethod = fac
					.newCanonicalizationMethod(CanonicalizationMethod.EXCLUSIVE, cn);

			// Algoritmus podpisu "SHA256withRSA"

			SignatureMethod signatureMethod = fac.newSignatureMethod(
					"http://www.w3.org/2001/04/xmldsig-more#rsa-sha256", (SignatureMethodParameterSpec) null);

			// Vytvoření elementu SignedInfo
			Transform t2 = fac.newTransform(CanonicalizationMethod.EXCLUSIVE, (TransformParameterSpec) null);

			Reference reference = fac.newReference("#" + getBodyNodeId(),
					fac.newDigestMethod(DigestMethod.SHA256, null), Collections.singletonList(t2), null, null);
			final SignedInfo signedInfo = fac.newSignedInfo(canonicalizationMethod, signatureMethod,
					Collections.singletonList(reference));

			// Vytvoření elementu XMLSignature
			XMLSignature xmlSignature = fac.newXMLSignature(signedInfo, keyInfo, null, getSignatureName(), null);

			// Podepsání dokumentu

			final DOMSignContext domSignContext = new DOMSignContext(getKey(), message.getSOAPHeader().getFirstChild());
			domSignContext.putNamespacePrefix(XMLSignature.XMLNS, "ds");
			domSignContext.putNamespacePrefix("http://www.w3.org/2001/10/xml-exc-c14n#", "ec");

			xmlSignature.sign(domSignContext);
			message.saveChanges();
		} catch (Exception e) {
			handleException(e);
		}
	}