javax.xml.crypto.MarshalException Java Examples

public static void main(String[] args) throws SAXException, IOException, ParserConfigurationException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, KeyException, MarshalException, XMLSignatureException, FHIRException {
  // http://docs.oracle.com/javase/7/docs/technotes/guides/security/xmldsig/XMLDigitalSignature.html
  //
  byte[] inputXml = "<Envelope xmlns=\"urn:envelope\">\r\n</Envelope>\r\n".getBytes();
  // load the document that's going to be signed
  DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
  dbf.setNamespaceAware(true);
  DocumentBuilder builder = dbf.newDocumentBuilder();  
  Document doc = builder.parse(new ByteArrayInputStream(inputXml)); 
  
  // create a key pair
  KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
  kpg.initialize(512);
  KeyPair kp = kpg.generateKeyPair(); 
  
  // sign the document
  DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), doc.getDocumentElement()); 
  XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM"); 
 
  Reference ref = fac.newReference("", fac.newDigestMethod(DigestMethod.SHA1, null), Collections.singletonList(fac.newTransform(Transform.ENVELOPED, (TransformParameterSpec) null)), null, null);
  SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec) null), fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), Collections.singletonList(ref));
  
  KeyInfoFactory kif = fac.getKeyInfoFactory(); 
  KeyValue kv = kif.newKeyValue(kp.getPublic());
  KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv));
  XMLSignature signature = fac.newXMLSignature(si, ki); 
  signature.sign(dsc);
  
  OutputStream os = System.out;
  new XmlGenerator().generate(doc.getDocumentElement(), os);
}
 

public static void main(String[] args) throws SAXException, IOException, ParserConfigurationException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, KeyException, MarshalException, XMLSignatureException, FHIRException, org.hl7.fhir.exceptions.FHIRException {
  // http://docs.oracle.com/javase/7/docs/technotes/guides/security/xmldsig/XMLDigitalSignature.html
  //
  byte[] inputXml = "<Envelope xmlns=\"urn:envelope\">\r\n</Envelope>\r\n".getBytes();
  // load the document that's going to be signed
  DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
  dbf.setNamespaceAware(true);
  DocumentBuilder builder = dbf.newDocumentBuilder();  
  Document doc = builder.parse(new ByteArrayInputStream(inputXml)); 
  
  // create a key pair
  KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
  kpg.initialize(512);
  KeyPair kp = kpg.generateKeyPair(); 
  
  // sign the document
  DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), doc.getDocumentElement()); 
  XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM"); 
 
  Reference ref = fac.newReference("", fac.newDigestMethod(DigestMethod.SHA1, null), Collections.singletonList(fac.newTransform(Transform.ENVELOPED, (TransformParameterSpec) null)), null, null);
  SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec) null), fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), Collections.singletonList(ref));
  
  KeyInfoFactory kif = fac.getKeyInfoFactory(); 
  KeyValue kv = kif.newKeyValue(kp.getPublic());
  KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv));
  XMLSignature signature = fac.newXMLSignature(si, ki); 
  signature.sign(dsc);
  
  OutputStream os = System.out;
  new XmlGenerator().generate(doc.getDocumentElement(), os);
}
 

private void signRequest(Element requestElement, PrivateKey privateKey, Object keyInfoValue) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, MarshalException, XMLSignatureException, KeyException {
   DOMSignContext domSignContext = new DOMSignContext(privateKey, requestElement, requestElement.getFirstChild());
   String requestId = requestElement.getAttribute("RequestID");
   requestElement.setIdAttribute("RequestID", true);
   List<Transform> transforms = new LinkedList();
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2000/09/xmldsig#enveloped-signature", (TransformParameterSpec)null));
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null));
   Reference reference = xmlSignatureFactory.newReference("#" + requestId, xmlSignatureFactory.newDigestMethod("http://www.w3.org/2000/09/xmldsig#sha1", (DigestMethodParameterSpec)null), transforms, (String)null, (String)null);
   CanonicalizationMethod canonicalizationMethod = xmlSignatureFactory.newCanonicalizationMethod("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null);
   SignatureMethod signatureMethod = xmlSignatureFactory.newSignatureMethod("http://www.w3.org/2000/09/xmldsig#rsa-sha1", (SignatureMethodParameterSpec)null);
   SignedInfo signedInfo = xmlSignatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod, Collections.singletonList(reference));
   KeyInfoFactory keyInfoFactory = xmlSignatureFactory.getKeyInfoFactory();
   KeyInfo keyInfo = null;
   if (keyInfoValue instanceof PublicKey) {
      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newKeyValue((PublicKey)keyInfoValue)));
   } else {
      if (!(keyInfoValue instanceof X509Certificate)) {
         throw new IllegalArgumentException("Unsupported keyinfo type [" + keyInfoValue.getClass() + "]");
      }

      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newX509Data(Collections.singletonList(keyInfoValue))));
   }

   XMLSignature xmlSignature = xmlSignatureFactory.newXMLSignature(signedInfo, keyInfo);
   xmlSignature.sign(domSignContext);
}
 

/**
 * This method invokes the {@link #marshalParams marshalParams}
 * method to marshal any algorithm-specific parameters.
 */
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
    throws MarshalException
{
    Document ownerDoc = DOMUtils.getOwnerDocument(parent);

    Element smElem = DOMUtils.createElement(ownerDoc, "SignatureMethod",
                                            XMLSignature.XMLNS, dsPrefix);
    DOMUtils.setAttribute(smElem, "Algorithm", getAlgorithm());

    if (getParameterSpec() != null) {
        marshalParams(smElem, dsPrefix);
    }

    parent.appendChild(smElem);
}
 

/**
 * This method invokes the {@link #marshalParams marshalParams}
 * method to marshal any algorithm-specific parameters.
 */
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
    throws MarshalException
{
    Document ownerDoc = DOMUtils.getOwnerDocument(parent);

    Element smElem = DOMUtils.createElement(ownerDoc, "SignatureMethod",
                                            XMLSignature.XMLNS, dsPrefix);
    DOMUtils.setAttribute(smElem, "Algorithm", getAlgorithm());

    if (getParameterSpec() != null) {
        marshalParams(smElem, dsPrefix);
    }

    parent.appendChild(smElem);
}
 

private void signRequest(Element requestElement, PrivateKey privateKey, Object keyInfoValue) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, MarshalException, XMLSignatureException, KeyException {
   DOMSignContext domSignContext = new DOMSignContext(privateKey, requestElement, requestElement.getFirstChild());
   String requestId = requestElement.getAttribute("RequestID");
   requestElement.setIdAttribute("RequestID", true);
   List<Transform> transforms = new LinkedList();
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2000/09/xmldsig#enveloped-signature", (TransformParameterSpec)null));
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null));
   Reference reference = xmlSignatureFactory.newReference("#" + requestId, xmlSignatureFactory.newDigestMethod("http://www.w3.org/2000/09/xmldsig#sha1", (DigestMethodParameterSpec)null), transforms, (String)null, (String)null);
   CanonicalizationMethod canonicalizationMethod = xmlSignatureFactory.newCanonicalizationMethod("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null);
   SignatureMethod signatureMethod = xmlSignatureFactory.newSignatureMethod("http://www.w3.org/2000/09/xmldsig#rsa-sha1", (SignatureMethodParameterSpec)null);
   SignedInfo signedInfo = xmlSignatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod, Collections.singletonList(reference));
   KeyInfoFactory keyInfoFactory = xmlSignatureFactory.getKeyInfoFactory();
   KeyInfo keyInfo = null;
   if (keyInfoValue instanceof PublicKey) {
      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newKeyValue((PublicKey)keyInfoValue)));
   } else {
      if (!(keyInfoValue instanceof X509Certificate)) {
         throw new IllegalArgumentException("Unsupported keyinfo type [" + keyInfoValue.getClass() + "]");
      }

      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newX509Data(Collections.singletonList(keyInfoValue))));
   }

   XMLSignature xmlSignature = xmlSignatureFactory.newXMLSignature(signedInfo, keyInfo);
   xmlSignature.sign(domSignContext);
}
 

/**
 * This method invokes the {@link #marshalParams marshalParams}
 * method to marshal any algorithm-specific parameters.
 */
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
    throws MarshalException
{
    Document ownerDoc = DOMUtils.getOwnerDocument(parent);

    Element smElem = DOMUtils.createElement(ownerDoc, "SignatureMethod",
                                            XMLSignature.XMLNS, dsPrefix);
    DOMUtils.setAttribute(smElem, "Algorithm", getAlgorithm());

    if (getParameterSpec() != null) {
        marshalParams(smElem, dsPrefix);
    }

    parent.appendChild(smElem);
}
 

private void signRequest(Element requestElement, PrivateKey privateKey, Object keyInfoValue) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, MarshalException, XMLSignatureException, KeyException {
   DOMSignContext domSignContext = new DOMSignContext(privateKey, requestElement, requestElement.getFirstChild());
   String requestId = requestElement.getAttribute("RequestID");
   requestElement.setIdAttribute("RequestID", true);
   List<Transform> transforms = new LinkedList();
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2000/09/xmldsig#enveloped-signature", (TransformParameterSpec)null));
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null));
   Reference reference = xmlSignatureFactory.newReference("#" + requestId, xmlSignatureFactory.newDigestMethod("http://www.w3.org/2000/09/xmldsig#sha1", (DigestMethodParameterSpec)null), transforms, (String)null, (String)null);
   CanonicalizationMethod canonicalizationMethod = xmlSignatureFactory.newCanonicalizationMethod("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null);
   SignatureMethod signatureMethod = xmlSignatureFactory.newSignatureMethod("http://www.w3.org/2000/09/xmldsig#rsa-sha1", (SignatureMethodParameterSpec)null);
   SignedInfo signedInfo = xmlSignatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod, Collections.singletonList(reference));
   KeyInfoFactory keyInfoFactory = xmlSignatureFactory.getKeyInfoFactory();
   KeyInfo keyInfo = null;
   if (keyInfoValue instanceof PublicKey) {
      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newKeyValue((PublicKey)keyInfoValue)));
   } else {
      if (!(keyInfoValue instanceof X509Certificate)) {
         throw new IllegalArgumentException("Unsupported keyinfo type [" + keyInfoValue.getClass() + "]");
      }

      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newX509Data(Collections.singletonList(keyInfoValue))));
   }

   XMLSignature xmlSignature = xmlSignatureFactory.newXMLSignature(signedInfo, keyInfo);
   xmlSignature.sign(domSignContext);
}
 

private void signRequest(Element requestElement, PrivateKey privateKey, Object keyInfoValue) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, MarshalException, XMLSignatureException, KeyException {
   DOMSignContext domSignContext = new DOMSignContext(privateKey, requestElement, requestElement.getFirstChild());
   String requestId = requestElement.getAttribute("RequestID");
   requestElement.setIdAttribute("RequestID", true);
   List<Transform> transforms = new LinkedList();
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2000/09/xmldsig#enveloped-signature", (TransformParameterSpec)null));
   transforms.add(xmlSignatureFactory.newTransform("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null));
   Reference reference = xmlSignatureFactory.newReference("#" + requestId, xmlSignatureFactory.newDigestMethod("http://www.w3.org/2000/09/xmldsig#sha1", (DigestMethodParameterSpec)null), transforms, (String)null, (String)null);
   CanonicalizationMethod canonicalizationMethod = xmlSignatureFactory.newCanonicalizationMethod("http://www.w3.org/2001/10/xml-exc-c14n#", (C14NMethodParameterSpec)null);
   SignatureMethod signatureMethod = xmlSignatureFactory.newSignatureMethod("http://www.w3.org/2000/09/xmldsig#rsa-sha1", (SignatureMethodParameterSpec)null);
   SignedInfo signedInfo = xmlSignatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod, Collections.singletonList(reference));
   KeyInfoFactory keyInfoFactory = xmlSignatureFactory.getKeyInfoFactory();
   KeyInfo keyInfo = null;
   if (keyInfoValue instanceof PublicKey) {
      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newKeyValue((PublicKey)keyInfoValue)));
   } else {
      if (!(keyInfoValue instanceof X509Certificate)) {
         throw new IllegalArgumentException("Unsupported keyinfo type [" + keyInfoValue.getClass() + "]");
      }

      keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyInfoFactory.newX509Data(Collections.singletonList(keyInfoValue))));
   }

   XMLSignature xmlSignature = xmlSignatureFactory.newXMLSignature(signedInfo, keyInfo);
   xmlSignature.sign(domSignContext);
}
 

/**
 * This method invokes the {@link #marshalParams marshalParams}
 * method to marshal any algorithm-specific parameters.
 */
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
    throws MarshalException
{
    Document ownerDoc = DOMUtils.getOwnerDocument(parent);

    Element smElem = DOMUtils.createElement(ownerDoc, "SignatureMethod",
                                            XMLSignature.XMLNS, dsPrefix);
    DOMUtils.setAttribute(smElem, "Algorithm", getAlgorithm());

    if (getParameterSpec() != null) {
        marshalParams(smElem, dsPrefix);
    }

    parent.appendChild(smElem);
}
 

/**
 * This method invokes the {@link #marshalParams marshalParams}
 * method to marshal any algorithm-specific parameters.
 */
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
    throws MarshalException
{
    Document ownerDoc = DOMUtils.getOwnerDocument(parent);

    Element smElem = DOMUtils.createElement(ownerDoc, "SignatureMethod",
                                            XMLSignature.XMLNS, dsPrefix);
    DOMUtils.setAttribute(smElem, "Algorithm", getAlgorithm());

    if (getParameterSpec() != null) {
        marshalParams(smElem, dsPrefix);
    }

    parent.appendChild(smElem);
}
 

private static String assinaDocCTe(ConfiguracoesCte config, String xml, AssinaturaEnum tipoAssinatura) throws CteException {

        try {
            Document document = documentFactory(xml);
            XMLSignatureFactory signatureFactory = XMLSignatureFactory.getInstance("DOM");
            ArrayList<Transform> transformList = signatureFactory(signatureFactory);
            loadCertificates(config, signatureFactory);

            if (tipoAssinatura.equals(AssinaturaEnum.EVENTO) || tipoAssinatura.equals(AssinaturaEnum.CTE_OS)) {
                assinarCTe(tipoAssinatura, signatureFactory, transformList, privateKey, keyInfo, document, 0);
            } else {
                for (int i = 0; i < document.getDocumentElement().getElementsByTagName(tipoAssinatura.getTipo()).getLength(); i++) {
                    assinarCTe(tipoAssinatura, signatureFactory, transformList, privateKey, keyInfo, document, i);
                }
            }

            return outputXML(document);
        } catch (SAXException | IOException | ParserConfigurationException | NoSuchAlgorithmException
                | InvalidAlgorithmParameterException | KeyStoreException | UnrecoverableEntryException
                | CertificadoException | MarshalException
                | XMLSignatureException e) {
            throw new CteException("Erro ao Assinar Cte" + e.getMessage());
        }
    }
 

/**
 * This method invokes the {@link #marshalParams marshalParams}
 * method to marshal any algorithm-specific parameters.
 */
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
    throws MarshalException
{
    Document ownerDoc = DOMUtils.getOwnerDocument(parent);

    Element smElem = DOMUtils.createElement(ownerDoc, "SignatureMethod",
                                            XMLSignature.XMLNS, dsPrefix);
    DOMUtils.setAttribute(smElem, "Algorithm", getAlgorithm());

    if (getParameterSpec() != null) {
        marshalParams(smElem, dsPrefix);
    }

    parent.appendChild(smElem);
}
 

public TrustAddressGeneratorTest() throws IOException, MarshalException, ParserConfigurationException, SAXException, XMLSignatureException {
    InputStream input = new FileInputStream("src/test/ts/EntryToken.tsml");
    XMLDSigVerifier sigVerifier = new XMLDSigVerifier();
    XMLSignature signature = sigVerifier.getValidXMLSignature(input);
    InputStream digest = signature.getSignedInfo().getCanonicalizedData();
    this.digest = convertHexToBase64String(Numeric.toHexString(getBytesFromInputStream(digest)));
}
 

XMLSignature getValidXMLSignature(InputStream fileStream)
        throws ParserConfigurationException,
        IOException,
        SAXException,
        MarshalException,
        XMLSignatureException,
        DOMException
{
    DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
    dbFactory.setNamespaceAware(true);
    DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
    Document xml = dBuilder.parse(fileStream);
    xml.getDocumentElement().normalize();

    // Find Signature element
    NodeList nl = xml.getElementsByTagNameNS(XMLSignature.XMLNS, "Signature");
    if (nl.getLength() == 0)
    {
        throw new DOMException(DOMException.INDEX_SIZE_ERR, "Missing elements");
    }

    // Create a DOM XMLSignatureFactory that will be used to unmarshal the
    // document containing the XMLSignature
    XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");

    // Create a DOMValidateContext and specify a KeyValue KeySelector
    // and document context
    DOMValidateContext valContext = new DOMValidateContext(new SigningCertSelector(), nl.item(0));

    // unmarshal the XMLSignature
    XMLSignature signature = fac.unmarshalXMLSignature(valContext);

    boolean validSig = signature.validate(valContext);
    if(!validSig)
    {
        throw new XMLSignatureException("Invalid XML signature");
    }
    return signature;
}
 

public static void main(String[] args) throws SAXException, IOException, ParserConfigurationException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, KeyException, MarshalException, XMLSignatureException, FHIRException, org.hl7.fhir.exceptions.FHIRException {
  // http://docs.oracle.com/javase/7/docs/technotes/guides/security/xmldsig/XMLDigitalSignature.html
  //
  byte[] inputXml = "<Envelope xmlns=\"urn:envelope\">\r\n</Envelope>\r\n".getBytes();
  // load the document that's going to be signed
  DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
  dbf.setNamespaceAware(true);
  DocumentBuilder builder = dbf.newDocumentBuilder();  
  Document doc = builder.parse(new ByteArrayInputStream(inputXml)); 
  
  // create a key pair
  KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
  kpg.initialize(512);
  KeyPair kp = kpg.generateKeyPair(); 
  
  // sign the document
  DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), doc.getDocumentElement()); 
  XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM"); 
 
  Reference ref = fac.newReference("", fac.newDigestMethod(DigestMethod.SHA1, null), Collections.singletonList(fac.newTransform(Transform.ENVELOPED, (TransformParameterSpec) null)), null, null);
  SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec) null), fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), Collections.singletonList(ref));
  
  KeyInfoFactory kif = fac.getKeyInfoFactory(); 
  KeyValue kv = kif.newKeyValue(kp.getPublic());
  KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv));
  XMLSignature signature = fac.newXMLSignature(si, ki); 
  signature.sign(dsc);
  
  OutputStream os = System.out;
  new XmlGenerator().generate(doc.getDocumentElement(), os);
}
 

public abstract void marshal(Node parent, String dsPrefix,
DOMCryptoContext context) throws MarshalException;
 

public abstract void marshal(Node parent, String dsPrefix,
DOMCryptoContext context) throws MarshalException;
 

public abstract void marshal(Node parent, String dsPrefix,
DOMCryptoContext context) throws MarshalException;
 

public abstract void marshal(Node parent, String dsPrefix,
DOMCryptoContext context) throws MarshalException;
 

public abstract void marshal(Node parent, String dsPrefix,
DOMCryptoContext context) throws MarshalException;
 

public abstract void marshal(Node parent, String dsPrefix,
DOMCryptoContext context) throws MarshalException;
 

/**
 * Marshals the algorithm-specific parameters to an Element and
 * appends it to the specified parent element. By default, this method
 * throws an exception since most SignatureMethod algorithms do not have
 * parameters. Subclasses should override it if they have parameters.
 *
 * @param parent the parent element to append the parameters to
 * @param paramsPrefix the algorithm parameters prefix to use
 * @throws MarshalException if the parameters cannot be marshalled
 */
void marshalParams(Element parent, String paramsPrefix)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Unmarshals <code>SignatureMethodParameterSpec</code> from the specified
 * <code>Element</code>. By default, this method throws an exception since
 * most SignatureMethod algorithms do not have parameters. Subclasses should
 * override it if they have parameters.
 *
 * @param paramsElem the <code>Element</code> holding the input params
 * @return the algorithm-specific <code>SignatureMethodParameterSpec</code>
 * @throws MarshalException if the parameters cannot be unmarshalled
 */
SignatureMethodParameterSpec unmarshalParams(Element paramsElem)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Unmarshals <code>SignatureMethodParameterSpec</code> from the specified
 * <code>Element</code>. By default, this method throws an exception since
 * most SignatureMethod algorithms do not have parameters. Subclasses should
 * override it if they have parameters.
 *
 * @param paramsElem the <code>Element</code> holding the input params
 * @return the algorithm-specific <code>SignatureMethodParameterSpec</code>
 * @throws MarshalException if the parameters cannot be unmarshalled
 */
SignatureMethodParameterSpec unmarshalParams(Element paramsElem)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Marshals the algorithm-specific parameters to an Element and
 * appends it to the specified parent element. By default, this method
 * throws an exception since most SignatureMethod algorithms do not have
 * parameters. Subclasses should override it if they have parameters.
 *
 * @param parent the parent element to append the parameters to
 * @param paramsPrefix the algorithm parameters prefix to use
 * @throws MarshalException if the parameters cannot be marshalled
 */
void marshalParams(Element parent, String paramsPrefix)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Unmarshals <code>SignatureMethodParameterSpec</code> from the specified
 * <code>Element</code>. By default, this method throws an exception since
 * most SignatureMethod algorithms do not have parameters. Subclasses should
 * override it if they have parameters.
 *
 * @param paramsElem the <code>Element</code> holding the input params
 * @return the algorithm-specific <code>SignatureMethodParameterSpec</code>
 * @throws MarshalException if the parameters cannot be unmarshalled
 */
SignatureMethodParameterSpec unmarshalParams(Element paramsElem)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Marshals the algorithm-specific parameters to an Element and
 * appends it to the specified parent element. By default, this method
 * throws an exception since most SignatureMethod algorithms do not have
 * parameters. Subclasses should override it if they have parameters.
 *
 * @param parent the parent element to append the parameters to
 * @param paramsPrefix the algorithm parameters prefix to use
 * @throws MarshalException if the parameters cannot be marshalled
 */
void marshalParams(Element parent, String paramsPrefix)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Marshals the algorithm-specific parameters to an Element and
 * appends it to the specified parent element. By default, this method
 * throws an exception since most SignatureMethod algorithms do not have
 * parameters. Subclasses should override it if they have parameters.
 *
 * @param parent the parent element to append the parameters to
 * @param paramsPrefix the algorithm parameters prefix to use
 * @throws MarshalException if the parameters cannot be marshalled
 */
void marshalParams(Element parent, String paramsPrefix)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}
 

/**
 * Unmarshals <code>SignatureMethodParameterSpec</code> from the specified
 * <code>Element</code>. By default, this method throws an exception since
 * most SignatureMethod algorithms do not have parameters. Subclasses should
 * override it if they have parameters.
 *
 * @param paramsElem the <code>Element</code> holding the input params
 * @return the algorithm-specific <code>SignatureMethodParameterSpec</code>
 * @throws MarshalException if the parameters cannot be unmarshalled
 */
SignatureMethodParameterSpec unmarshalParams(Element paramsElem)
    throws MarshalException
{
    throw new MarshalException("no parameters should " +
                               "be specified for the " + getAlgorithm() +
                               " SignatureMethod algorithm");
}