javax.xml.crypto.dsig.spec.C14NMethodParameterSpec 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);
}
 

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 SignedInfo initSignedInfo(XMLSignatureFactory fac) throws Exception {
        Reference ref = initReference(fac);
        String cm = null;
        cm = map.getProperty(CANONICALIZATIONMETHOD);
        String sigmethod = null;
        sigmethod = map.getProperty(SIGNATURE_METHOD);
        if (sigmethod == null) {
                sigmethod = SignatureMethod.RSA_SHA1;
        }
        if (cm == null) {
                cm = CanonicalizationMethod.EXCLUSIVE;
        }
        SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(
                cm,
                (C14NMethodParameterSpec) null),
                fac.newSignatureMethod(sigmethod,
                        null), Collections.singletonList(ref));
        return si;
}
 

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);
}
 

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);
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

public Document sign(FileInputStream fileStream, KeyPair keyPair)
        throws ParserConfigurationException, SAXException, IOException,
        NoSuchAlgorithmException, InvalidAlgorithmParameterException,
        KeyException, MarshalException, XMLSignatureException {

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);

    DocumentBuilder builder = factory.newDocumentBuilder();
    Document document = builder.parse(fileStream);

    DOMSignContext signContext = new DOMSignContext(keyPair.getPrivate(),
            document.getDocumentElement());
    XMLSignatureFactory signFactory = XMLSignatureFactory
            .getInstance("DOM");
    Reference ref = signFactory.newReference("", signFactory
            .newDigestMethod(digestMethod, null), Collections
            .singletonList(signFactory.newTransform(Transform.ENVELOPED,
                    (TransformParameterSpec) null)), null, null);
    SignedInfo si = signFactory.newSignedInfo(signFactory
            .newCanonicalizationMethod(
                    CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS,
                    (C14NMethodParameterSpec) null), signFactory
            .newSignatureMethod(signatureMethod, null), Collections
            .singletonList(ref));

    KeyInfoFactory kif = signFactory.getKeyInfoFactory();
    KeyValue kv = kif.newKeyValue(keyPair.getPublic());
    KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv));

    XMLSignature signature = signFactory.newXMLSignature(si, ki);
    signature.sign(signContext);

    return document;
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

private void setup() throws Exception {
    ss = new ServerSocket(0);
    Thread thr = new Thread(this);
    thr.start();

    fac = XMLSignatureFactory.getInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    db = dbf.newDocumentBuilder();
    sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
    withoutComments = fac.newCanonicalizationMethod
        (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
}
 

private SignedInfo initSignedInfo(XMLSignatureFactory fac) throws Exception {
    Reference ref = initReference(fac);
    SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.EXCLUSIVE,
            (C14NMethodParameterSpec) null),
            fac.newSignatureMethod(SignatureMethod.RSA_SHA1,
            null),
            Collections.singletonList(ref));
    return si;
}
 

/**
 * Sign the XML document using xmldsig.
 * @param document the document to sign; it will be modified by the method.
 * @param publicKey the public key from the key pair to sign the document.
 * @param privateKey the private key from the key pair to sign the document.
 * @return the signed document for chaining.
 */
public static Document sign(Document document, RSAPublicKey publicKey, RSAPrivateKey privateKey) {
    XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");
    KeyInfoFactory keyInfoFactory = fac.getKeyInfoFactory();

    try {
        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));
        DOMSignContext dsc = new DOMSignContext(privateKey, document.getDocumentElement());
        KeyValue keyValue = keyInfoFactory.newKeyValue(publicKey);
        KeyInfo ki = keyInfoFactory.newKeyInfo(Collections.singletonList(keyValue));
        XMLSignature signature = fac.newXMLSignature(si, ki);
        signature.sign(dsc);
    } catch (Exception e) {
        Logger.warn("Error while signing an XML document.", e);
    }

    return document;
}
 

private static void signImpl(DOMSignContext dsc, String digestMethod, String signatureMethod, String referenceURI, String keyName, PublicKey publicKey,
                             X509Certificate x509Certificate, String canonicalizationMethodType)
        throws GeneralSecurityException, MarshalException, XMLSignatureException {
    dsc.setDefaultNamespacePrefix("dsig");

    DigestMethod digestMethodObj = fac.newDigestMethod(digestMethod, null);
    Transform transform1 = fac.newTransform(Transform.ENVELOPED, (TransformParameterSpec) null);
    Transform transform2 = fac.newTransform("http://www.w3.org/2001/10/xml-exc-c14n#", (TransformParameterSpec) null);

    List<Transform> transformList = new ArrayList<>();
    transformList.add(transform1);
    transformList.add(transform2);

    Reference ref = fac.newReference(referenceURI, digestMethodObj, transformList, null, null);

    CanonicalizationMethod canonicalizationMethod = fac.newCanonicalizationMethod(canonicalizationMethodType,
            (C14NMethodParameterSpec) null);

    List<Reference> referenceList = Collections.singletonList(ref);
    SignatureMethod signatureMethodObj = fac.newSignatureMethod(signatureMethod, null);
    SignedInfo si = fac.newSignedInfo(canonicalizationMethod, signatureMethodObj, referenceList);

    KeyInfo ki;
    if (includeKeyInfoInSignature) {
        ki = createKeyInfo(keyName, publicKey, x509Certificate);
    } else {
        ki = createKeyInfo(keyName, null, null);
    }
    XMLSignature signature = fac.newXMLSignature(si, ki);

    signature.sign(dsc);
}
 

/**
 * Signs the SAML assertion using the specified public and private keys.
 * 
 * @param document
 *            SAML assertion be signed.
 * @param privateKey
 *            Private key used to sign SAML assertion.
 * @param publicKey
 *            Public key used to sign SAML asserion.
 * @return w3c element representation of specified document.
 * @throws NoSuchAlgorithmException
 * @throws InvalidAlgorithmParameterException
 * @throws KeyException
 * @throws MarshalException
 * @throws XMLSignatureException
 */
private Element signSamlAssertion(Document document, PrivateKey privateKey, X509Certificate certificate)
        throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, KeyException, MarshalException,
        XMLSignatureException {
    XMLSignatureFactory signatureFactory = XMLSignatureFactory.getInstance("DOM");
    List<Transform> envelopedTransform = Collections.singletonList(signatureFactory.newTransform(
            Transform.ENVELOPED, (TransformParameterSpec) null));
    Reference ref = signatureFactory.newReference("", signatureFactory.newDigestMethod(DigestMethod.SHA1, null),
            envelopedTransform, null, null);
    
    SignatureMethod signatureMethod = null;
    if (certificate.getPublicKey() instanceof DSAPublicKey) {
        signatureMethod = signatureFactory.newSignatureMethod(SignatureMethod.DSA_SHA1, null);
    } else if (certificate.getPublicKey() instanceof RSAPublicKey) {
        signatureMethod = signatureFactory.newSignatureMethod(SignatureMethod.RSA_SHA1, null);
    }
    
    CanonicalizationMethod canonicalizationMethod = signatureFactory.newCanonicalizationMethod(
            CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS, (C14NMethodParameterSpec) null);
    
    SignedInfo signedInfo = signatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod,
            Collections.singletonList(ref));
    
    KeyInfoFactory keyInfoFactory = signatureFactory.getKeyInfoFactory();
    X509Data data = keyInfoFactory.newX509Data(Collections.singletonList(certificate));
    KeyInfo keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(data));
    
    Element w3cElement = document.getDocumentElement();
    Node xmlSigInsertionPoint = getXmlSignatureInsertionLocation(w3cElement);
    DOMSignContext dsc = new DOMSignContext(privateKey, w3cElement, xmlSigInsertionPoint);
    
    XMLSignature signature = signatureFactory.newXMLSignature(signedInfo, keyInfo);
    signature.sign(dsc);
    return w3cElement;
}
 

public void init(TransformParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null) {
        if (!(params instanceof ExcC14NParameterSpec)) {
            throw new InvalidAlgorithmParameterException
                ("params must be of type ExcC14NParameterSpec");
        }
        this.params = (C14NMethodParameterSpec)params;
    }
}
 

protected void createSignature(Document document) throws Exception {
  String signMethod = (String)signatureMethod.getSelectedItem();
  PrivateKeyEntry keyEntry = this.selectedEntry;

  if( this.multiSignature )
    this.validateIdAttributes(document);
  ArrayList<Reference> references = this.getReferences();
  SignedInfo signatureInfo = signatureFac.newSignedInfo(signatureFac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null), signatureFac.newSignatureMethod(signatureMethods.get(signMethod), null), references);
  KeyInfo keyInfo = this.getKeyInfo();
  XMLSignature signature = signatureFac.newXMLSignature(signatureInfo, keyInfo);

  DOMSignContext dsc = new DOMSignContext (keyEntry.getPrivateKey(), document.getDocumentElement()); 
  signature.sign(dsc);
}
 

public static void main(String[] args) throws Exception {
    // 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(); 
    PublicKey pub = getPublicKey("C:\\work\\fhirserver\\tests\\signatures\\public_key.der");
    PrivateKey priv = getPrivateKey("C:\\work\\fhirserver\\tests\\signatures\\private_key.der");
    
    // sign the document
    DOMSignContext dsc = new DOMSignContext(priv, 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(pub);
    KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv));
    XMLSignature signature = fac.newXMLSignature(si, ki); 
    signature.sign(dsc);
    
    OutputStream os = new FileOutputStream("c:\\temp\\java-digsig.xml");
    new XmlGenerator().generate(doc.getDocumentElement(), os);
  }