Examples of org.apache.xml.security.encryption.XMLCipher

Package org.apache.xml.security.encryption

Examples of org.apache.xml.security.encryption.XMLCipher

org.apache.xml.security.encryption.XMLCipher
XMLCipher encrypts and decrypts the contents of Documents, Elements and Element contents. It was designed to resemble javax.crypto.Cipher in order to facilitate understanding of its functioning. @author Axl Mattheus (Sun Microsystems) @author Christian Geuer-Pollmann


    SecretKey secretKey = WSSecurityUtil.prepareSecretKey(
        EncryptionConstants.ALGO_ID_BLOCKCIPHER_AES128, encrKeyProcessor
            .getDecryptedBytes());


    XMLCipher cipher = XMLCipher.getInstance();
    cipher.init(XMLCipher.DECRYPT_MODE, secretKey);


    Document doc = cipher.doFinal(encryptedToken.getOwnerDocument(), encryptedToken);


    return doc.getDocumentElement();
  }

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            SecretKey secretKey = WSSecurityUtil.prepareSecretKey(
                    EncryptionConstants.ALGO_ID_BLOCKCIPHER_AES128, encrKeyProcessor
                            .getDecryptedBytes());


            XMLCipher cipher = XMLCipher.getInstance();
            cipher.init(XMLCipher.DECRYPT_MODE, secretKey);


            Document doc = cipher.doFinal(encryptedToken.getOwnerDocument(), encryptedToken);


            return doc.getDocumentElement();
        } catch (Exception e) {
            log.error("error occured while decryptng the token", e);
            throw e;

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    public void createEncryptedData(String algorithm, Key key, Element element)
            throws XKMSException {
        try {


            Document doc = element.getOwnerDocument();
            XMLCipher xmlCipher = XMLCipher.getInstance(algorithm);
            xmlCipher.init(XMLCipher.ENCRYPT_MODE, key);
            xmlCipher.doFinal(doc, element, true);


        } catch (Exception e) {
            e.printStackTrace();
            throw new XKMSException(e);
        }

View Full Code Here

        }
    }


    public void decryptData(Key key, Document doc) throws XKMSException {
        try {
            XMLCipher xmlCipher = XMLCipher.getInstance();
            xmlCipher.init(XMLCipher.DECRYPT_MODE, key);
            xmlCipher.doFinal(doc, encryptedData, true);


            OMElement rsaKeyPairElem = ((OMElement) encryptedData)
                    .getFirstChildWithName(XKMS2Constants.Q_ELEM_RSA_KEY_PAIR);
            rsaKeyPair = (RSAKeyPair) RSAKeyPairTypeBuilder.INSTANCE
                    .buildElement(rsaKeyPairElem);

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        String algorithm, 
        SecretKey secretKey,
        Key wrappingKey,
        Document document
    ) throws Exception {
        XMLCipher cipher = XMLCipher.getInstance(algorithm);
        cipher.init(XMLCipher.DECRYPT_MODE, secretKey);
        if (wrappingKey != null) {
            cipher.setKEK(wrappingKey);
        }
        
        NodeList nodeList = document.getElementsByTagNameNS(
                XMLSecurityConstants.TAG_xenc_EncryptedData.getNamespaceURI(),
                XMLSecurityConstants.TAG_xenc_EncryptedData.getLocalPart()
            );
        Element ee = (Element)nodeList.item(0);
        return cipher.doFinal(document, ee);
    }

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    protected void doDOMEncryptionOutbound(File file, int tagCount) throws Exception {


        DocumentBuilder builder = XMLUtils.createDocumentBuilder(false);
        Document document = builder.parse(file);


        XMLCipher cipher = XMLCipher.getInstance("http://www.w3.org/2001/04/xmlenc#aes256-cbc");
        cipher.init(XMLCipher.ENCRYPT_MODE, encryptionSymKey);
        document = cipher.doFinal(document, document.getDocumentElement());


        XMLUtils.outputDOM(document, new BufferedOutputStream(new FileOutputStream(new File(getTmpFilePath(), "encryption-dom-" + tagCount + ".xml"))));
    }

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    protected void doDOMDecryptionInbound(File file, int tagCount) throws Exception {


        DocumentBuilder builder = XMLUtils.createDocumentBuilder(false);
        Document document = builder.parse(file);


        XMLCipher cipher = XMLCipher.getInstance("http://www.w3.org/2001/04/xmlenc#aes256-cbc");
        cipher.init(XMLCipher.DECRYPT_MODE, encryptionSymKey);
        cipher.doFinal(document, document.getDocumentElement());
    }

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     * Decrypt using DOM API
     */
    private Document decryptElementDOM(Document doc, Key rsaKey, X509Certificate rsaCert) throws Exception {


        // Create the XMLCipher element
        XMLCipher cipher = XMLCipher.getInstance();


        // Need to pre-load the Encrypted Data so we can get the key info
        Element ee =
                (Element) doc.getElementsByTagNameNS(
                        "http://www.w3.org/2001/04/xmlenc#", "EncryptedData"
                ).item(0);
        cipher.init(XMLCipher.DECRYPT_MODE, null);
        EncryptedData encryptedData = cipher.loadEncryptedData(doc, ee);


        KeyInfo ki = encryptedData.getKeyInfo();
        EncryptedKey encryptedKey = ki.itemEncryptedKey(0);


        XMLCipher cipher2 = XMLCipher.getInstance();
        cipher2.init(XMLCipher.UNWRAP_MODE, rsaKey);
        Key key =
                cipher2.decryptKey(
                        encryptedKey, encryptedData.getEncryptionMethod().getAlgorithm()
                );


        cipher.init(XMLCipher.DECRYPT_MODE, key);
        Document dd = cipher.doFinal(doc, ee);

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        String encryptionAlgorithm,
        List<WSEncryptionPart> references,
        CallbackLookup callbackLookup
    ) throws WSSecurityException {


        XMLCipher xmlCipher = null;
        try {
            xmlCipher = XMLCipher.getInstance(encryptionAlgorithm);
        } catch (XMLEncryptionException ex) {
            throw new WSSecurityException(
                WSSecurityException.ErrorCode.UNSUPPORTED_ALGORITHM, ex

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        String dataRefURI,
        Element encData,
        SecretKey symmetricKey,
        String symEncAlgo
    ) throws WSSecurityException {
        XMLCipher xmlCipher = null;
        try {
            xmlCipher = XMLCipher.getInstance(symEncAlgo);
            xmlCipher.setSecureValidation(true);
            xmlCipher.init(XMLCipher.DECRYPT_MODE, symmetricKey);
        } catch (XMLEncryptionException ex) {
            throw new WSSecurityException(
                WSSecurityException.ErrorCode.UNSUPPORTED_ALGORITHM, ex
            );
        }


        WSDataRef dataRef = new WSDataRef();
        dataRef.setWsuId(dataRefURI);
        dataRef.setAlgorithm(symEncAlgo);
        boolean content = X509Util.isContent(encData);
        dataRef.setContent(content);
        
        Node parent = encData.getParentNode();
        Node previousSibling = encData.getPreviousSibling();
        if (content) {
            encData = (Element) encData.getParentNode();
            parent = encData.getParentNode();
        }
        
        try {
            xmlCipher.doFinal(doc, encData, content);
        } catch (Exception ex) {
            throw new WSSecurityException(WSSecurityException.ErrorCode.FAILED_CHECK, ex);
        }
        
        if (parent.getLocalName().equals(WSConstants.ENCRYPTED_HEADER)

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