protected String createUserCodeFromUserId(String userCode) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final PrimaryCipher cipher = ComponentUtil.getPrimaryCipher();
        userCode = cipher.encrypt(userCode);
        if (fessConfig.isValidUserCode(userCode)) {
            return userCode;
        }
        return null;
    }

    public void deleteUserCodeFromCookie(final HttpServletRequest request) {

        if (logger.isDebugEnabled()) {
            logger.debug("system.properties: {}", value);
        }
        if (StringUtil.isNotBlank(value)) {
            ParameterUtil.parse(ParameterUtil.encrypt(value)).entrySet().stream().filter(e -> {
                final String key = e.getKey();
                if (StringUtil.isBlank(key)) {
                    return false;
                }

                    anonymous = true;
                }

                if ( ( response.getSessionFlags() & Smb2SessionSetupResponse.SMB2_SESSION_FLAG_ENCRYPT_DATA ) != 0 ) {
                    throw new SmbUnsupportedOperationException("Server requires encryption, not yet supported.");
                }

                if ( preauthIntegrity ) {

                Constants.CIPHER_PREFIX + ComponentUtil.getPrimaryCipher().encrypt(value));
    }

    default String getLdapAdminSecurityCredentials() {
        final String value = getSystemProperty(Constants.LDAP_ADMIN_SECURITY_CREDENTIALS);
        if (StringUtil.isNotBlank(value) && value.startsWith(Constants.CIPHER_PREFIX)) {
            return ComponentUtil.getPrimaryCipher().decrypt(value.substring(Constants.CIPHER_PREFIX.length()));
        }

    /** The key of the configuration. e.g. sha256 */
    String APP_DIGEST_ALGORISM = "app.digest.algorism";

    /** The key of the configuration. e.g. .*password|.*key|.*token|.*secret */
    String APP_ENCRYPT_PROPERTY_PATTERN = "app.encrypt.property.pattern";

    /** The key of the configuration. e.g.  */
    String APP_EXTENSION_NAMES = "app.extension.names";

    /** The key of the configuration. e.g.  */

                    throw new PACDecodingException("Kerberos key not found for eType " + encType.getValue());
                }

                try {
                    byte[] decrypted = KerberosEncData.decrypt(crypt, serverKey, serverKey.getKeyType());
                    this.encData = new KerberosEncData(decrypted, keysByAlgo);
                }
                catch ( GeneralSecurityException e ) {

                if (server != null) {
                    SettingsDecryptionRequest request = new DefaultSettingsDecryptionRequest(server);
                    SettingsDecryptionResult result = settingsDecrypter.decrypt(request);
                    server = result.getServer();

                    if (logger.isDebugEnabled()) {
                        for (SettingsProblem problem : result.getProblems()) {

        cipher.init(Cipher.DECRYPT_MODE, sk, params);

        byte[] result;
        result = cipher.doFinal(data);

        decrypt = new byte[result.length];
        System.arraycopy(result, 0, decrypt, 0, result.length);

        int tempSize = decrypt.length - 24;

        byte[] output = new byte[tempSize];
        System.arraycopy(decrypt, 24, output, 0, tempSize);

                        if (id.equalsIgnoreCase(server.getId())) {
                            SettingsDecryptionResult result =
                                    settingsDecrypter.decrypt(new DefaultSettingsDecryptionRequest(server));
                            server = result.getServer();

                            AuthenticationInfo authInfo = new AuthenticationInfo();

            sessionBuilder.setVersionFilter(versionFilter);
        }

        DefaultSettingsDecryptionRequest decrypt = new DefaultSettingsDecryptionRequest();
        decrypt.setProxies(request.getProxies());
        decrypt.setServers(request.getServers());
        SettingsDecryptionResult decrypted = settingsDecrypter.decrypt(decrypt);

        if (logger.isDebugEnabled()) {
            for (SettingsProblem problem : decrypted.getProblems()) {