// Set default for tests
        jcifs.smb1.Config.setProperty("jcifs.smb1.smb.lmCompatibility", "3");
    }

    @AfterAll
    static void tearDownClass() {
        // Restore original property
        if (originalLmCompatibility != null) {
            jcifs.smb1.Config.setProperty("jcifs.smb1.smb.lmCompatibility", originalLmCompatibility);
        } else {

        if (lmCompatibility == 3 || lmCompatibility == 4 || lmCompatibility == 5) {
            // For LM compatibility 3-5, only 16 bytes are used
            doAnswer(invocation -> {
                byte[] dest = invocation.getArgument(2);
                int offset = invocation.getArgument(3);
                System.arraycopy(new byte[16], 0, dest, offset, 16);
                return null;

        if (compatibility < 3) {
            log.warn("Using insecure NTLMv1 authentication (LM compatibility level {}). "
                    + "Please upgrade to NTLMv2 by setting jcifs.smb.lmCompatibility to 3 or higher.", compatibility);
        }

        switch (compatibility) {
        case 0:
        case 1:
            // NTLMv1 - deprecated and insecure

 */
public class NtlmHttpURLConnection extends HttpURLConnection {

    private static final int MAX_REDIRECTS = Integer.getInteger("http.maxRedirects", 20);

    private static final int LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 0);

    private static final String DEFAULT_DOMAIN;

    private HttpURLConnection connection;

    private final Map requestProperties;

    private Map headerFields;

    /** NetBIOS hostname */
    String NETBIOS_HOSTNAME = Config.getProperty("jcifs.smb1.netbios.hostname", null);
    /** LM compatibility level */
    int LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 3);

    /** No flags set */
    int FLAGS_NONE = 0x00;
    /** Lock and read write and unlock flag */
    int FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK = 0x01;

 * NtlmAuthenticator</a> for related information.
 */

public final class NtlmPasswordAuthentication implements Principal, Serializable {

    private static final int LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 3);

    private static final Random RANDOM = new Random();

    private static LogStream log = LogStream.getInstance();

    // KGS!@#$%
    private static final byte[] S8 =

         * need to do a NETLOGON RPC that JCIFS will likely never implement
         * because it requires a lot of extra crypto not used by CIFS.
         */
        Config.setProperty("jcifs.smb1.smb.lmCompatibility", "0");
        Config.setProperty("jcifs.smb1.smb.client.useExtendedSecurity", "false");

        final Enumeration e = filterConfig.getInitParameterNames();
        while (e.hasMoreElements()) {

         * need to do a NETLOGON RPC that JCIFS will likely never implement
         * because it requires a lot of extra crypto not used by CIFS.
         */
        p.setProperty("jcifs.smb.lmCompatibility", "0");
        p.setProperty("jcifs.smb.client.useExtendedSecurity", "false");

        final Enumeration<String> e = filterConfig.getInitParameterNames();
        while (e.hasMoreElements()) {

     * <td>NTLM only</td>
     * </tr>
     * <tr>
     * <td>3-5</td>
     * <td>NTLMv2 only</td>
     * </tr>
     * </table>
     *
     *
     * Property {@code jcifs.smb.lmCompatibility} (int, default 3)
     *
     * @return lanman compatibility level, defaults to 3 i.e. NTLMv2 only
     */
    int getLanManCompatibility();

    /**
     *

        try {
            defaultWorkstation = NbtAddress.getLocalHost().getHostName();
        } catch (final UnknownHostException ex) {}
        DEFAULT_WORKSTATION = defaultWorkstation;
        LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 3);
    }

    /**
     * Creates a Type-3 message using default values from the current
     * environment.
     */
    public Type3Message() {
        setFlags(getDefaultFlags());