} else if (session.transport.server.encryptedPasswords) {
                    lmHash = auth.getAnsiHash( session.transport.server.encryptionKey );
                    ntHash = auth.getUnicodeHash( session.transport.server.encryptionKey );
                    // prohibit HTTP auth attempts for the null session
                    if (lmHash.length == 0 && ntHash.length == 0) {
                        throw new RuntimeException("Null setup prohibited.");

    public static NtlmPasswordAuthentication
                requestNtlmPasswordAuthentication( String url, SmbAuthException sae ) {
        if( auth == null ) {
            return null;
        }
        synchronized( auth ) {
            auth.url = url;
            auth.sae = sae;
            return auth.getNtlmPasswordAuthentication();
        }
    }
/**

        if( session.transport.server.security == SECURITY_SHARE &&
                        ( session.auth.hashesExternal ||
                        session.auth.password.length() > 0 )) {

            if( session.transport.server.encryptedPasswords ) {
                // encrypted
                password = session.auth.getAnsiHash( session.transport.server.encryptionKey );
                passwordLength = password.length;

                    }
                    PasswordAuthentication auth =
                            Authenticator.requestPasswordAuthentication(null,
                                    port, protocol, "", authMethod);
                    if (auth == null) return null;
                    user = auth.getUserName();
                    password = new String(auth.getPassword());
                } catch (Exception ex) { }
            }

import java.math.BigInteger;
import java.security.GeneralSecurityException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

import javax.security.auth.kerberos.KerberosKey;
import javax.security.auth.login.LoginException;

import org.bouncycastle.asn1.*;

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;


@SuppressWarnings ( "javadoc" )

import java.util.Arrays;
import java.util.Locale;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;
import javax.security.auth.kerberos.KerberosPrincipal;
import javax.security.auth.kerberos.KeyTab;

import jcifs.pac.Pac;
import jcifs.pac.PacLogonInfo;
import jcifs.pac.kerberos.KerberosEncData;
import jcifs.pac.kerberos.KerberosPacAuthData;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;

import javax.security.auth.kerberos.KerberosKey;

import org.bouncycastle.asn1.*;

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;


@SuppressWarnings ( "javadoc" )

import java.util.Arrays;
import java.util.Map;

import javax.crypto.Cipher;
import javax.crypto.Mac;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;


@SuppressWarnings ( "javadoc" )
public class PacMac {

    /**
     * 
     */
    private static final String HMAC_KEY = "HMAC";

import javax.crypto.Mac;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;

import org.bouncycastle.asn1.*;

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;
import jcifs.util.Encdec;


@SuppressWarnings ( "javadoc" )

        if (DISABLED || auth.domain == "?")
            return null;

        if (_domains != null && System.currentTimeMillis() > _domains.expiration) {
            _domains = null;
        }
        if (_domains != null)
            return _domains.map;
        try {
            UniAddress addr = UniAddress.getByName(auth.domain, true);