InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
        Cipher cipher;
        byte[] decrypt;
        byte[] code = new byte[4];
        Encdec.enc_uint32le(2, code, 0);
        byte[] codeHmac = getHmac(code, key.getEncoded());

        byte[] dataChecksum = new byte[KerberosConstants.CHECKSUM_SIZE];
        System.arraycopy(data, 0, dataChecksum, 0, KerberosConstants.CHECKSUM_SIZE);

     * the encrypted version used for key exchange.
     *
     * @return A <code>byte[]</code> containing the session key.
     */
    public byte[] getMasterKey() {
        return masterKey;
    }

    /**
     * Returns the session key.
     *
     * @return A <code>byte[]</code> containing the session key.
     */
    public byte[] getSessionKey() {
        return sessionKey;

     *
     * @param file
     *            An <code>SmbFile</code> specifying the file to write to
     * @throws SmbException
     */
    public SmbFileOutputStream ( SmbFile file ) throws SmbException {
        this(file, false);
    }


    /**
     * Creates an {@link java.io.OutputStream} for writing bytes to a file
     * on an SMB server addressed by the <code>SmbFile</code> parameter. See

        }
        return null;
    }

    /**
     * Returns the effective user session key.
     * 
     * @param challenge The server challenge.
     * @return A <code>byte[]</code> containing the effective user session key,
     * used in SMB MAC signing and NTLMSSP signing and sealing.
     */
    public byte[] getUserSessionKey(byte[] challenge) {
        if (hashesExternal) return null;

import jcifs.smb1.ntlmssp.NtlmMessage;
import jcifs.smb1.ntlmssp.Type1Message;
import jcifs.smb1.ntlmssp.Type2Message;
import jcifs.smb1.ntlmssp.Type3Message;
import jcifs.smb1.util.Base64;

/**
 * Wraps an <code>HttpURLConnection</code> to provide NTLM authentication
 * services.
 *
 * Please read <a href="../../../httpclient.html">Using jCIFS NTLM Authentication for HTTP Connections</a>.
 */

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

     * 
     * @param file
     * @param mode
     * @throws SmbException
     */
    public SmbRandomAccessFile ( SmbFile file, String mode ) throws SmbException {
        this(file, mode, SmbConstants.DEFAULT_SHARING, false);
    }


    /**
     * Instantiate a random access file from a {@link SmbFile}
     * 
     * @param file
     * @param mode
     * @throws SmbException
     */

     * the local SMB network. If this <code>SmbResource</code> refers to the root
     * <code>smb://</code> resource <code>true</code> is always returned. If
     * this <code>SmbResource</code> is a traditional file or directory, it will
     * be queried for on the specified server as expected.
     *
     * @return <code>true</code> if the resource exists or is alive or
     *         <code>false</code> otherwise
     * @throws CIFSException

    }


    /**
     * Set the user name which is used to setup <code>GSSContext</code>. If null
     * is set, the default user will be used which is retrieved from the first
     * TGT found in <code>Subject</code> .
     *
     * @param name
     *            the user name used to setup <code>GSSContext</code>
     */
    public void setUser ( String name ) {
        this.user = name;
    }

    }


    /**
     * Returns the default flags for a generic Type-2 message in the
     * current environment.
     * 
     * @param tc
     *            context to use
     * @return An <code>int</code> containing the default flags.
     */
    public static int getDefaultFlags ( CIFSContext tc ) {
        return NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_VERSION