SecretKeySpec dataKey = new SecretKeySpec(dataHmac, KerberosConstants.RC4_ALGORITHM);

        cipher = Cipher.getInstance(KerberosConstants.RC4_ALGORITHM);
        cipher.init(Cipher.DECRYPT_MODE, dataKey);

        int plainDataLength = data.length - KerberosConstants.CHECKSUM_SIZE;
        byte[] plainData = cipher.doFinal(data, KerberosConstants.CHECKSUM_SIZE, plainDataLength);

            throws CIFSException {
        this.file = file;
        this.handle = handle;
        this.openFlags = openFlags;
        this.access = access;
        this.sharing = sharing;
        this.append = false;
        this.smb2 = th.isSMB2();
        init(th);
    }


    /**
     * @param th

     * @param key
     * @throws GeneralSecurityException
     */
    private static void verifyAESMAC ( int usage, String expect, String data, String key ) throws GeneralSecurityException {
        verifyAESHMAC(usage, expect, key, Hex.decode(data));
    }


    private static void verifyArcfourHMAC ( int usage, String expect, String data, String key ) throws GeneralSecurityException {

     */

    @Override
    public int read ( byte[] b ) throws IOException {
        return read(b, 0, b.length);
    }


    /**
     * Reads up to len bytes of data from this input stream into an array of bytes.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public int read ( byte[] b, int off, int len ) throws IOException {

    private CIFSContext transportContext;
    private Address[] dcList = null;
    private long dcListExpiration;

    private int netbiosLookupRespLimit = 3;
    private long netbiosCacheTimeout = 60 * 60 * 10;
    private static int dcListCounter;


    @Override
    public void init ( FilterConfig filterConfig ) throws ServletException {
        String name;

        Properties p = new Properties();
        /*

        int lmResponseOffset = readULong(material, 16);
        byte[] ntResponse = readSecurityBuffer(material, 20);
        int ntResponseOffset = readULong(material, 24);
        byte[] domain = readSecurityBuffer(material, 28);
        int domainOffset = readULong(material, 32);
        byte[] user = readSecurityBuffer(material, 36);
        int userOffset = readULong(material, 40);

    private boolean loadBalance;
    private boolean enableBasic;
    private boolean insecureBasic;
    private String realm;

    public void init( FilterConfig filterConfig ) throws ServletException {
        String name;
        int level;

        /* Set jcifs.smb1 properties we know we want; soTimeout and cachePolicy to 30min.
         */

    private int dialectIndex;

    /* Negotiated values */
    private ServerData server;
    private int negotiatedFlags2;
    private int maxMpxCount;
    private int snd_buf_size;
    private int recv_buf_size;
    private int tx_buf_size;

    private int capabilities;
    private int sessionKey = 0x00000000;
    private boolean useUnicode;


    /**

        this.identifier_authority = new byte[6];
        for ( int i = 5; id > 0; i-- ) {
            this.identifier_authority[ i ] = (byte) ( id % 256 );
            id >>= 8;
        }

        this.sub_authority_count = (byte) st.countTokens();
        if ( this.sub_authority_count > 0 ) {
            this.sub_authority = new int[this.sub_authority_count];
            for ( int i = 0; i < this.sub_authority_count; i++ )

        return this.binding.toString();
    }


    protected abstract void doSendFragment ( byte[] buf, int off, int length ) throws IOException;


    protected abstract int doReceiveFragment ( byte[] buf ) throws IOException;


    protected abstract int doSendReceiveFragment ( byte[] out, int off, int length, byte[] inB ) throws IOException;


    @Override
    public void close () throws IOException {