throw new CIFSException("invalid offset/length");
            }
            return Arrays.copyOfRange(token, off, off + len);
        }

        @Override
        public String getNetbiosName() {
            return this.nbName;
        }

        @Override
        public void dispose() throws CIFSException {
            if (this.disposed) {
                throw new CIFSException("already disposed");

    byte[] initSecContext(byte[] token, int off, int len) throws CIFSException;

    /**
     * Gets the NetBIOS name of the remote endpoint.
     * @return the name of the remote endpoint
     */
    String getNetbiosName();

    /**
     * Disposes of the security context and releases any associated resources.
     * @throws CIFSException if an error occurs during disposal
     */
    void dispose() throws CIFSException;

    public boolean isMICAvailable() {
        return this.gssContext.getIntegState();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#getNetbiosName()
     */
    @Override
    public String getNetbiosName() {
        return null;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#getSigningKey()
     */
    @Override

     */
    public byte[] getSigningKey() {
        return signingKey;
    }

    /**
     * Gets the NetBIOS name of the remote server.
     * @return the NetBIOS name
     */
    public String getNetbiosName() {
        return netbiosName;
    }

    private String getNtlmsspListItem(final byte[] type2token, final int id0) {
        int ri = 58;

        for (;;) {

        assertFalse(ctx.isMICAvailable());
        assertTrue(ctx.isMICAvailable());
    }

    @Test
    @DisplayName("getNetbiosName returns null")
    void getNetbiosName_null() {
        assertNull(ctx.getNetbiosName());
    }

    @Test
    @DisplayName("getSigningKey throws when ExtendedGSSContext not implemented")
    void getSigningKey_notImplementedByGSSContext() {

        return this.serverChallenge;
    }

    @Override
    public byte[] getSigningKey() {
        return this.masterKey;
    }

    @Override
    public String getNetbiosName() {
        return this.netbiosName;
    }

    /**
     * Sets the target server's Service Principal Name (SPN).
     * @param targetName
     *            the target's SPN
     */

        assertNotNull(context);
        assertFalse(context.isEstablished());
        assertNull(context.getServerChallenge());
        assertNull(context.getSigningKey());
        assertNull(context.getNetbiosName());

        int expectedFlags = NtlmFlags.NTLMSSP_REQUEST_TARGET | NtlmFlags.NTLMSSP_NEGOTIATE_NTLM2 | NtlmFlags.NTLMSSP_NEGOTIATE_128

                }

                token = response.getBlob();
            }

            if (ctx.isEstablished()) {
                log.debug("Context is established");
                setNetbiosName(ctx.getNetbiosName());
                byte[] sk = ctx.getSigningKey();
                if (sk != null) {
                    // session key is truncated to 16 bytes, right padded with 0 if shorter