SmbComSessionSetupAndXResponse response = null;
        SSPContext ctx = null;
        byte[] token = new byte[0];
        int state = 10;
        final SmbComNegotiateResponse negoResp = (SmbComNegotiateResponse) trans.getNegotiateResponse();
        boolean anonymous = this.credentials.isAnonymous();
        do {
            switch ( state ) {
            case 10: /* NTLM */

    @Override
    public byte[] getServerEncryptionKey () {
        if ( this.negotiated == null ) {
            return null;
        }

        if ( this.negotiated instanceof SmbComNegotiateResponse ) {
            return ( (SmbComNegotiateResponse) this.negotiated ).getServerData().encryptionKey;
        }
        return null;
    }


    @Override
    public boolean isSigningOptional () throws SmbException {