SmbComSessionSetupAndXResponse response = null;
        SSPContext ctx = null;
        byte[] token = {};
        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 {