es first, followed by the extension represented
by bit 2.</p>
<div class="section" id="authentication">
<h2>authentication</h2>
<p>The packet will have an authentication part
appended to it. It has the following format:</p>
<table border="1" class="docutils">
<colgroup>
<col width="18%" />
<col width="28%" />
<col width="54%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head">size</th>
<th class="head">name</th>
<th class="head">description</th>
</tr>
</thead>
<tbody valign="top">
<tr><td>int8_t</t