retrieves general information about a certificate, it will return one or more of the following flags ored together.</p>

<dl>

<dt id="EXFLAG_V1"><b>EXFLAG_V1</b></dt>
<dd>

<p>The certificate is an obsolete version 1 certificate.</p>

</dd>
<dt id="EXFLAG_BCONS"><b>EXFLAG_BCONS</b></dt>
<dd>

<p>The certificate contains a basic constraints extension.</p>

</dd>
<dt id="EXFLAG_CA"><b>EXFLAG_CA</b></dt>
<dd>

<p>The certificate contains basic constraints and asserts the CA flag.</p>

</dd>
<dt id="EXFLAG_PRO