/dd><dt><span class="parameter">primaryKey</span></dt><dd>Type: <span class="nolink">String</span><br />
    The primary key.  It's a best practice that the application rotate keys periodically. Between rotations, you 
    would disable the primary key, making the secondary key the default, giving you time to swap out the primary.
</dd><dt><span class="parameter">secondaryKey</span></dt><dd>Type: <span class="nolink">String</span><br />
    The secondary key.  Intended to be used when the primary key 