="std std-ref">Using custom parameters</span></a> secrion for information
on the optional parameters.</p>
</dd></dl>

<dl class="method">
<dt id="CI_Encryption::create_key">
<code class="descname">create_key</code><span class="sig-paren">(</span><em>$length</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Encryption::create_key" title="Permalink to this definition">¶</a></dt>
<dd><table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-bo