><p class="first">CI_Encrypt instance (method chaining)</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Encrypt</p>
</td>
</tr>
</tbody>
</table>
<p>Permits you to set an Mcrypt cipher. By default it uses
<code class="docutils literal"><span class="pre">MCRYPT_RIJNDAEL_256</span></code>. Example:</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><s