class="o">-&gt;</span><span class="na">encryption</span><span class="o">-&gt;</span><span class="na">encrypt</span><span class="p">(</span><span class="s1">&#39;My secret message&#39;</span><span class="p">);</span>
</pre></div>
</div>
<p>Please refer to the <a class="reference internal" href="#custom-parameters"><span class="std std-ref">Using custom parameters</span></a> section for information
on the optional parameters.</p>
</dd></dl>

<dl class="method">
<dt id="CI_Encryption::decrypt">
<code class="de