et:</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;encryption_key&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;YOUR KEY&quot;</span><span class="p">;</span>
</pre></div>
</div>
</div>
<div class="section" id="message-length">
<h3><a class="toc-backref" href="#id3">Message Length</a><a class="headerlink" href="#message-length" title="Permalink to this headline">¶</a></h