that shows the supported key lengths of
different ciphers.</p>
<p>The key should be as random as possible and it <strong>must not</strong> be a regular
text string, nor the output of a hashing function, etc. In order to create
a proper key, you must use the Encryption library’s <code class="docutils literal"><span class="pre">create_key()</span></code> method</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="c1">// $key will be assigned a 16-byte (128-bit) random key</spa