
<h3><a class="toc-backref" href="#id2">Setting your Key</a><a class="headerlink" href="#setting-your-key" title="Permalink to this headline">¶</a></h3>
<p>A <em>key</em> is a piece of information that controls the cryptographic
process and permits an encrypted string to be decoded. In fact, the key
you chose will provide the <strong>only</strong> means to decode data that was
encrypted with that key, so not only must you choose the key carefully,
you must never change it if you intend use it for persisten