SHA-256
HMAC.</p>
<div class="admonition important">
<p class="first admonition-title">Important</p>
<p class="last">Note that both ‘key’ and ‘hmac_key’ are used in this
example. When using custom parameters, encryption and HMAC keys
are not derived like the default behavior of the library is.</p>
</div>
<p>Below is a list of the available options.</p>
<p>However, unless you really need to and you know what you are doing,
we advise you to not change the encryption process as this could
impact securi