s the given function <i>fn</i> with the implementation method and the given <i>arg</i> as argument.</p>

<p>EVP_MAC_get0_name() return the name of the given MAC. For fetched MACs with multiple names, only one of them is returned; it&#39;s recommended to use EVP_MAC_names_do_all() instead.</p>

<p>EVP_MAC_names_do_all() traverses all names for <i>mac</i>, and calls <i>fn</i> with each name and <i>data</i>.</p>

<p>EVP_MAC_get0_description() returns a description of the <i>mac</i>, meant for display and human