oes not produce
      such messages.
     </p></li></ul></div><p>
    Note that different keys may have the same ID.   This is rare but a normal
    event. The client application should then try to decrypt with each one,
    to see which fits — like handling <code class="literal">ANYKEY</code>.
   </p></div><div class="sect3" id="PGCRYPTO-PGP-ENC-FUNCS-ARMOR"><div class="titlepage"><div><div><h4 class="title">F.28.3.6. <code class="function">armor()</code>, <code class="function">dearmor()</code> <a href