LE="symbol">encrypt-in-place</A> or <A HREF="#decrypt-in-place" STYLE="symbol">decrypt-in-place</A>.  This subtlely is also
present in <A HREF="#encrypt" STYLE="symbol">encrypt</A> or <A HREF="#decrypt" STYLE="symbol">decrypt</A>.</TD></TR></TABLE><H3>Inquiry functions</H3><DIV CLASS="lisp-symbol"><A NAME="list-all-ciphers"></A><TT><STRONG>list-all-ciphers</STRONG>  =&gt; <EM>list</EM></TT><BR /></DIV><P>Returns a list of cipher-names that may be validly passed to <A HREF="#make-cipher" STYLE="symbol">make-