digest</EM> starting at <EM>digest-start</EM>.  <EM>digest</EM> must be
a <TT>(SIMPLE-ARRAY (UNSIGNED-BYTE 8) (*))</TT>.  An <A HREF="#insufficient-buffer-space" STYLE="symbol">insufficient-buffer-space</A> error will be signaled if there is
insufficient space in <EM>digest</EM>.</P><H3>High-level convenience functions</H3><P>Several high-level convenience functions that encapsulate common
sequences of <A HREF="#make-digest" STYLE="symbol">make-digest</A>, <A HREF="#update-digest" STYLE="symbol">update-dige