ad-error"></A><TT><STRONG>ironclad-error</STRONG></TT><BR /></DIV><P>All errors signaled by Ironclad are of this type.  This type is a
direct subtype of <TT>SIMPLE-ERROR</TT> without any extra slots or
options.</P><DIV CLASS="lisp-symbol"><A NAME="initialization-vector-not-supplied"></A><TT><STRONG>initialization-vector-not-supplied</STRONG></TT><BR /></DIV><P>This error is signaled by <A HREF="#make-cipher" STYLE="symbol">make-cipher</A> when an initialization
vector is not provided and the requested mode 