requires an initialization
vector.</P><DIV CLASS="lisp-symbol"><A NAME="invalid-initialization-vector"></A><TT><STRONG>invalid-initialization-vector</STRONG></TT><BR /></DIV><P>This error is signaled when an invalid initialization vector is
supplied to <A HREF="#make-cipher" STYLE="symbol">make-cipher</A> (e.g. when the length of the initialization
vector does not match the block length of the cipher).</P><DIV CLASS="lisp-symbol"><A NAME="invalid-key-length"></A><TT><STRONG>invalid-key-length</STRONG></TT><