rtext-end</EM> <EM>plaintext-start</EM> <EM>ciphertext-start</EM> <EM>plaintext-start</EM> =&gt; <EM>n-bytes-consumed</EM>, <EM>n-bytes-produced</EM></TT><BR /></DIV><P>Decrypts data according to <EM>cipher</EM> from <EM>ciphertext</EM>
starting at <EM>ciphertext-start</EM> and continuing until <EM>ciphertext-end</EM>.  The decrypted data is placed in <EM>plaintext</EM>
starting at <EM>plaintext-start</EM>.</P><DIV CLASS="lisp-symbol"><A NAME="encrypt-in-place"></A><TT><STRONG>encrypt-in-place</STRONG> <EM>