>password</tt>.
    </p>
    <p>
      If <tt>external-format</tt> is <tt>nil</tt> (the default), a plain
      <tt>(unsigned-byte 8)</tt> SSL stream is returned.  With a
      non-null <tt>external-format</tt>, a flexi-stream capable of
      character I/O will be returned instead, with the specified value
      as its initial external format.
    </p>
    <p>
      <tt>verify</tt> can be specified either as NIL if no check should be performed,
      <tt>:optional</tt> to verify the server's certificate if