 0, 16, 24 and 32.
Enable sender encryption if not 0.
Not required on receiver (set to 0),
key size obtained from sender in HaiCrypt handshake.
Default value is 0.
</p>
</dd>
<dt>&lsquo;<samp>rcvlatency</samp>&rsquo;</dt>
<dd><p>The time that should elapse since the moment when the
packet was sent and the moment when it&rsquo;s delivered to
the receiver application in the receiving function.
This time should be a buffer time large enough to cover
the time spent for sending, unexpectedly extended RTT
time, a