title: configure psk_ke (PSK-only) mode in TLS1.3
body: <p>I am using openssl 1.1.1 and trying to configure psk_ke (PSK-only) mode only in requests generated through s_client. In my requests, in client hello message,  I am not able to suppress psk_dhk_ke mode, which I think is getting added by default.</p>
  <p>I have used  directive -allow_no_dhe_kex in s_client requests. It is only helping to get the psk_ke mode added in the packet.</p>
  <p>Also the options like ec_point format, key share, signature algorithms are added in the client hello message which I think is due to psk_dhk_ke option included in client hello. Please correct my understanding if I am wrong.</p>
  <p>Can psk_dhe_ke be suppressed in client hello along with ec_point format, key share, signature algorithms?</p>
  <p>TCP dump of TLS1.3 client hello message:</p>
  <p><a href="https://i.stack.imgur.com/frNUd.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/frNUd.jpg" alt="" /></a></p>