> A compromised server could easily still request the client certificate, no? > But as noted, even a compromised server can ask for client credentials and then Yes, that's true. If the intruder knew to do so. Also, a thief can break your window and get into your car, so you might as well leave them rolled down all the time. The question wasn't "Should I care that..." or "Is it a good idea to...". It was "Can OpenSSL 3 do this".