Erik van Straten<p><span class="h-card" translate="no"><a href="https://social.wildeboer.net/@jwildeboer" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>jwildeboer</span></a></span> : modern certificates are used for authentication only, not for secure connections.</p><p>OTOH, if you have no certainty that your software is communicating with the server you intended, a secure connection to it is pointless - but the connection remains secure.</p><p>Using TLS v1.3, the connection is even secured before the server is authenticated (if, after encrypting the connection, the authentication of the server fails, then the client should at least warn the user - if not immediately disconnect).</p><p>Yes, I know, these are boring details, but they are misunderstood way too often by people who SHOULD know how this works (I know you do, but please don't simplify things too much).<br> </p><p><a href="https://infosec.exchange/tags/TLS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TLS</span></a> <a href="https://infosec.exchange/tags/https" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>https</span></a> <a href="https://infosec.exchange/tags/X509" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>X509</span></a> <a href="https://infosec.exchange/tags/Certificates" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Certificates</span></a> <a href="https://infosec.exchange/tags/Certs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Certs</span></a> <a href="https://infosec.exchange/tags/Identification" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Identification</span></a> <a href="https://infosec.exchange/tags/Authentication" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Authentication</span></a> <a href="https://infosec.exchange/tags/Impersonation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Impersonation</span></a> <a href="https://infosec.exchange/tags/TLSv1_3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TLSv1_3</span></a> <a href="https://infosec.exchange/tags/ForwardSecrecy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ForwardSecrecy</span></a> <a href="https://infosec.exchange/tags/DH" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DH</span></a> <a href="https://infosec.exchange/tags/DHE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DHE</span></a> <a href="https://infosec.exchange/tags/DiffieHellman" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DiffieHellman</span></a></p>