3 ms·
Ironically, Chrome treats me to: ERR_SSL_VERSION_OR_CIPHER_MISMATCH So the privacy of egbert.net is especially ensured?
by AStonesThrow 1y ago
Ironically, Chrome treats me to:
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
So the privacy of egbert.net is especially ensured?
- pixl97 1y agoLooks like safari and Firefox are supported https://www.ssllabs.com/ssltest/analyze.html?d=egbert.net https://www.ssllabs.com/ssltest/analyze.html?d=egbert.net
- zinekeller 1y agoApparently Chrome does not support secp521r1 EC/DH key exchange. secp521r1... should probably be avoided unless you're targeting FIPS standards (too much security, also designed by NSA) but "higher bits" apparently are sexier than having a more rigorous algorithm than x25519. ... or probably this is very intentional move to block Chrome?
- AStonesThrow 1y agoI'd be interested to know how you traced this. I dove into the rabbit hole, and used ssllabs.com for a client browser check. I compared the client with the server to note that the server, very strict in its protocols, accepts only TLS v1.3 (check) and only a single CHACHA cipher (check) so I could not see why they were not connecting. Now I do see that Chrome only does ecdh secp384r1 or 256, but that was fine print, and I did not understand its importance. An attempt to fetch the blog URL with http: also failed with a 404. Anyway, I did find the blog article, dated May 2022, on the Wayback Machine, in two old snapshots, and attempting to take a snapshot today failed. The W3C Validator was able to fetch and parse anyway. There was no particular indication of browser compatibility in the blog post. But a very opinionated piece on DNSSEC indeed.
- pixl97 1y agoShould be able to do something like an OpenSsl s_client -connect egbert.net:443 And get more information.