The point is, if the certificate gets stolen, there’s no GOOD mechanism for marking it bad.
If your password gets stolen, only two entities need to be told it’s invalid. You and the website the password is for.
If an SSL certificate is stolen, everyone who would potentially use the website need to know, and they need to know before they try to contact the website. SSL certificate revocation is a very difficult communication problem, and it’s mostly ignored by browsers because of the major performance issues it brings having to double check SSL certs with a third party.
cron@feddit.org 4 hours ago
Short lifespans are also great when domains change their owner. With a 3 year lifespan, the old owner could possibly still read traffic for a few more years.
When the lifespan ist just 30-90 days, that risk is significatly reduced.