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Decreasing Certificate Lifetimes to 45 Days (letsencrypt.org)

submitted 1 week ago by artiman@piefed.social to c/selfhosted@lemmy.world

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Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028.
This change is being made along with the rest of the industry, as required by the CA/Browser Forum Baseline Requirements, which set the technical requirements that we must follow. All publicly-trusted Certificate Authorities like Let’s Encrypt will be making similar changes. Reducing how long certificates are valid for helps improve the security of the internet, by limiting the scope of compromise, and making certificate revocation technologies more efficient.

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[–] Arghblarg@lemmy.ca 112 points 1 week ago (54 children)

So what's the floor here realistically, are they going to lower it to 30 days, then 14, then 2, then 1? Will we need to log in every morning and expect to refresh every damn site cert we connect to soon?

It is ignoring the elephant in the room -- the central root CA system. What if that is ever compromised?

Certificate pinning was a good idea IMO, giving end-users control over trust without these top-down mandated cert update schedules. Don't get me wrong, LetsEncrypt has done and is doing a great service within the current infrastructure we have, but ...

I kind of wish we could just partition the entire internet into the current "commercial public internet" and a new (old, redux) "hobbyist private internet" where we didn't have to assume every single god-damned connection was a hostile entity. I miss the comraderie, the shared vibe, the trust. Yeah I'm old.

[–] dan@upvote.au 11 points 1 week ago* (last edited 1 week ago)

The current plan is for the floor to be 47 days. https://www.digicert.com/blog/tls-certificate-lifetimes-will-officially-reduce-to-47-days, and this is not until 2029 in order to give people sufficient time to adjust. Of course, individual certificate authorities can choose to have lower validity periods than 47 days if they want to.

Essentially, the goal is for everyone to automatically renew the certificates once per month, but include some buffer time in case of issues.

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