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TLS Certificate Lifetimes Will Officially Reduce to 47 Days (in 2029) (www.digicert.com)

submitted 2 months ago by [email protected] to c/[email protected]

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From today until March 15, 2026, the maximum lifetime for a TLS certificate is 398 days.

As of March 15, 2026, the maximum lifetime for a TLS certificate will be 200 days.

As of March 15, 2027, the maximum lifetime for a TLS certificate will be 100 days.

As of March 15, 2029, the maximum lifetime for a TLS certificate will be 47 days.

What's everyone's opinion on this? I think from a security standpoint their reasoning is valid and in many cases it's very easy to automate the renewal with ACME or something else. But there's likely gonna be legacy stuff still around in 2029 that won't be easy to automate.

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[–] [email protected] 4 points 2 months ago* (last edited 2 months ago) (3 children)

If I understand this correctly, it only affects certificates issued by public CAs (certificates for public websites, for example). So for certs issued by a company CA (e.g. for internal infrastructure), it should not apply. Can anyone confirm?

[–] [email protected] 5 points 2 months ago

True. Technically the bounds for the validity period are from Jan 1, 1950 to Dec 31, 9999.

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