Understanding that Let’s encrypt only provides 90 days lifetime certificate, however, our government will not treat any cert within 3 months expired date as valid cert.
So, is there any ways for us to issue longer issue? or any other suggestions for it?
AlwaysOnSSL (by CertCenter/Symantec/Digicert) is a free/automated CA with 6 month duration certificates. However I believe they are commercial in nature.
I don’t think there’s any exception with Let’s Encrypt when it comes to validity periods.
It looks like CertCenter just randomly pulled AlwaysOnSSL off the internet with no warning a few weeks ago.
They soon after announced some kind of partnership with Comodo, so I half-suspect that they may have done it because of commercial arrangements with Comodo. This is completely uninformed speculation, though.