Overcoming the Challenge of Shorter Certificate Lifespans

Overcoming the Challenge of Shorter PKI X.509 Certificate Lifespans

In August 2019, Google introduced CA/Browser (CA/B) Forum Ballot SC22 to reduce Transport Layer Security (TLS) certificate validity periods to one year. After much discussion and thousands of comments — mostly in opposition — the ballot failed and certificate maximum lifetimes remained at two years. Or so we thought. Even though shorter certificates enhance ecosystem security – and the lifespans are steadily getting shorter — the overall consensus at the time was that shorter certificates would put too much burden on overworked IT teams.

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