It’s ten o’clock, do you know where your private keys are?
Short-lived certificates are great — a short lifetime removes the need for complicated revocation policies and reduces an attacker’s window of opportunity. Yet using short-lived certificates in the software supply chain brings a lifetime problem: how can users trust artifacts after the certificate’s expiration? Repeatedly signing artifacts and requesting certificates is tedious. Really, distributors only need to prove that artifacts were signed when the certificate was valid… with timestamps! Enter SigStore’s new, free, open-source RFC 3161 timestamping service on the transparency log Rekor!