NTS: Authenticated Time at Meta

T1Covered by 1 source · first reported by Meta — Newsroom / Engineering at 06 Oct, 16:00 UTC

Meta’s public time service now speaks NTS (Network Time Security, RFC 8915) at nts.meta.com. Packets are authenticated, so a device can verify the time came from us and was not modified on the way. Our NTS servers hold no per-client state. Cookie keys are derived, not stored and not replicated…