A Secure Selection and Filtering Mechanism for the Network Time Protocol with Khronos
RFC 9523

Received changes through RFC Editor sync (created document RFC 9523, created became rfc relationship between draft-ietf-ntp-chronos and RFC 9523, set abstract to 'The Network Time Protocol version 4 (NTPv4), as defined in RFC 5905, is the mechanism used by NTP clients to synchronize with NTP servers across the Internet.  This document describes a companion application to the NTPv4 client, named "Khronos", that is used as a "watchdog" alongside NTPv4 and that provides improved security against time-shifting attacks.  Khronos involves changes to the NTP client's system process only.  Since it does not affect the wire protocol, the Khronos mechanism is applicable to current and future time protocols.', set pages to 13, set standardization level to Informational, added RFC published event at 2024-02-21)