I’m familiar with NTS, which is pointedly not NTP.  That’s like saying “TCP port 80 can be made secure,: just use a VPN!” Perhaps when NTS is widely deployed it will be an option. As the RFC was only approved in 2020, that will probably take a decade. Or more. (I’m talking about you, IPv6 :) Not to mention the complexity or NTS for hardware implementation in network elements, a primary application (https://tinyurl.com/ntsishard).

 -mel

> On Aug 8, 2023, at 8:26 AM, Rubens Kuhl <rubensk@gmail.com> wrote:
>
> On Tue, Aug 8, 2023 at 12:12 PM Mel Beckman <mel@beckman.org> wrote:
>>
>> Until the Internet NTP network can be made secure, no.
>
> Internet NTP can be made secure, it's called NTS.
> https://developers.cloudflare.com/time-services/nts/ describes it with
> links to the RFC, and describes one of the many NTP servers that is
> available with NTS, time.cloudflare.com. I already mentioned 5 others,
> and there are many more than those 6.
>
>
> Rubens