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Re: [Ntp] NTP Security (was NTPv5: big picture)

James Browning <jamesb.fe80@gmail.com> Sun, 17 January 2021 01:44 UTC

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From: James Browning <jamesb.fe80@gmail.com>
Date: Sat, 16 Jan 2021 17:44:21 -0800
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Subject: Re: [Ntp] NTP Security (was NTPv5: big picture)
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On Sat, Jan 16, 2021 at 5:13 PM Harlan Stenn <stenn@nwtime.org> wrote:

> On 1/16/2021 3:35 PM, Kurt Roeckx wrote:
> > I think if we want to do it with DNS, it would require DNSSEC, and
> > that the client validates DNSSEC.
>
> How do you reliably use DNSSEC if you don't know what time it is?
>

1) don't
2) if not taking a big step it should already be well under ~17 minutes off.
3) if taking a big step store the result and evaluate later.
4) whatever handwaving will be used for the TLS certificates.
Probably those in reverse order.

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