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Re: [ntpwg] Fwd: Early Allocations for NTS drafts from the IETF NTP Working Group

Harlan Stenn <stenn@ntp.org> Tue, 15 March 2016 21:21 UTC

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From: Harlan Stenn <stenn@ntp.org>
To: Hal Murray <hmurray@megapathdsl.net>
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Comments: In-reply-to Hal Murray <hmurray@megapathdsl.net> message dated "Tue, 15 Mar 2016 11:04:03 -0700."
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Date: Tue, 15 Mar 2016 21:18:37 +0000
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Subject: Re: [ntpwg] Fwd: Early Allocations for NTS drafts from the IETF NTP Working Group
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Hal Murray writes:
> 
> stenn@ntp.org said:
> >> No, you can't. There is no secret that could be used to create a
> >> proper MAC yet.
> > Yes we can,  with a symmetric key. 
> 
> If you have a symmetric key you don't need NTS.

That's your policy choice.  I don't believe you should be able to
enforce that choice on others.

> It may be that the right approach is to dump NTS and use shared keys.
> If so, we should be working on ways to distribute shared keys out of
> band from NTP proper.

I think that's a poor mechanism, but it is an alternative mechanism.

> Is there any reason to tightly couple distributing keys with NTP?

Sure.    Good reasons?  Maybe.  Feeping creatureism?  Maybe.  Either
way, it boils down to the question of "is this a mechanism we want to
specifically address/include?"

One person's signal is another person's noise.

H
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