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

Hal Murray <hmurray@megapathdsl.net> Mon, 14 March 2016 22:07 UTC

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To: Harlan Stenn <stenn@ntp.org>
From: Hal Murray <hmurray@megapathdsl.net>
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Subject: Re: [ntpwg] Fwd: Early Allocations for NTS drafts from the IETF NTP Working Group
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stenn@ntp.org said:
> If that's not OK for some people, that's great.  The instant solution for
> these folks is to use symmetric keys with the traditional MAC to protect
> packet contents before NTS can provide a MAC itself. 

If I have symmetric keys, why would I bother with NTS?

Is there some crypto argument about changing keys after using a key on X 
bytes of data?  If so, what is X and/or how does that translate to something 
like years of NTP traffic?


-- 
These are my opinions.  I hate spam.



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