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Re: [Ntp] [TICTOC] WGLC for draft-ietf-ntp-mac

Tal Mizrahi <tal.mizrahi.phd@gmail.com> Sun, 13 August 2017 07:34 UTC

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From: Tal Mizrahi <tal.mizrahi.phd@gmail.com>
Date: Sun, 13 Aug 2017 10:34:31 +0300
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To: Karen O'Donoghue <odonoghue@isoc.org>
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Subject: Re: [Ntp] [TICTOC] WGLC for draft-ietf-ntp-mac
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Hi,

I believe this draft is clear and well-written. A couple of major comments
should probably be addressed before proceeding.

Major comments:
- This may have been discussed before, but still I am not sure what the
answer is: it seems to make sense to define this new MAC as a dedicated
extension field. Any reason not to do that? Since this draft deprecates the
previous MD5-based MAC, there are no backward compatibility considerations.
- To allow algorithm agility, I would suggest to add a field that specifies
the algorithm + a corresponding IANA registry.

Less major comments:
- Missing security considerations section.
- Missing IANA considerations section.
- "any extension fields that are present" => "every extension fields that
is present".

Thanks,
Tal.



On Wed, Aug 9, 2017 at 7:53 AM, Karen O'Donoghue <odonoghue@isoc.org> wrote:

> Folks,
>
> This begins a three week working group last call (WGLC) for "Message
> Authentication Code for the Network Time Protocol"
> https://datatracker.ietf.org/doc/draft-ietf-ntp-mac/
>
> Please review and provide comments to the mailing list by no later than 31
> August 2017. Earlier comments and discussion would be appreciated. Please
> note that the chairs will be using this WGLC to determine consensus to move
> this document forward to the IESG.
>
> Also, as a reminder, we have migrated the working group mailing list to
> IETF infrastructure. Please respond to ntp@ietf.org.
>
> Regards,
> Karen and Dieter
>
> _______________________________________________
> TICTOC mailing list
> TICTOC@ietf.org
> https://www.ietf.org/mailman/listinfo/tictoc
>
>

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