Re: [Ietf-dkim] Rechartering

"Murray S. Kucherawy" <superuser@gmail.com> Mon, 28 November 2022 08:17 UTC

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From: "Murray S. Kucherawy" <superuser@gmail.com>
Date: Mon, 28 Nov 2022 00:17:21 -0800
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To: Scott Kitterman <sklist@kitterman.com>
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Subject: Re: [Ietf-dkim] Rechartering
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On Sun, Nov 27, 2022 at 9:34 PM Scott Kitterman <sklist@kitterman.com>
wrote:

> I would add mention of the problem statement draft.  I think it may turn
> out
> to be the most important of the ones we have now.
>

Do you mean: Mention it as a mandatory deliverable?

Should we still produce that document even if we conclude replay can't be
solved?


> I still think "compatible with DKIM's broad deployment" is too narrow.
> Also,
> I think it's one reasonable conclusion the group might reach is that the
> cure
> is worse than the disease and a resolution along the lines of "remove
> signatures during delivery" and "be more careful about what you sign
> because
> signing bad things will hurt your domain's reputation" may be the most
> appropriate approach.
>

Yes, I think it's always implied that a working group can throw in the
towel if consensus is to do that.  I've never seen it spelled out in a
charter that this is an available option, but we can make it explicit if
people feel doing so would help set the scope.


> How about instead of "The DKIM working group will produce one or more
> technical specifications that describe the abuse and propose
> replay-resistant
> mechanisms that are compatible with DKIM's broad deployment" we say "The
> DKIM
> working group will evaluate potential mechanisms to mitigate this attack
> and
> produce one or more technical specifications that describe the abuse and
> propose improvements which, consistent with compatibility with DKIM's
> broad
> deployment and general email protocols, will reduce the impact of replay
> attacks".
>

I think those say approximately the same thing, so I'm fine with either.

-MSK