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Re: [ietf-dkim] Re: Responsibility concerns with DesignatedSigningDomains

2006-08-28 03:16:23

----- Original Message -----
From: "Wietse Venema" <wietse(_at_)porcupine(_dot_)org>


The problem that you refer to is due to the mistaken belief that
DKIM signatures imply anything about rfc2822.from addresses.

You keep saying that its a mistaken belief.  Yet, DKIM-BASE is filled with
sorts of implications about the x822.From address.  See section 5.4.

We can eliminate the problem by simply taking DKIM signatures for what
they actually are: proof about the identity of the signing party,
not proof about the identity of the author.

Now that is a mistaken belief that the problem will go away. :-)

It is an implied proof about the identity of the author via the validation
of the signature.  What you are basically suggestion is that you shouldn't
TRUST the From field.  That's a difference mindset that will required
special batteries!

However, I think the overall mistake is not seriously taken into account
failure analysis.  I think it is also a mistake to presume all receivers are
going take on unnecessary overhead where there is little payoff.  And I
think it is a HUGE mistake to believe the general public is just going to
accept your (and Dave's) vague explanation of what DKIM is really all about.

--
Hector Santos, Santronics Software, Inc.
http://www.santronics.com







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