I support adoption of draft-gondwana-dkim2-modification-alegbra to enable further discussion within the DKIM working group. We'll need some form of message "algebra" to get the full promise of DKIM2 meaningfully solving the mailing list problem. It's not perfect as I described on the March 16th thread titled "Review of draft-gondwana-dkim2-modification-alegbra-01" where I voiced my concern about the scalability of that design, but we need a starting point to work from. -Wei
On Fri, Apr 4, 2025 at 9:22 AM John Levine <jo...@taugh.com> wrote: > It appears that Jeremy Harris <j...@wizmail.org> said: > >On 2025/04/04 1:57 AM, John R Levine wrote: > >> I hope that before we are done we can get people who maintain mailing > lists involved so we can see how well the algebra describes what they do to > messages, or > >conversely whether they might tweak their changes to make > them easier to describe. > > > >I agree, and further: At least low-end MLMs are currently implemented > >separately from their associated MTA pair. Think "mailman". Does the > >proposed need for recording modifications result in it being the MLM > >having to be the EDKIM signer? Or does some form of side-channel feed > >from the MLM, of the modification description, to a signer located in > >the MSA, suffice? > > Interesting question. The MSA is usually also going to be signing mail > that > has not come through the list manager, so it would be nice to keep the > signing > and the keys in one place. > > Look at draft-gondwana-dkim2-modification-alegbra and you'll see that it > puts > the changes in separate DKIM2-Delta-Body and DKIM2-Delta-Header header > fields. > The list manager could add those and the MSA sees them and includes them > in the > new signature. > > R's, > John > > _______________________________________________ > Ietf-dkim mailing list -- ietf-dkim@ietf.org > To unsubscribe send an email to ietf-dkim-le...@ietf.org >
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