On Sun, Mar 29, 2015 at 05:36:15PM -0400, John R Levine wrote:
> >I am happy to see that the openpgpkey draft reinvigorated the email people
> >into looking at a solution for the generic email address to recipient
> >mapping.
>
> I'll be sending one along shortly.
If we're reconsidering the design, perhaps a smaller thing to
reconsider is the idea (IIRC my fault) to use SHA-224 in an attempt
to handle long (> 63 octet) local-parts, and avoid false matches
due to case folding.
An alternative is to go back to the original base32 encoding, which
is lossless, and thus can allow the remote DNS server (a special-purpose
DNS lookup engine serving a zone with per-user information) to
decode the local-part and perform whatever fuzzy matching may be
appropriate.
The lossless encoding can support longer names by breaking them up
into multiple labels.
This allows static DNS to be published where desired, and custom
code to produce dynamic results when appropriate.
--
Viktor.
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