WKD & Sequoia
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Wed Jan 13 17:07:44 CET 2021
On Wed, Jan 13, 2021 at 10:22 AM André Colomb <andre at colomb.de> wrote:
> So the core problem, as with Stefan's case, is the lack of control over
> the domain's DNS settings. Which the WKD mechanism relies upon to
> delegate trust to the domain operators.
Hi Andre, I wouldn't formulate it this way. I already mentioned that I am able
to set up for my 300baud.de domain a couple of droplets and use as suggested
a valid wildcard subdomain cert, like I explained with the bund.de example and
I am pretty sure that GnuPG and gpg4win will then fail, same as with GitHub.
Regarding Neal's attack example, I also posted here an idea to make it for
Mallory harder, to exchange (a) key(s) from a host, serving a WKD directory,
which also does not break the specs, by simply adding to the policy file
the fingerpint(s) and putting verifiable .ots file(s), in for example,
the hu folder.
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