Microsoft deems all DigiNotar certificates untrustworthy, releases

Tony Finch dot at
Mon Sep 12 21:51:04 UTC 2011

fredrik danerklint <fredan-nanog at> wrote:
> and how about a end user, who doesn't understand a computer at all, to
> be able verify the signatures, correctly?

The current trust model for DNSSEC relies on the vendor of the validator
to bootstrap trust in the root key. This is partly a matter of pragmatism
since the validator is a black-box agent acting on the user's behalf, like
any other software.

It is also required by the root key management policies, since a root key
rollover takes a small number of weeks, much shorter than the
not-in-service shelf life of validating software and hardware. This means
that a validator cannot simply use the root key as a trust anchor and
expect to work: it needs some extra infrastructure supported by the vendor
to authenticate the root key if there happens to have been a rollover
between finalizing the software and deploying it.

f.anthony.n.finch  <dot at>
Biscay, FitzRoy: Southwesterly 4 or 5, veering northerly or northwesterly 5 or
6, occasionally 7 later in southeast Fitzroy. Rough or very rough. Rain or
showers. Good, occasionally poor.

More information about the NANOG mailing list