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Re: [DNSOP] [Ext] DNSSEC Strict Mode

Ben Schwartz <bemasc@google.com> Wed, 24 February 2021 22:13 UTC

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From: Ben Schwartz <bemasc@google.com>
Date: Wed, 24 Feb 2021 17:13:29 -0500
Message-ID: <CAHbrMsBjOmKXmv7vJoCB+horzmzHDkn3KYPbNxeyB3miWLV2WA@mail.gmail.com>
To: Mark Andrews <marka@isc.org>
Cc: Ulrich Wisser <ulrich@wisser.se>, Paul Hoffman <paul.hoffman@icann.org>, Samuel Weiler <weiler@watson.org>, dnsop <dnsop@ietf.org>
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Subject: Re: [DNSOP] [Ext] DNSSEC Strict Mode
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On Wed, Feb 24, 2021 at 4:44 PM Mark Andrews <marka@isc.org> wrote:

>
>
> > On 25 Feb 2021, at 02:01, Ulrich Wisser <ulrich=
> 40wisser.se@dmarc.ietf.org> wrote:
>
...

> > At the current state of dnssec RFC definitions it is unclear how you
> could change DNS operators securely if these operators do not sign the zone
> with the same algorithm.
>
> You can’t do that as the logic doesn’t allow it.  Perform algorithm roles
> to and from mandatory to implement algorithms before and after the move if
> necessary.
>

What if you set all TTLs to zero on both sides until the transition is
complete?

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