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Re: [dnsext] Validator assumptions: what algorithms need to properly sign a zone?

Samuel Weiler <weiler@watson.org> Fri, 23 March 2012 18:17 UTC

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Date: Fri, 23 Mar 2012 14:17:39 -0400
From: Samuel Weiler <weiler@watson.org>
To: Olafur Gudmundsson <ogud@ogud.com>
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Subject: Re: [dnsext] Validator assumptions: what algorithms need to properly sign a zone?
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On Fri, 23 Mar 2012, Samuel Weiler wrote:

> There is going to be unpredictability in this case.  Some resolvers won't
> support B, whether through implementation choice or configuration choice (B 
> might be weak, hence turned off).  And it's probably sane, though certainly 
> not necessary, for a validator to impose a no-alogrithm-jumping rule.  Hence 
> limiting 5.4 to a SHOULD, not a MUST.

And I should clarify: there is going to be unpredictability because 
the zone is not properly signed.  The chain of trust in alg A is 
broken.

-- Sam

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