Re: [Danish] [Iot-directorate] SCVP

Wes Hardaker <wjhns1@hardakers.net> Tue, 16 February 2021 20:14 UTC

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From: Wes Hardaker <wjhns1@hardakers.net>
To: Viktor Dukhovni <ietf-dane@dukhovni.org>
Cc: danish@ietf.org
References: <49163B0D-3952-4DE8-8915-6DC6D50F851C@vigilsec.com> <1182.1613430019@localhost> <yblim6si03u.fsf@w7.hardakers.net> <4DBD656B-ED85-47DB-9493-6B3CC8AC50A1@dukhovni.org>
Date: Tue, 16 Feb 2021 12:14:14 -0800
In-Reply-To: <4DBD656B-ED85-47DB-9493-6B3CC8AC50A1@dukhovni.org> (Viktor Dukhovni's message of "Tue, 16 Feb 2021 18:06:26 -0200")
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Subject: Re: [Danish] [Iot-directorate] SCVP
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So enumerating the potential things to attempt to measure:

1) Full PKIX -- ignore DNSSEC and DANE
2) DANE with full DNSSEC validation -- DANE-EE and validation from the root (worst case)
3) DANE with DOH/DoT/etc validation done by the upstream resolver that
   you trust to do DNSSEC validation (because you're throwing trust at
   this point).  Also note that in this situation you may or may not be
   using long lived connections with the DoH/DoT provider (which will
   also require PKIX).  (Also note that there is likely varying levels
   of trust for them to properly set the AA bit)

-- 
Wes Hardaker
USC/ISI