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Re: [Sidrops] I-D Action: draft-ietf-sidrops-aspa-profile-15.txt

Job Snijders <job@fastly.com> Wed, 14 June 2023 00:28 UTC

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Date: Wed, 14 Jun 2023 00:28:31 +0000
From: Job Snijders <job@fastly.com>
To: Russ Housley <housley@vigilsec.com>
Cc: sidrops@ietf.org
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References: <ZIGogKIH4Srb8Nxt@snel> <20230608181440.33d6926f@glaurung.nlnetlabs.nl> <0C543A94-F70E-4A40-8350-C98FAAB5A9B5@vigilsec.com> <D100381E-6498-4EAD-B056-18F89836C097@ripe.net> <96D52BC8-C3BA-43C8-90E1-DD2621C2292F@vigilsec.com> <20230613094413.364aaa8c@smaug.local.partim.org> <26E1759F-08FA-430D-8F89-BDC6C3DC4B9D@vigilsec.com> <20230613150156.29022a0e@glaurung.nlnetlabs.nl> <ZIitpTWScXigugLD@feather.sobornost.net> <75A56DC7-816E-4D2B-980D-F5039EE3DD24@vigilsec.com>
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Subject: Re: [Sidrops] I-D Action: draft-ietf-sidrops-aspa-profile-15.txt
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On Tue, Jun 13, 2023 at 08:22:55PM -0400, Russ Housley wrote:
> Job:
> 
> > It seems not every deserializer implementation rejects DER during
> > decoding if the DER contains a SET OF (unsorted, duplicate) INTEGERS.
> 
> That seems worse to me.  That means that some decoder implementations
> will silently accept the lack of a proper sort and others will throw
> an error.
> 
> On one hand, I like the "be forgiving on receive" aspect of it, but on
> the other, I think that the inconsistency will be an operational
> headache.  SEQUENCE seems safer.

I concur, in my mind using a SEQUENCE in eContent payloads will result
in fewer inconsistencies between RP implementations.

Kind regards,

Job

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