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Re: [lamps] [EXTERNAL] Call for adoption of draft-perret-prat-lamps-cms-pq-kem-01

Mike Ounsworth <Mike.Ounsworth@entrust.com> Mon, 26 September 2022 21:48 UTC

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From: Mike Ounsworth <Mike.Ounsworth@entrust.com>
To: Russ Housley <housley@vigilsec.com>, LAMPS <spasm@ietf.org>
Thread-Topic: [EXTERNAL] [lamps] Call for adoption of draft-perret-prat-lamps-cms-pq-kem-01
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Date: Mon, 26 Sep 2022 21:47:53 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spasm/CqSpKgaoUsb1m5C3arRpG-sL5EE>
Subject: Re: [lamps] [EXTERNAL] Call for adoption of draft-perret-prat-lamps-cms-pq-kem-01
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I'm a co-author, so obviously biased, but I support adoption.

I think this draft is non-controversial; KEMs are the future, CMS will need to support KEMs, some plumbing is required to do that, this draft provides that plumbing.



There was some good discussion at the interim about whether this needs to be triples {KEM, KDF, WRAP}, or if we could simplify it down to pairs {KEM, WRAP} via careful selection of KEMs whose output is allowed to be used directly as a symmetric key (which all of the NIST PQC KEMs do), and choosing a KEM-WRAP pairs whose key match. That said, those are "details" and IMO can be sorted out post-adoption.

---
Mike Ounsworth

-----Original Message-----
From: Spasm <spasm-bounces@ietf.org> On Behalf Of Russ Housley
Sent: September 26, 2022 1:51 PM
To: LAMPS <spasm@ietf.org>
Subject: [EXTERNAL] [lamps] Call for adoption of draft-perret-prat-lamps-cms-pq-kem-01

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______________________________________________________________________
There has been some discussion of https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-perret-prat-lamps-cms-pq-kem/__;!!FJ-Y8qCqXTj2!Zd6D6TwdZ8Q8YzJ4-lVWMy3TN_PtWoDylfM8j6n_kEJYdn4KDCkpnVIGDgSLNRUt16pVWWQ__axXOiN-TWOsv6of7rsW$  .  During the discussion at the virtual interim earlier this month, we agree to have a call for adoption of this document.

Should the LAMPS WG adopt “Use of Post-Quantum KEM in the Cryptographic Message Syntax (CMS)l” in draft-perret-prat-lamps-cms-pq-kem-01?

Please reply to this message by Monday, 10 October 2022 to voice your support or opposition to adoption.

On behalf of the LAMPS WG Chairs,
Russ

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