*   A few IETF ago we wanted to add codepoints to hybrid-design for 
X25519Kyber768Draft00, but the working group felt that a separate document was 
more appropriate.
This makes sense, however shouldn’t draft-kwiatkowski-tls-ecdhe-mlkem-01 be on 
the Standards track?
Also, what is the thinking behind “Recommended: N” for the code points?

From: Bas Westerbaan <bas=40cloudflare....@dmarc.ietf.org>
Sent: Monday, September 9, 2024 2:05 PM
To: Andrei Popov <andrei.po...@microsoft.com>
Cc: Alicja Kario <hka...@redhat.com>; Kris Kwiatkowski <k...@amongbytes.com>; 
tls@ietf.org
Subject: Re: [TLS] Re: [EXTERNAL] draft-kwiatkowski-tls-ecdhe-mlkem and P-384



On Mon, Sep 9, 2024 at 10:56 PM Andrei Popov 
<Andrei.Popov=40microsoft....@dmarc.ietf.org<mailto:40microsoft....@dmarc.ietf.org>>
 wrote:
Yes, we need SecP384 hybrids.

More generally, I see two separate hybrid key exchange drafts under discussion 
in the TLS WG:
- draft-ietf-tls-hybrid-design-10 refers to pre-standard Kyber;
- draft-kwiatkowski-tls-ecdhe-mlkem-01 defines hybrids with ML-KEM 768.

The latter is merely an instantiation of the former. A few IETF ago we wanted 
to add codepoints to hybrid-design for X25519Kyber768Draft00, but the working 
group felt that a separate document was more appropriate. hybrid-design only 
mentions pre-standards Kyber, because it wasn't updated to reflect the release 
of ML-KEM. It doesn't define codepoints.



Both drafts are on the Informational track. Do we really need two separate 
documents? Also, shouldn't this work be on the Standards track?

Cheers,

Andrei

-----Original Message-----
From: Alicja Kario <hka...@redhat.com<mailto:hka...@redhat.com>>
Sent: Friday, September 6, 2024 4:40 AM
To: Kris Kwiatkowski <k...@amongbytes.com<mailto:k...@amongbytes.com>>; 
tls@ietf.org<mailto:tls@ietf.org>
Subject: [EXTERNAL] [TLS] draft-kwiatkowski-tls-ecdhe-mlkem and P-384

Hello,

What's the situation with other groups for TLS 1.3?
Specifically, are there any plans to specify SecP384r1MLKEM1024?

As mentioned in multiple emails already, high security system already have a 
strict requirement to use P-384 curve exclusively.
Similarly, for post-quantum resistance they will be required to use ML-KEM-1024.

Will you add it to the draft, or should we start work on a separate one that 
defines those hybrid algorithms?
--
Regards,
Alicja (nee Hubert) Kario
Principal Quality Engineer, RHEL Crypto team
Web: http://www.cz.redhat.com/
Red Hat Czech s.r.o., Purkyňova 115, 612 00, Brno, Czech Republic

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