Sophie Schmieg wrote:
>”with no opinion on the recommendation flag, other than a hope that we don't 
>get distracted by it for too long.”
>”Well, technically my opinion is that X25519MLKEM768 should be recommended”


+1

(While I don’t have any personal use of SecP256r1MLKEM768 and 
SecP384r1MLKEM1024, I think they are strictly better than SecP256r1 and 
SecP384r1which are both Recommended=Y and SecP256r1 even being MTI. Let’s 
publish and argue about changes later…)

EKR wrote:
>It's purely about whether we think it's reasonable to implement.

This is the current meaning. RFC8447bis will change the meaning to:


“This only means that the associated mechanism is fit for the purpose for which 
it was defined.”

Cheers,
John

From: Sophie Schmieg <[email protected]>
Date: Tuesday, 14 October 2025 at 22:31
To: Kris Kwiatkowski <[email protected]>
Cc: [email protected] <[email protected]>
Subject: [TLS] Re: Working Group Last Call for Post-quantum Hybrid ECDHE-MLKEM 
Key Agreement for TLSv1.3
I support publishing this draft, with no opinion on the recommendation flag, 
other than a hope that we don't get distracted by it for too long.

Well, technically my opinion is that X25519MLKEM768 should be recommended, but 
I also think that neither this flag nor the MTI flag have any meaning in the 
first place, due to the lack of an RFC police, so I am entirely indifferent on 
the value it is given.

On Tue, Oct 14, 2025 at 12:14 PM Kris Kwiatkowski 
<[email protected]<mailto:[email protected]>> 
wrote:
Dear Dan,

Vulnerability scans show again and again that these

devices are normally out of date (and it's also well understood why)
This point is particulary interesting. Can you provide a reference to those 
vulnerability scans?
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--

Sophie Schmieg | Information Security Engineer | ISE Crypto | 
[email protected]<mailto:[email protected]>

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