> Am 27.02.2026 um 23:45 schrieb Blumenthal, Uri - 0553 - MITLL 
> <[email protected]>:
> 
> >> - There does not seem to be any evidence that ML-KEM is weak. I think
> >>  that if ML-KEM gets badly broken, it will be for unforeseeable reasons
> >>  (which is a risk for any cryptographic algorithm, including prime-
> >>  field ECC).
> >
> > Except that for a hybrid mode, both ML-KEM and ECC must be broken 
> > simultaneously.
> 
> ECC break under CRQC is a-given. Which should matter for PQC context. As has 
> been repeated countless times.

There is a misunderstanding here. The hybrid modes are obviously not meant for 
the time after a CRQC exist. But to manage the risk of relying only on 
algorithms based on new assumptions until this is the case, while at the same 
time having a chance to prevent store-now-break-later attacks.

> 
> > I think it is unwise to rely *only* on ML-KEM
> 
> Then don’t — nobody is making you to.
> 
> But don’t make decisions for somebody else, who — I assure you — knows what 
> s/he is doing (and isn’t trying to impose her “wise/unwise” upon you!).

You have missed the important part of the sentence. I am obviously not in the 
position to impose anything upon anyone. But I expressed that I do not support 
any draft that does not use hybrid crypto, and provided concrete arguments why. 
I guess that’s the purpose of this mailing list.

Kind regards,
Tibor

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