On Fri, Feb 27, 2026 at 10:45:02PM +0000, Blumenthal, Uri - 0553 - MITLL wrote:
> >> - 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.

The fundamental disconnect is that there are:

 - participants who do not believe CRQC are happening any time soon
 - participants who do     believe CRQC are happening          soon
   (for some value of soon)

and

 - participants who        worry that NSA might have a cryptanalysis of
   ML-KEM-768 that has it have a strength of, say, 2^70ish
 - participants who do not worry that NSA might have a cryptanalysis of
   ML-KEM

Given that, the only aproach that will please all sides is to stick to
hybrids.

But then there are participants who insist on pure PQ because of
performance, CNSA 2.0, etc. -- not terribly good reasons.

I don't know how you break this impasse, but "repeat[ing] countless
times" is not a good answer.

Cheers,

Nico
-- 

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