James Bottomley <[email protected]> wrote:

> > We're looking at moving to ML-DSA, and the CMS support there is
> > slightly dodgy at the moment, so we need to hold off a bit on this
> > change.
> 
> How will removing PKCS7_sign, which can only do sha1 signatures affect
> that? Is the dodginess that the PKCS7_... API is better than CMS_...
> for PQS at the moment?  In which case we could pretty much do a rip and
> replace of the CMS_ API if necessary, but that would be a completely
> separate patch.

OpenSSL-3.5.1's ML-DSA support isn't completely right - in particular
CMS_NOATTR is not currently supported.  I believe there is a fix in the works
there, but I doubt it has made it to all the distributions yet.  I'm only
asking that we hold off a cycle; that will probably suffice.

David


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