Odd error

Todd Zullinger tmz at pobox.com
Tue Dec 1 22:08:52 CET 2020


Hi,

Werner Koch wrote:
> I looked at the Fedora Libgcrypt source and noticed that they ship
> libgcrypt with the nistp192 and all brainpool curves removed.  I have
> not yet build this version but given that one of your keys has brainpool
> curves this might be the culprit.
> 
> I can understand that they remove nistp192 for security policy reasons.
> But I do not understand why the brainpool curves are removed.  The
> general statement in the spec file is that curves need to be removed due
> to patent rasons.  However, Brainpool curves are less prone to patent
> claims for fast multiplication than the NIST curves and we actually use
> the very same code for all those Weierstrass curves. 

FWIW, I noticed that someone recently asked about the status
of the ECC Brainpool curves on the Fedora Legal list:

https://lists.fedoraproject.org/archives/list/legal@lists.fedoraproject.org/thread/WUQNAB4EPWSJMMVECL2TZGKB5KIDESII/

With luck, a fresh review by the Red Hat legal folks will
result in those curves becoming accessible in the Fedora
libgcrypt packages.

Cheers,

-- 
Todd



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