Generating NIST/Brainpool subkeys with GPGME

[Jacob Adams]

On 07/02/2018 02:37 AM, Werner Koch wrote:
> On Fri, 29 Jun 2018 22:07, tookmund at gmail.com said:
>> It appears that one cannot currently generate NIST or Brainpool subkeys
>> with GPGME. Using GPG itself works fine with --expert, so am I missing
>> an option or is this simply not possible yet?
> 
> That is likely a bug.  > In contrast to the cv25519 and ed25519 curves this (and the NIST curves)
> don't have an implict algorithm.  Thus gpg tries to deduce this from the
> usage parameter but that seems not to work. 


Should I file a bug against GPGME? GPG? Not really sure where the
problem is here.

> What you hsould do is to
> make it explicit:
> 
>   ./eccsubkeys brainpoolP384r1/ecdsa sign

Some testing confirms that I just need to add "/ecdsa" when creating a
signing or authentication key.

Thanks for your help!

Jacob



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