Finding a “good” OpenPGP key server

["Ludovic Courtès" <ludo@gnu.org>]

Hi,

Tanguy LE CARROUR <tanguy@bioneland.org> skribis:

> $ ./pre-inst-env guix refresh -u gnurl
>
> Starting download of /tmp/guix-file.NqJa4t
> From https://ftpmirror.gnu.org/gnu/gnunet/gnurl-7.72.0.tar.gz...
> following redirection to `https://mirrors.ocf.berkeley.edu/gnu/gnunet/gnurl-7.72.0.tar.gz'...
>  …2.0.tar.gz  3.3MiB                  3.1MiB/s 00:01 [##################] 100.0%
>
> Starting download of /tmp/guix-file.VXn0IS
> From https://ftpmirror.gnu.org/gnu/gnunet/gnurl-7.72.0.tar.gz.sig...
> following redirection to `https://mirrors.ocf.berkeley.edu/gnu/gnunet/gnurl-7.72.0.tar.gz.sig'...
>  …0.tar.gz.sig  833B                  654KiB/s 00:00 [##################] 100.0%
> gpgv: Signature made Wed 16 Sep 2020 22:30:16 CEST
> gpgv:                using RSA key 6115012DEA3026F62A98A556D6B570842F7E7F8D
> gpgv: Can't check signature: No public key
> Would you like to add this key to keyring '/home/tanguy/.config/guix/upstream/trustedkeys.kbx'?
> yes
> gpg: keyserver receive failed: No data

This indicates that ‘guix refresh’ failed to download the relevant GPG
key from the default key server, the one that appears in
~/.gnupg/dirmngr.conf (if it exists).

That’s unfortunately often the case these days.  :-/ This key appears to
be on keys.openpgp.org, but it lacks a “user ID” packet and so gpg
ignores it (for no good reason):

--8<---------------cut here---------------start------------->8---
$ gpg --no-default-keyring --keyring /home/ludo/.config/guix/upstream/trustedkeys.kbx --keyserver keys.openpgp.org --recv-keys 6115012DEA3026F62A98A556D6B570842F7E7F8D
gpg: key D6B570842F7E7F8D: no user ID
gpg: Total number processed: 1
$ gpg --no-default-keyring --keyring /home/ludo/.config/guix/upstream/trustedkeys.kbx --list-keys 6115012DEA3026F62A98A556D6B570842F7E7F8D
gpg: error reading key: No public key
--8<---------------cut here---------------end--------------->8---

I’m not sure what a good solution is (other than looking for the key
manually on Savannah or on some random key server).

Ludo’.