The following is the GNU All-permissive License as recommended in https://www.gnu.org/licenses/license-recommendations.en.html

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.

Contributions are welcome. See https://savannah.gnu.org/maintenance/fsf/.

GnuPG / GPG

keyservers

Note that these key servers may contain keys spammed with bogus signatures that might break your ~/.gnupg dir. It's best not to use them if you can avoid it. Before importing or refreshing keys, it's important to make a backup of your ~/.gnupg directory for easy recovery. More info here, and a possible recovery process.

keyring.debian.org
keys.gnupg.net
pool.sks-keyservers.net
keyserver.ubuntu.com
pgp.mit.edu (generally very slow)

long key ID strings by default

Add this to ~/.gnupg/gpg.conf:

keyid-format 0xlong

WKD

Web Key Directory (WKD) allows Thunderbird and other email clients to fetch PGP keys from our servers rather than keys.openpgp.org. This allows us to work around a Thunderbird bug for now. WKD is easy to set up as a static directory under Nginx or Apache.

See the generic guide https://gist.github.com/kafene/0a6e259996862d35845784e6e5dbfc79.

mkdir wkd ; cd wkd

# get the main hash that you want
gpg --with-wkd-hash --fingerprint edward-en@fsf.org

gpg --no-armor --export edward-en@fsf.org > eix5xw7cppcb1wwpq69rhseb31rky1uy

gpg --with-wkd-hash --fingerprint edward-en@fsf.org | grep -E -e "fsf.org$" | sed -e "s/\s*//;s/@fsf.org$//" | xargs -I {} ln -s eix5xw7cppcb1wwpq69rhseb31rky1uy {}

Sync the files to the Web server under a path like fsf.org:/var/www/wkd/.well-known/openpgpkey/hu/.

For Nginx:

location /.well-known/openpgpkey {
  root /var/www/wkd;
}

It's okay if fsf.org redirects to a URL on www.fsf.org.

Test: gpg --auto-key-locate clear,wkd --locate-keys edward-en@fsf.org