Any idea where I can get the GPG key used for the signature files on downloads.asterisk.org?
5D984BE337191CE7 but despite googling and trying a few GPG key servers I was unable to locate it.
Update: Thanks to @jcolp for the hint. I was able to acquire the key with:
gpg2 --keyserver keys.gnupg.net --recv-keys 5D984BE337191CE7
gpg --verify asterisk-18-current.tar.gz.asc gpg: assuming signed data in 'asterisk-18-current.tar.gz' gpg: Signature made Tue Dec 22 21:11:45 2020 UTC gpg: using RSA key 5D984BE337191CE7 gpg: Good signature from "Asterisk Development Team <firstname.lastname@example.org>" [unknown]