This affects all the releases (not only bionic). The issue is that the test key expired. We need to renew the key (or generate a new one if easier) and SRU the change everywhere.
---
$ GNUPGHOME=$PWD/gnupg gpg -K
/home/paride/ubuntu/gu/simplestreams/gnupg/pubring.kbx
------------------------------------------------------
sec rsa1024 2013-02-26 [SCEA] [expired: 2023-02-24]
198E8D3C27227898CB4D413CA9714A203967536E
uid [ expired] Simple Streams Test User (Test Usage Only. Do Not Import.) <email address hidden>
This affects all the releases (not only bionic). The issue is that the test key expired. We need to renew the key (or generate a new one if easier) and SRU the change everywhere.
---
$ GNUPGHOME= $PWD/gnupg gpg -K ubuntu/ gu/simplestream s/gnupg/ pubring. kbx ------- ------- ------- ------- ------- ------- ----- 7227898CB4D413C A9714A203967536 E
/home/paride/
-------
sec rsa1024 2013-02-26 [SCEA] [expired: 2023-02-24]
198E8D3C2
uid [ expired] Simple Streams Test User (Test Usage Only. Do Not Import.) <email address hidden>