Use the --verbose or the --status-fd switch to get more information, what happens (both will report, that the key expired and following https://bugs.g10code.com/gnupg/issue714, --status-fd is designed to deliver meaningful information). I'll close this. Please reopen if you disagree.
** Bug watch added: GnuPG Bugs #714 https://bugs.g10code.com/gnupg/issue714 ** Changed in: gnupg (Ubuntu) Status: Confirmed => Invalid -- error message when a key has expired is not helpful https://bugs.launchpad.net/bugs/50675 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs