Fail/warn :check if signature was made after key expired #643
Description
Is your feature request related to a problem? Please describe.
datafaker-net/datafaker#1502 (comment)
Describe the solution you'd like
Option to make :check fail or warn, if the signature was made after key expired.
:check should not fail when the key is found as expired in the :check-time if the key was not expired when the signature was made.
Describe alternatives you've considered
Doing it manually (with gpg).
Additional context
It seems that currently The Plugin accepts such signatures. This could be continued by default, but I'd like to fail the :check in cases as in datafaker-net/datafaker#1502.
Q: How to excuse dead cases... (known to not be resolved)?