GNOME Bugzilla – Bug 730434
GPG passphrase rememberd too long
Last modified: 2016-02-23 09:56:22 UTC
There does not seem to be a way to make gnome-keyring forget the GPG passprase, other than logging out. It would be more secure if a timeout could be set.
gnome-keyring no longer implements a gpg-agent. The gnupg agent and pinentry have been better integrated with GNOME. https://mail.gnome.org/archives/distributor-list/2015-August/msg00000.html