Looks like this is a quite a well-known issue in debian systems. - Virtual Box even mentions this workaround in their Linux downloads page: "What to do when experiencing The following signatures were invalid: BADSIG ... when refreshing the packages from the repository? " <http://www.virtualbox.org/wiki/Linux_Downloads>
-- You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. https://bugs.launchpad.net/bugs/24061 Title: GPG error with apt-get/aptitude/update-manager behind proxy (BADSIG 40976EAF437D05B5) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs