When you run into something odd using yum, the first thing to try is:
and then retry whatever wasn’t working.
If that doesn’t work, try reinstalling the keys from a different location:
Code:
# rpm --import /usr/share/doc/fedora-release-4/RPM-GPG-KEY*
OR
# rpm --import ftp://ftp.net.usf.edu/pub/fedora/linux/core/4/i386/os/RPM-GPG-KEY
And, of course, you can always install a package using rpm.