Sometime before GA we need to sign all of the packages with the RHEL 6 GA key (FD431D51).
Key is added to the site at https://www.redhat.com/security/fd431d51.txt however it is not yet linked into the portal or site key page, that will take place nearer GA.
Also at http://pgp.mit.edu:11371/pks/lookup?search=0xfd431d51&op=index
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.