» List RPM keys you trust

Here's how to get a list of the GPG keys you have (and hence trust) in RPM's keyring:

rpm -qa --nodigest --nosignature \ --qf '%{VERSION}-%{RELEASE} %{SUMMARY}\n' \ gpg-pubkey\* \ | sed 's/ gpg(/ /;s/)$//'

If you want to remove a key from the RPM keyring, take the first field from the list above (represented by HASH below) and

rpm -e gpg-pubkey-HASH

(the above has obviously to be performed as root) As blogged by Duncan, Ladislav added a window in openSUSE 11.0's YaST2 to manage those keys in a much more user-friendly way.