small warning messages on fedora core 6 kernel installation

[Nick Gawronski]

Hi, I remember reading some messages about this issue.  This is the
message I get when installing some package and the package does install I
would like to get this gpg key issue resolved.  Here is the error. This
happens with all kernel packages not just the one I am pasting the output
from.  warning: kernel-doc-2.6.20-1.2933.fc6spk.noarch.rpm: Header V3 DSA
signature: NOKEY, key ID 4bfffd75