Red Hat Training
A Red Hat training course is available for Red Hat Enterprise Linux
B.3.2. Verifying Signature of Packages
To check the GnuPG signature of an RPM file after importing the builder's GnuPG key, use the following command (replace <rpm-file> with the file name of the RPM package):
rpm -K <rpm-file>
If all goes well, the following message is displayed:
md5 gpg OK. This means that the signature of the package has been verified, that it is not corrupt, and therefore is safe to install and use.