gpg

Encrypt file:

You will be prompted to enter a passphrase twice. The output is a file of the same name with ".gpg" as the extension.

Decrypt via:

By default the encrypted file is binary format with smaller file size. If you need ascii, then use the "-a" option which then outputs as "private.txt.asc".

While install the puppet dashboard, I noticed puppetlabs yum repo changed from using "http://yum.puppetlabs.com/RPM-GPG-KEY-reductive" to "http://yum.puppetlabs.com/RPM-GPG-KEY-puppet" causing yum to fail on the key import. I had run the key import manually couple times before I realized, yum was complaining about a different key.

Below is how I got around to removing all of the imported gpgkeys:

Find GPG keys and owners:

Remove corresponding GPG Key.