The graphical method

To graphically add the GPG keys using KPackageKit:

Note: The instructions for the graphical method may not work for you. For the time being, we recommend you use the command line method explained below.

Kubuntu PPA and Kubuntu Backports PPA

These instructions are for the http://ppa.launchpad.net/kubuntu-ppa/ppa/ubuntu and for the http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu repository.

It is strongly recommended that you verify the integrity of these repositories packages by installing the archive's GPG key. You may do this by saving the PUBLIC KEY BLOCK available from this page to a file and importing it from the authentication tab in KPackageKit's software sources window.

The command line method

This method requires you to open a terminal emulator, konsole, xterm, etc.

Kubuntu PPA and Kubuntu Backports PPA

These instructions are for the http://ppa.launchpad.net/kubuntu-ppa/ppa/ubuntu and for the http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu repository.

It is strongly recommended that you verify the integrity of these repositories packages by installing the archive's GPG key. You may do this by running the following commands:

gpg --keyserver keyserver.ubuntu.com --recv 2836CB0A8AC93F7A
gpg --export --armor 2836CB0A8AC93F7A | sudo apt-key add -