<p>If you already certified the Tails signing key with your own key, you can skip this step and start [[downloading and verifying the USB image|expert#download]].</p>
In this step, you will download and verify the *Tails signing key* which is the OpenPGP key that is used to cryptographically sign the Tails USB image.
Import the OpenPGP key of [[!wikipedia Chris_Lamb_(software_developer) desc="Chris Lamb"]], a former Debian Project Leader, from the Debian keyring into your keyring:
<div class="tip"> <p>The line <code>175 signatures not checked due to missing keys</code> or similar refers to the certifications (also called <i>signatures</i>) made by other public keys that are not in your keyring. This is not a problem.</p> </div>