<p>For example, if you first [[authenticate the Tails signing key through the OpenPGP Web of Trust|install/download#wot]], then you can verify our others keys as they are all certified by the Tails signing key.</p>
Plugging other removable media in the air-gapped Tails to send the public key, secret key stubs, parts of the secret master key, and so on to the outside world.
Stored on OpenPGP smartcards owned by those who need them.Smartcards ensure that the cryptographic operations are done on the smartcard itself and that the secret cryptographic material is not directly available to the operating system using it.