Assegnare fiducia ad altri utenti
È il cerchio della fiducia: o sei dentro o sei fuori!
Robert De Niro a Ben Stiller in "Ti presento i miei"

Si può assegnare fiducia ad un identificativo (alla sua chiave) tramite il comando

nel menu di
gpg --edit-key

I livelli di fiducia sono:

Nothing is known about the owner's judgment in key signing. Keys on your public keyring that you do not own initially have this trust level.

The owner is known to improperly sign other keys.

The owner understands the implications of key signing and properly validates keys before signing them.

The owner has an excellent understanding of key signing, and his signature on a key would be as good as your own.

Solo nelle versioni più recenti.