Trust is an indication of how sure you are of a person's ability to correctly extend the web of trust. When you are faced with a key you have not signed, the validity of that person's key will be determined based on the signatures they have collected and how well or not you trust the people who have made those signatures. By default, an unknown key will require 3 signatures with marginal trust value or 1 fully trusted signature.
Fidagarritasunak adierazten du zenbateraino zauden ziur pertsona batek gaitasuna duela sare fidagarria zuzen zabaltzeko. Zuk sinatu ez duzun gako baten aurrean aurkitzen zarenean, bildu dituen sinaduretan eta sinatu duten pertsonengan duzun fidagarritasunean oinarrituko da pertsona horren gakoaren balioa. Lehenespenez, gako ezezagun batek garrantzi gutxiko hiru sinadura edo fidagarritasun osoko sinadura bat beharko du.