Just some quick, possibly uninformed, usability comments based on a quick glance... Puts the number used as identity (address) up front in a way that the user

Just some quick, possibly uninformed, usability comments based on a quick glance... Puts the number used as identity (address) up front in a way that the user can understand what it means. So better than most. Combining that identity with trust in a dialog seems to be relatively understandable. Having a category other than trusted and untrusted (unknown) is a good idea but is not immediately understandable. The user of course would have to be instructed to know exactly what "trust" means in this context. The user doesn't need to know that they are using Curve25519. Just that some sort of encryption has been achieved. Hex for the identity number is the worst possible choice of base. Either decimal which is quite familiar for identifying things or base32 for shorter numbers. The identity number should be consistently displayed in some helpful grouping (4 groups of 5?).