I wonder if it would be possible to take the idea of certificate authorities and apply it to cell phone towers. Basically, each cell tower company would be a CA, and could generate a certificate for each cell tower. Major cell tower companies could then be trusted by other CAs, and cell phones could have a store of trusted CAs. Then, when a cell phone attempts to connect to a tower, a check is made to verify that the tower is trusted by a trusted CA. This way, a user could (at least maybe) revoke a certificate from a CA that has trusted a group that has set up a cell site simulator.

My knowledge of PKI is pretty shaky. Does anyone know if something like this would work and/or be an improvement?