People keep proposing this as if federated key distribution is easy, and as if iCloud could with sheer force of will can just do it correctly. There is a reaso

People keep proposing this as if federated key distribution is easy, and as if iCloud could with sheer force of will can just do it correctly. There is a reason nobody serious is trying to make email encryption work: secure messaging is already incredibly hard when you control every piece of the system; with email, you control absolutely nothing.