And so, it creates two classes of senders: One is unforgeable and guaranteed to be trustworthy. And the other class, you need to basically meet face to face, and add to your address book, before confirming that it is actually belonging to a person.
And so, it creates two classes of senders: One is unforgeable and guaranteed to be trustworthy. And the other class, you need to basically meet face to face, and add to your address book, before confirming that it is actually belonging to a person.