2. New system of encryption of messages over the network - private cryptography where the ciphers are unknown to the Secret Government.
Strong cryptography doesn't rely on the cipher being unknown. That is security through obscurity and results in poor security. History is littered with examples, WEP, CSS, AACS, A5/1, A5/3, etc.
Strong cryptography involves making the cipher public knowledge. "Here is how the lock works, but you still can't unlock it without the key."