From jim at tadpole.com Wed Jul 14 10:52:57 1993 From: jim at tadpole.com (jim at tadpole.com) Date: Wed, 14 Jul 93 10:52:57 PDT Subject: Secure comm program, Sockets + LINK Message-ID: <9307141752.AA00397@ono-sendai> > You can't even solve the problem with DH key exchange -- you are > subject to "man in the middle" attacks. You must share SOME > information via a secure channel in order to have both authentication > and privacy on a channel. However, the information exchanged could be > small and fairly one-time -- like the public key of a trusted entity > that signs other public keys. How do STU-III phones work then? Do they have some key in rom? Jim