Labels:text | font | black and white | paper OCR: UNBREAKABLE CODE recalls, "I called Hellman, and we each immediately found the other to be the most informed person in By Roger Rapoport this field not governed by federal security regula- tions." The problem they were trying to solve is lodged deep in modern code practices. Most coded messages these days are sent from one computer to Were you the sort of kid who loved to fiddle with a another over telephone lines. For confirmation, secret-code ring? Do you send messages that you they are also sent by courier. But that doesn't come wouldn't want business competitors to intercept? cheap, and it often means delays when long dis- Perhaps you cringe at the thought of a tax audit. If tances are involved. A computer-wise thief who's so, you're going to love this. wormed his way into a bank's mes ...
