KRYPTERINGS- OCH DEKRYPTERINGSAPPARAT I FORM AV SKRIVMASKIN

摘要

An enciphering and deciphering apparatus in the form of a typewriter having an input device for the input of characters to be processed, a control device for the input of control commands determining the mode of operation of the apparatus and an output device possessing at least one page printer. A display device is connectable with the input device for the stepwise progressive display of the infed characters. The output side of the display device can be selectively connected with the printer, with a cipher computer or a key character storage associated with the cipher computer. The cipher computer has its output side connectable with the printer. A central control unit is provided which can be controlled by the control device. The central control unit fixes as a function of the infed control commands the data routes in the apparatus and controls the components of the apparatus, and depending upon the infed control commands the printer receives and prints the characters displayed by the display device or the characters produced by the cipher computer.