plugboard การใช้

• Have a chart instructing him in that day's plugboard settings.
• The plugboard contributed more cryptographic strength than an extra rotor.
• Initially, the plugboard only swapped six pairs of letters.
• Keys were easily changed by changing the rotor disks and the plugboard wires.
• The plugboard allowed less specialized conditions to be imposed.
• Line formatting was programmed by inserting wire jumpers into a plugboard control panel.
• Each letter on the plugboard had two jacks.
• They also did not know the plugboard settings.
• Other plugboards controlled card reading and punching, the printer and the console typewriter.
• By that time, the commercial Enigma had been extended to use a plugboard.
• In addition, ten leads were used on the plugboard leaving only six letters unsteckered.
• This was useful in working out plugboard settings when a possible solution was being examined.
• Those keys included the plugboard settings.
• Most military Enigmas also featured a plugboard ( German : " Steckerbrett " ).
• The IBM 305 RAMAC used a plugboard for all program compare operations and all branch operations.
• Overall the Q panel switches and the plugboard allowed about five billion different combinations of the selected variables.
• Electrical connections between the rotating drums'wiring and the rear plugboard were by means of metal brushes.
• The Polish Cipher Bureau then developed techniques to defeat the plugboard and find all components of the daily key.
• The reciprocal nature of the plugboard meant that no letter could be connected to more than one other letter.