台支持安全抵禦已知明文攻擊的大型網絡機器。 已隱藏部分未翻譯内容,歡迎參與翻譯。 was an off-line non-reciprocal rotor encryption machine. In 1952, the machine was introduced by AFSA's successor
of the Middle Rotor," Cryptologia, 21(1), January 1997, pp. 47–50, 在线版(PDF) 互联网档案馆的存檔,存档日期2011-07-19. Philip Marks, "Umkehrwalze D:Enigma's Rewirable Reflector—Part