11. The embassy was then to destroy their cipher machines . 12. In December 1932, the Polish Cipher Bureau tasked Marian Rejewski with breaking the Enigma cipher machine . 13. Reverse : A stylised labyrinth of connections referring to the operation of the Enigma cipher machine . 14. From 1943 the Americans and the British agreed upon a Combined Cipher Machine ( CCM ). 15. Leibniz also devised a ( now reproduced ) cipher machine , recovered by Nicholas Rescher in 2010. 16. She worked on developing an early cipher machine . 17. Friedman described to Rowlett a concrete design for a teleprinter cipher machine that he had invented. 18. Other cipher machines which used pinwheels include the C-52, the CD-57 and the Siemens and Halske T52. 19. "' JADE "'was the codename given by US codebreakers to a Japanese World War II cipher machine . 20. In the history of cryptography, the "'Enigma machine "'was a portable cipher machine used to More . ..
