In Switzerland, Hagelin used the C-52 to construct the most widely used cipher machine during the Cold War. The C-52 uses configurable rotors which work with movable bars in a lug cage. A purely mechanical system, the C-52 achieved a key space of 4.13 sexdecilliards—more than the number of atoms in the universe.


  • Title: CX-52 mechanical cipher machine
  • Creator: Crypto AG (gegr. 1952)
  • Date Created: 1952
  • Location Created: Zug, Schweiz
  • Rights: © Museumsstiftung Post und Telekommunikation
  • Material: Metalle, Kunststoffe

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