Zygalski Sheets

Zygalski Sheets

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The method of Zygalski sheets was a cryptologic technique used by the Polish Cipher Bureau before and during World War II, and during the war also by British cryptologists at Bletchley Park, to decrypt messages enciphered on German Enigma machines. The Zygalski-sheet apparatus takes its name from Polish Cipher Bureau mathematician-cryptologist Henryk Zygalski, who invented it about October 1938. Zygalski's device comprised a set of 26 perforated sheets for each of the, initially, six possible sequences for inserting the three rotors into the Enigma machine's scrambler. Each sheet related to the starting position of the left rotor.
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Product details

  • Paperback | 88 pages
  • 152 x 229 x 5mm | 141g
  • United States
  • English
  • black & white illustrations
  • 6136388073
  • 9786136388076