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Cryptography / Classic ciphers

Lesson 5 of 25

Vigenère and Enigma

Vigenère uses a keyword to change the shift for each letter. Enigma was a WW2 machine whose rotors changed the substitution with every key press. Both were eventually broken.

Key points

  • Vigenère: repeating keyword shifts
  • Enigma was broken at Bletchley Park
  • Alan Turing helped build the machines that cracked it
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Quiz · +10 XP

Who helped break Enigma at Bletchley Park?

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