Cryptography fromthe Medieval totheModern Ages ◾ 147
6. Wikipedia, Leon Battista Alberti, http://en.wikipedia.org/wiki/Leon_Battista_
Alberti.
7. Wikipedia, Vigenere Cipher, http://en.wikipedia.org/wiki/Vigenere_cipher.
8. Wikipedia, Substitution Cipher, http://en.wikipedia.org/wiki/Substitution_
cipher.
9. Wikipedia, Great Cipher, http://en.wikipedia.org/wiki/Great_Cipher.
10. Wikipedia, Enigma Machine, http://en.wikipedia.org/wiki/Enigma_machine.
11. Wikipedia, Lorenz Cipher, http://en.wikipedia.org/wiki/Lorenz_cipher.
12. Wikipedia, Bletchley Park, http://en.wikipedia.org/wiki/Bletchley_Park.
13. Wikipedia, Bombe, http://en.wikipedia.org/wiki/Bombe.
14. Wikipedia, Alan Turing, http://en.wikipedia.org/wiki/Alan_Turing.
15. ...