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3.1 (Cryptography History (1300's, Geoffrey Chaucer included several…
3.1
Cryptography History
1300's, Geoffrey Chaucer included several ciphers in his works ... father of English Literature, famous poet
1460's, Leon Alberti devised a cipher wheel, and described the principles of frequency analysis
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1585, Blaise de Vigenère published a book on cryptology and described polyalphabetic substitution cipher.
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