Alan_Turing_and_Marian_Rejewski_Enigma 
Auguste_Kerckhoff 
Blaise De Vigenere_Vigenere_Cipher 
Charles_Babbage 
Emile_Baudot_Baudot_Cipher 
Felix_Delastelle_Bifid_Trifid_Cipher 
Francis_Bacon_Baconian_Cipher 
Francis_Beaufort_Beaufort_Cipher 
Fritz_Nebel_ADFGXV_Cipher 
John Francis Byrne_Chao_Cipher 
Julius_Caesar_Caesar_Cipher 
Leonardo_Fibonacci 
Samuel_Morse_Morse_Cipher 
Sir_Charles_Wheatstone_Playfair_Cipher 
Thomas_Jefferson_Jeffersons_Wheel_Cipher 
William_Friedman_and_Frank_Rowlett_Purple_Machine 
Zodiac_Killer_Zodiac_Cipher 
Napoleon_Bonaparte_Pigpen_Cipher
DECIPHER 