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CHARLES BABBAGE 884A6C7D-AF2A-4CB3-8C4D-B078A2B43EAE, John Napier…
CHARLES BABBAGE 
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Babbage achived notable result in Cryptography, as early 1845 he solved a cipher that had been posed as a challenge by this nephew
During the Crimean war of the 1850s Babbage broke Vigenere's autokey cipher as well as the much weaker cipher that today is called Vigenere cipher
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His discovery was kept a military secret and was not pubblished,the credi for the result was given to Friendrich Kasiski a prussian officer
John Napier
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he was born in 1550 in Edinburgh,Scotland.
A device called Napier’s rods or bones show his creativeness in the field of mathematics:multiplication,division and many other matematical functions Could be done mechanically
He never invented the natural logarithm function,it is sometimes know as the”Napierian Logarithm
Alan Turing
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Turing’s experiments Enigma helped the allies win de World War II ,by decoding enigma a German communications enecrypted,Enigma generanted a costantly changing code wich was impossible for peapole to decipher
Enigma
In 1950 he devised the Turing Test,the test consisted of an interrogator in a separate room asking questions via keyboard to both a pearson and an intelligent machine.
Colossus
At school he simply ingored subjects that did not interest him.he was an atheist and also felt marginalised because of him homosexuality
His life ended sadly when he committed suicide in June 1954 but he left the world a permanent Legacy