[Cryptography] Happy birthday, Charles Babbage!

Dave Horsfall dave at horsfall.org
Wed Dec 25 14:58:37 EST 2019

Born in 1791, Charles Babbage KH FRS is known for many things, but did you 
know that he was also involved in crypto?  He broke the Vigenère cipher, 
but it was kept a military secret so Friedrich Kasiski got the credit.

-- Dave

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