02/10/2021

Which Cipher of Henrietta-Maria Did Babbage Solve?

Mathematician Charles Babbage's papers show he solved a cipher of Henrietta-Maria, queen of King Charles I of England. Now, I identified it is what I call "Third Cipher between Charles I and Henrietta-Maria" in King Charles I's Ciphers.
I reflected it in "Charles I's Cipher Revealed: Sir Charles Wheatstone's Codebreaking", the first update since its release in 2009 (which was even before I posted "King Charles I's Ciphers", by the way).

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