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About: The Alphabet Cipher     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Message106253690, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatClassicalCiphersyago:Abstraction100002137yago:Cipher106254239yago:Communication100033020yago:Message106253690 New Facet based on Instances of this Class

Lewis Carroll published "The Alphabet-Cipher" in 1868, possibly in a children's magazine. It describes what is known as a Vigenère cipher, a well-known scheme in cryptography. While Carroll calls this cipher "unbreakable," Kasiski had already published in 1863 a volume describing how to break such ciphers and Charles Babbage had secretly found ways to break polyalphabetic ciphers in the previous decade during the Crimean War. The piece begins with a tabula recta.