http://www.ciphermysteries.com The latest news, views, research and reviews on uncracked historical ciphers... Tue, 07 Feb 2012 04:43:49 +0000 hourly 1 http://wordpress.org/?v= http://www.ciphermysteries.com/the-chaocipher-cipher/comment-page-1#comment-20216  | ferndaledrive.com Mon, 05 Jul 2010 04:46:58 +0000 http://www.ciphermysteries.com/?page_id=836#comment-20216 [...] “The Chaocipher” is a devious cipher system invented in 1918 by John F. Byrne: allegedly, it was so complex that nobody could crack his challenge ciphertexts (even with the plaintext to refer to!), yet was so simple that its mechanism was claimed to comprise only two rotating disks small enough to fit in a cigar box, and could be operated by a ten-year-old (admittedly a diligent, determined and well-practised one) to encipher and decipher texts. [...] [...] “The Chaocipher” is a devious cipher system invented in 1918 by John F. Byrne: allegedly, it was so complex that nobody could crack his challenge ciphertexts (even with the plaintext to refer to!), yet was so simple that its mechanism was claimed to comprise only two rotating disks small enough to fit in a cigar box, and could be operated by a ten-year-old (admittedly a diligent, determined and well-practised one) to encipher and decipher texts. [...]

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