Encryption enthusiast deciphers ‘Unsolvable’ WWI Encryption Code

Re:Encryption enthusiast deciphers ‘Unsolvable’ WWI Encrypti... by ColinWright on Monday December 30, 2013 @04:55AM (#6983902)

This article describes this as a "double transportation cipher" - which is incorrect. It's more correctly described in the article submitted nearly a week ago here:

https://news.ycombinator.com/item?id=6960168

That also has a link to a more complete description:

http://en.wikipedia.org/wiki/Double_transposition_cipher

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Re:Encryption enthusiast deciphers ‘Unsolvable’ WWI Encrypti... by throwaway_yy2Di on Monday December 30, 2013 @05:28AM (#6983992)

"During World War I, the German military used a double columnar transposition cipher, changing the keys infrequently. The system was regularly solved by the French, naming it Übchi, who were typically able to quickly find the keys once they'd intercepted a number of messages of the same length, which generally took only a few days. However, the French success became widely known and, after a publication in Le Matin, the Germans changed to a new system on 18 November 1914. [1]"

https://en.wikipedia.org/wiki/Double_transposition_cipher#Do...

Courtesy of M. Édouard Snoden.

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Re:Encryption enthusiast deciphers ‘Unsolvable’ WWI Encrypti... by nicolasbn on Monday December 30, 2013 @07:53AM (#6984385)

I think you meant: Mr. Édouard Neigedon.

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Re:Encryption enthusiast deciphers ‘Unsolvable’ WWI Encrypti... by anonymousexit on Monday December 30, 2013 @09:55AM (#6984818)

Are we all Germans now?

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