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Book cipher. The King James Bible, a highly available publication suitable for the book cipher. A book cipher is a cipher in which each word or letter in the plaintext of a message is replaced by some code that locates it in another text, the key . A simple version of such a cipher would use a specific book as the key, and would replace each ...
Nihilist cipher. In the history of cryptography, the Nihilist cipher is a manually operated symmetric encryption cipher, originally used by Russian Nihilists in the 1880s to organize terrorism against the tsarist regime. The term is sometimes extended to several improved algorithms used much later for communication by the First Chief ...
Ottendorf, Schleswig-Holstein, in the Rendsburg-Eckernförde district, Schleswig-Holstein. Ottendorf, Thuringia, in the Saale-Holzland-Kreis district, Thuringia. Ottendorf (Sebnitz), a village in the municipality of Sebnitz, Sächsische Schweiz-Osterzgebirge district, Saxony. A part of Bahretal in the Sächsische Schweiz-Osterzgebirge district ...
Silence Dogood. Silence Dogood was the pen name used by Benjamin Franklin to get his work published in the New-England Courant, a newspaper founded and published by his brother James Franklin. This was after Benjamin Franklin was denied several times when he tried to publish letters under his own name in the Courant.
Category:Undeciphered historical codes and ciphers. Category. : Undeciphered historical codes and ciphers. Wikimedia Commons has media related to Uncracked codes and ciphers. A list of as-yet-undeciphered codes and ciphers, mostly of historical interest.
History of cryptography. Cryptography, the use of codes and ciphers to protect secrets, began thousands of years ago. [1] Until recent decades, it has been the story of what might be called classical cryptography — that is, of methods of encryption that use pen and paper, or perhaps simple mechanical aids.
Sorge's group used a sophisticated variant of the "Nihilist cipher". This incorporated a running key cipher ( not a book cipher) for the 2nd of 3 stages. The running key was derived from a high entropy source; in combination with the modest compression provided in the first stage, this generated a ciphertext with a very high unicity distance.
Otterndorf ( German: [ˈɔtɐndɔʁf] ⓘ; Northern Low Saxon: Oterndörp) is a town on the coast of the North Sea in the federal state of Lower Saxony, Germany, and is part of the collective municipality ( Samtgemeinde) of Land Hadeln. The town, located in the administrative district ( Landkreis) of Cuxhaven, is at the mouth of the river Medem ...