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Die Turingery (auch genannt: Turingismus o … Die Turingery (auch genannt: Turingismus oder Turing's Method) war eine vom britischen Kryptoanalytiker Alan Turing im Juli 1942 in der Forschungsabteilung von Bletchley Park (B.P.) ersonnene und nach ihm benannte kryptanalytische Methode zum Bruch der von der deutschen Wehrmacht im Zweiten Weltkrieg zur Verschlüsselung ihrer hochgeheimen strategischen Funkfernschreibverbindungen eingesetzten Lorenz-Schlüsselmaschine (Eigenbezeichnung: Schlüsselzusatz 40; kurz: SZ 40; englischer Deckname Tunny; deutsch „Thunfisch“).cher Deckname Tunny; deutsch „Thunfisch“).
, Turingery or Turing's method (playfully du … Turingery or Turing's method (playfully dubbed Turingismus by Peter Ericsson, Peter Hilton and Donald Michie) was a manual codebreaking method devised in July 1942 by the mathematician and cryptanalyst Alan Turing at the British Government Code and Cypher School at Bletchley Park during World War II. It was for use in cryptanalysis of the Lorenz cipher produced by the SZ40 and SZ42 teleprinter rotor stream cipher machines, one of the Germans' Geheimschreiber (secret writer) machines. The British codenamed non-Morse traffic "Fish", and that from this machine "Tunny" (another word for the tuna fish). Reading a Tunny message required firstly that the logical structure of the system was known, secondly that the periodically changed pattern of active cams on the wheels was derived, and thirdly that the starting positions of the scrambler wheels for this message—the message key—was established. The logical structure of Tunny had been worked out by William Tutte and colleagues over several months ending in January 1942. Deriving the message key was called "setting" at Bletchley Park, but it was the derivation of the cam patterns—which was known as "wheel breaking"—that was the target of Turingery. German operator errors in transmitting more than one message with the same key, producing a "depth", allowed the derivation of that key. Turingery was applied to such a key stream to derive the cam settings.h a key stream to derive the cam settings.
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, http://www.alanturing.net/turing_archive/archive/index/tunnyreportindex.html +
, http://www.ellsbury.com/tunny/tunny-001.htm +
, http://www.bletchleypark.org.uk/content/lorenzcipher.pdf +
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Die Turingery (auch genannt: Turingismus o … Die Turingery (auch genannt: Turingismus oder Turing's Method) war eine vom britischen Kryptoanalytiker Alan Turing im Juli 1942 in der Forschungsabteilung von Bletchley Park (B.P.) ersonnene und nach ihm benannte kryptanalytische Methode zum Bruch der von der deutschen Wehrmacht im Zweiten Weltkrieg zur Verschlüsselung ihrer hochgeheimen strategischen Funkfernschreibverbindungen eingesetzten Lorenz-Schlüsselmaschine (Eigenbezeichnung: Schlüsselzusatz 40; kurz: SZ 40; englischer Deckname Tunny; deutsch „Thunfisch“).cher Deckname Tunny; deutsch „Thunfisch“).
, Turingery or Turing's method (playfully du … Turingery or Turing's method (playfully dubbed Turingismus by Peter Ericsson, Peter Hilton and Donald Michie) was a manual codebreaking method devised in July 1942 by the mathematician and cryptanalyst Alan Turing at the British Government Code and Cypher School at Bletchley Park during World War II. It was for use in cryptanalysis of the Lorenz cipher produced by the SZ40 and SZ42 teleprinter rotor stream cipher machines, one of the Germans' Geheimschreiber (secret writer) machines. The British codenamed non-Morse traffic "Fish", and that from this machine "Tunny" (another word for the tuna fish). "Tunny" (another word for the tuna fish).
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