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Topic: Enigma rotor details

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	Enigma machine (Site not responding. Last check: 2007-10-14)
		The Enigma was used commercially from the early 1920s on, and was also adopted by the military and governmental services of a number of nations — most famously by Nazi Germany before and during World War II (WWII).
		Approximately 10 cm in diameter, each rotor is a disk made of hard rubber or bakelite with a series of brass spring-loaded pins on one face arranged in a circle; on the other side are a corresponding number of circular electrical contacts.
		In early Enigma models, the alphabet ring is fixed; a complication introduced in later versions is the facility to adjust the alphabet ring relative to the core wiring.
	enigma-machine.iqnaut.net (4883 words)

	Enigma rotor details - Wikipedia, the free encyclopedia (via CobWeb/3.1 planetlab2.cs.unc.edu) (Site not responding. Last check: 2007-10-14)
		The Roman numeral V identifies the wiring of the rotor.
		The scrambling action of the Enigma rotors shown for two consecutive letters — current is passed into set of rotors, around the reflector, and back out through the rotors again.
		When a rotor has stepped, you must take into account the offset to know what the output is, and where it enters the next rotor.
	en.wikipedia.org.cob-web.org:8888 /wiki/Enigma_rotor_details (792 words)

	Talk > Enigma machine
		The Triton system let the fourth rotor be operated in a fixed position so that it could communicate with three rotor Enigmas, notably those which continued to be used by the weather service.
		The Japanese are said to have obtained an Enigma machine as early as 1937, although whether they were given it by their German allies, or bought a commercial version which, except for the plugboard and the actual rotor wirings, was essentially the German Army / Air Force machine, is disputed.
		Where rotor I in the A-position normally encodes an 'A' into an 'E', with a ringsetting offset B-02 it will be encoded into 'K' As mentioned before these encodings only happen after the key is pressed and the rotor has turned.
	www.libraryoflibrary.com /E_n_c_p_d_Talk:Enigma_machine.html (9698 words)

	Cryptanalysis of the Enigma - Wikipedia, the free encyclopedia (via CobWeb/3.1 planetlab2.cs.unc.edu) (Site not responding. Last check: 2007-10-14)
		Enigma is the name of a family of ciphering machines made famous by their use in World War II and the successful solution of the cipher by Allied codebreakers.
		The Enigma machine was used commercially from the early 1920s, and was also adopted by military and governmental services of a number of nations — most famously, by Nazi Germany before and during World War II.
		The first capture of Enigma material occurred in February 1940, when rotors VI and VII, the wiring of which was at that time unknown, were captured from the crew of U-33.
	en.wikipedia.org.cob-web.org:8888 /wiki/Cryptanalysis_of_the_Enigma (3569 words)

	Enigma machine - Wikipedia, the free encyclopedia
		Approximately 10 cm in diameter, each rotor is a disc made of hard rubber or bakelite with a series of brass spring-loaded pins on one face arranged in a circle; on the other side are a corresponding number of circular electrical contacts.
		A four-rotor Enigma was introduced by the Navy for U-boat traffic on 1 February 1942, called M4 (the network was known as Triton, or Shark to the Allies).
		Enigma G, used by the Abwehr, had four rotors, no plugboard, and multiple notches on the rotors.
	en.wikipedia.org /wiki/Enigma_code (6248 words)

	misspelledsearch.info: ultra wheels variant information page (Site not responding. Last check: 2007-10-14)
		The Enigma was widely thought to be unbreakable in practice in the 1920s when a variant of the commercial Model D was first used by the German Navy.
		By 1938 much German Enigma traffic was being routinely deciphered by the Poles, but a change in German operations (greater rotor choice), and the impending war led the Poles to share their work on Enigma with France and England.
		It is commonly claimed that the breaks into Naval enigma resulted in the war being a year shorter, but given its effects on the Battle of the Atlantic (1940) alone, that might be an underestimate.
	www.misspelledsearch.info /ultra%20wheels.htm (4071 words)

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