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Topic: Geheimfernschreiber

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	Geheimfernschreiber (Site not responding. Last check: 2007-11-07)
		While the Enigma machine was generally used by field units, the Geheimfernschreiber was used by Luftwaffe headquarters units which could support the heavy machine, teletypewriter and attendant fixed circuits.
		The Geheimfernschreiber had ten pinwheels, which were stepped in a complex, nonlinear way based on their positions from various delays in the past, but in such a way they could never stall.
		Each of the five plaintext bits was then XORed with the XOR sum of 3 taps from the pinwheels, and then cyclically adjacent pairs of plaintext bits were swapped or not, according to XOR sums of three (different) output bits.
	www.theezine.net /g/geheimfernschreiber.html (399 words)

	M-209
		The M-209 was about the size of a lunchbox, and represented a brilliant achievement for pre-electronic technology.
		It used a wheel scheme similar to that of a telecipher machine, such as the Lorenz cypher and the Geheimfernschreiber.
		From the code clerk's point of view, the M-209 was simple to operate.
	www.starrepublic.org /encyclopedia/wikipedia/m/m_/m_209.html (1453 words)

	Geheimfernschreiber - free-definition (Site not responding. Last check: 2007-11-07)
		This produces a much more complex cypher than the Lorenz machine, and also means that the Geheimfernschreiber is not just a pseudorandom number generator-and-XOR cipher.
		For example, if a cipher clerk erred and sent two different messages using exactly the same settings — a depth of two in Bletchley jargon — this could be detected statistically but was not immediately and trivially solvable as it would be with Lorenz.
		Partly this was because the Geheimfernschreiber was by far the most complex cypher of the three, but also because the Luftwaffe very often retransmitted STURGEON messages using easier to attack (or already broken) cyphers - thus attacking STURGEON was not the most economical way to get the plaintext!
	www.free-definition.com /Geheimfernschreiber.html (409 words)

	Endpaper: More reflections on World War II
		As a result, I was sent to the former German Gardaermon Airbase north of Oslo (today an international airport) to question the Luftwaffe personnel about German cryptographic systems and operations.
		I was also taught how to operate the German top secret Geheimfernschreiber (Secret Teletype Enciphering Machine), the most secret enciphering machine used for communications between Hitler and the German High Command in the field.
		Having been given the appropriate instructions, I brought one of the machines back to London where I wrote the English operating instructions as well as a report on the questioning of the Luftwaffe personnel about German cryptographic operations.
	www.brooklyn.cuny.edu /bc/pubs/bcmag/fall00/endpaper.htm (465 words)

	56 - Cryptonomicon - Colossus
		The most important was a teletype based machine built by Lorenz Electric, the Schlusselzerasatz.
		Another, different machine was designed and built by Siemens, the T-52 Geheimfernschreiber.
		An early version of the Siemens machine was used to send signals between Germany and Norway over a cable running through Sweden.
	www.electricinca.com /56/annotations/colossus.htm (620 words)

	New Page 1 (Site not responding. Last check: 2007-11-07)
		However, in addition to ENIGMA, the Germans had another cipher that was employed for their ultra-top-secret communications.
		This cipher, which was vastly more complicated that ENIGMA, was generated by a machine called a Geheimfernschreiber (secret telegraph), which the allies referred to as the "Fish.
		In January 1943, along with a number of colleagues, Turing began to construct an electronic machine to decode the Geheimfernschreiber cipher.
	www.ccaurora.edu /gmurphy/Chronicles/1941-1950.htm (202 words)

	Colossus computer (Site not responding. Last check: 2007-11-07)
		The most important was a teletype based machine built by Lorenz Electric, the SZ-40 (and later SZ-42) Schlusselzusatz (meaning, more or less, 'auxiliary key').
		Another, different, teletype cypher machine was designed and built by Siemens & Halske, the T-52 Geheimfernschreiber (meaning, 'secret teleprinter').
		Early versions of the Siemens machine (the T-52a and T-52b) were used to send signals between Germany and Norway over a cable running through Sweden.
	www.randomnugget.com /resource-Colossus_computer.html (978 words)

	Air Ionic Purifier (Site not responding. Last check: 2007-11-07)
		Ok, the short air ion pure purifier definition of a chemical radical on this disambiguation page is wrong.
		TUNNY) and Geheimfernschreiber ionic air purifier (code-named STURGEON).
		A particular class of guides are those employed in mountaineering; these are not merely to show the way but stand in the position of professional climbers with an expert knowledge of rock and snowcraft, which they impart to the amateur, at the same time assuring the safety of the climbing party in dangerous expeditions.
	air-purifier.funhosts.com /air-ionic-purifier.html (717 words)

	Colossus computer (Site not responding. Last check: 2007-11-07)
		Another, different machine was designed and built by Siemens.
		The Germans referred to one of them as the Geheimfernschreiber[?].
		It is combined with the plaintext (character by character) resulting in the cyphertext which is transmitted.
	www.factbase.info /co/colossus-computer.html (487 words)

	History of Computing (Site not responding. Last check: 2007-11-07)
		In addition to ENIGMA however, the Germans had another cipher that was employed for another top-secret communications.
		This cipher, which was vastly more complicated that ENIGMA, was generated by a machine called a Geheimfernschreiber.
		In 1943, along with a number of colleagues, Turing began to construct an electronic machine to decode the Geheimfernschreiber cipher.
	multimedia.design.curtin.edu.au /cache/content.cfm?content=74 (1626 words)

	Midterm 1
		Konrad Zuse, a German engineer, developped before and during World War 2 electromechanical calculation machines that were needed for the complex calculations in aircraft design such as wing stability.
		In January 1943, along with a number of colleagues in the British war time effort to break German codes, Turing began to construct an electronic machine to decode the Geheimfernschreiber (a super enigma) cipher.
		This machine, which they dubbed COLOSSUS, comprised 1,800 vacuum tubes and was completed and working by December of the same year.
	www.cse.scu.edu /~tschwarz/coen1/mt1.html (599 words)

	Ultra 10 (Site not responding. Last check: 2007-11-07)
		Later, the Germans began to use several different stream cipher teleprinter systems for their most important traffic, to which the Britishgave the generic code-name FISH.
		In reality, severaldistinct systems were used, principally the Lorenz SZ 40/42 (initially code-named TUNNY) and Geheimfernschreiber (code-named STURGEON).
		These also were broken, particularly TUNNY, which the British thoroughly penetrated.
	www.musicians-resource.com /site/24937-ultra-10.html (333 words)

	Air Breeze Ionic Personal Purifier (Site not responding. Last check: 2007-11-07)
		From these observatories and experiments it was recently found that neutrinos had rest mass, and could therefore transform into harder-to-detect varieties of neutrinos while en route from the Sun to Earth; thus measurement and theory were reconciled.
		TUNNY) and Geheimfernschreiber air breeze ionic personal purifier (code-named STURGEON).
		They all wear green, flair air purifier and Delta children wear khaki.
	air-purifier.hostrim.com /air/breeze-ionic-personal-purifier.html (750 words)

	Orek Air Purifier (Site not responding. Last check: 2007-11-07)
		Government, police, fire and commercial voice services use oreck xl air purifier narrowband FM on special frequencies.
		TUNNY) and allergy relief air purifier Geheimfernschreiber (code-named STURGEON).
		Several forms of radio were pioneered by radio amateurs and later became commercially important, including FM, single-sideband AM, digital packet radio and satellite repeaters.
	air-purifier.funhosts.com /orek-air-purifier.html (895 words)

	Computer Pioneers
		In 1936 presented a 'paper' design for a machine that could solve any problem presented to it in symbolic form - 'The Turing Machine'.
		In January 1943, along with a number of colleagues, Turing began to construct an electronic machine to decode the German Geheimfernschreiber cipher.
		COLOSSUS, comprised 1,800 vacuum tubes and was completed and working by December of the same year.
	www.ucalgary.ca /~bakardji/computing/pioneers.html (832 words)

	Air Clean Purifier (Site not responding. Last check: 2007-11-07)
		The Arp article should not have an NPOV problem at all, since it would be about his ideas and life, hence they are his points of view, which should be fine in an article about him.
		TUNNY) and air clean purifier Geheimfernschreiber (code-named STURGEON).
		Microsoft has been accused of decimating air clean purifier its rivals, with the "bundled" Windows Media Player or Internet Explorer for example.
	air-purifier.beplaced.com /air/clean-purifier.html (851 words)

	Air Blueair Purifier (Site not responding. Last check: 2007-11-07)
		TUNNY) and Geheimfernschreiber room air purifier (code-named STURGEON).
		These also were broken, particularly TUNNY, which the
		Health air blueair purifier also implies good prospects for continued survival.
	air-purifier.hostrim.com /air-blueair-purifier.html (868 words)

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