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Fayl:Enigma.jpg

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Enigma.jpg (450 × 600 piksel, fayl hajmi: 89 KB, MIME tipi: image/jpeg)

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Taʼrif
English: Enigma Machine at NSA

Case Cover -- Maintenance

The German under the case cover translates:

To Observe!

Observe the manual for the Encryptionmachine (H. Dv. g. 13)

1. To clean the roller contacts, turn all rolls several times backwards and forwards.

2. To clean the key contacts, press all keys down strongly before turning on power several times and let them pop back up while one key remains pressed.

3. While selection of the characters which are visible in the window, observe that the rollers are in the right position.

4. The "fool proof" (literally: unconfusable) double pole plugs are to be inserted into the holes all the way. The front wooden panel is to be closed, since otherwise three lamps could be lit at the same time.

5. If no lamps are lit after pressing a key, check battery, contact springs, connectors at the switch and the switch itself.

6. If one or more lamps do not light up with a key pressed, the corresponding lamps, the contacts underneath them, the cables of the double poled plugs, the plug receptacles including their short circuit panels, the roller contacts, the working contacts underneath the pressed keys and the "resting"(?) contacts underneath the corresponding keys are to be checked and if dirty or oxidized are to be cleaned (see also number 2).

7. Roller axle and roller receptacles are to be kept clean and like any other bearings occasionally slightly oiled with a sap- and acid-free oil. The fixed contacts of the rollers are to be sanded every six to eight weeks with polishing paper and rubbed with a slighlty oily cloth. The key contacts, the lamp contacts, and the short circuit panels are to be kept free of oil.

8. Key selection is done through either digits or letters. To translate the numbers into letters or back use the following table:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Euskara: Makinaren ezaugarriak eta ezaugarri historikoak. Zifratu rotatibozko makina da. Zifratzeko nahiz deszifratzeko balio du. 1920an hasi zen erabiltzen. Koch holandarra asmatu zuen baina geroago Scherbius Germaniarra hainbat aurrerapen egin zituen. TYPEX edo SYGABA dira beste Enigmaren izen batzuk beste herrialde batzuetan erabiliak. Ingalaterran eta Amerikan hurrenenez hurren. Bere funtzionamendua elektriko-mekanikoa dela esan genezake, teklatuak hizkiak sartzen ziren eta makinaren barruko mekanismoekin ordezkapenak egiten ziren. Beraz ordezkatze metodoa erabiltzen dela esan genezake hizki bat beste batengatik ordezkatzea alegia, (fluxuzko zifratzea). Gatazkak makinarekin. Gerra zibilean erabilitako makina izan zen (bertsio bat). Eta baita gerra handiago batean ere, 2. mundu gerran hain zuzen. Bertan bere zifratzea apurtua izan zen eta horren ondorioz oso garrantzitsu izan ziren mezuak deszifratuak izan ziren. Naziak gerra galtzeko arrazoi handi bat izan zela uste da. Germaniarrek, Enigma makinaren zifratzea apurtu ezina zela pentsatzen zuten baina hori ez zela horrela laster konturatu ziren. Polakoak intertzeptatu zuten Enigma antzeko makina bat germaniarrek Berlinetik Varsoviara bidali zutenean. Ez zen enigma makina bera baina bertsio militarren makinaren ideia bat izateko balio izan zuen. Rejewski Polakoak izan zen makinaren funtzionamendua nola zihoan ikusi zuenak matematikazko eta estatistikazko metodoak erabili eta gero. Hori egiteko, ikusi zuen nola mezu guztietan mezuaren kodea mezuaren hasieran 2 aldiz errepikatzen zela. Horrela zein hizki zeuden enkadenatuak ikusi zuen. Esaterako, QRSQRS mezua zifratu ondoren JXDRFT sortzen zela ikusi zuen. Beraz J eta R, X eta F, D eta T hizkiak enkadenatuak zeudela ikusi zuen. Hori egin ondoren Bomba izeneko makina paralelo bat eraiki zuen. Orain konbinazioak gutxiagoak ziren beraz eskuz egin ahal ziren.
Sanasi 17 noyabr 2003 (according to Exif data)
Manba User:Jszigetvari
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Public domain
This article or image contains materials that originally came from a National Security Agency (NSA) website or publication. It is believed that this information is not classified, and is in the public domain in the United States. See the privacy and security information.

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Enigma machine at NSA

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Enigma mashinasi

tashkil etilgan

17 noyabr 2003

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Fayl tarixi

Faylning biror paytdagi holatini koʻrish uchun tegishli sana/vaqtga bosingiz.

Sana/VaqtMiniaturaOʻlchamlariFoydalanuvchiIzoh
joriy00:12, 2007-yil 28-dekabr00:12, 2007-yil 28-dekabr dagi versiya uchun tasvir450 × 600 (89 KB)GartanenReverted to version as of :, 0 <>
22:29, 2007-yil 27-dekabr22:29, 2007-yil 27-dekabr dagi versiya uchun tasvir1 536 × 2 032 (863 KB)GartanenReverted to version as of 10:57, 15 December 2005
16:48, 2007-yil 22-dekabr16:48, 2007-yil 22-dekabr dagi versiya uchun tasvir450 × 600 (89 KB)Szczepan1990Reverted to version as of 09:36, 30 November 2006
16:37, 2007-yil 22-dekabr16:37, 2007-yil 22-dekabr dagi versiya uchun tasvir226 × 399 (53 KB)Marteshl~commonswiki{{Information |Description=Enigma |Source=self-made |Date= |Author= Marteshl |Permission=ok |other_versions= }}
09:36, 2006-yil 30-noyabr09:36, 2006-yil 30-noyabr dagi versiya uchun tasvir450 × 600 (89 KB)JosuMMakinaren ezaugarriak eta ezaugarri historikoak. Zifratu rotatibozko makina da. Zifratzeko nahiz deszifratzeko balio du. 1920an hasi zen erabiltzen. Koch holandarra asmatu zuen baina geroago Scherbius Germaniarra hainbat aurrerapen egin zituen. TYPEX edo
10:57, 2005-yil 15-dekabr10:57, 2005-yil 15-dekabr dagi versiya uchun tasvir1 536 × 2 032 (863 KB)JszigetvariEgy Enigma kódológép. An Enigma cypher machine. Saját készítésű kép. A photo taken by me.

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