Enigma machine

العربية: آلة إنجما هي آلة تستخدم لتعمية وفك تعمية الرسائل السرية. ويُطلق اسم آلة إنجما تحديداً على أي آلة من عائلة الآلات الكهروميكانيكية الدوارة التي تستخدم لإنتاج الشيفرة السرية، حيث أن هذه العائلة تشمل أنواعًا متعددة ومختلفة من الطرازات.

Deutsch: Die ENIGMA ist eine Rotor-Schlüsselmaschine, die im Zweiten Weltkrieg im Nachrichtenverkehr des deutschen Militärs verwendet wurde.

English: The Enigma machine was a cipher machine used to encrypt and decrypt secret messages. More precisely, Enigma was a family of related electro-mechanical rotor machines, comprising a variety of different models.

The machine

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  Enigma at CIA museum (high-resolution image)
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  Enigma in use, 1943
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  Enigma in use, 1943
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  Enigma Machine at the Imperial War Museum, London.
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  Enigma Machine at the Imperial War Museum, London.
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  Enigma Machine at Museum in Luzern, Swiss.
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  Enigma Machine at NSA.
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  One of two Enigma machines recovered from U-505. This machine is fitted with an experimental printing unit.
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  Japanese Enigma
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  Enigma machines at the National Cryptologic Museum.
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  Enigma Machine at Museum in Warsaw, Poland.
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  plugboard of an Enigma machine
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  four rotor enigma machine at Bundeswehr Museum Dresden
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  Naval four wheel Enigma M4 machine located at Bletchley Park Museum
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  A naval four wheel Enigma machine located at the Museum fur Kommunikation Frankfurt
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  Enigma Machine at the National Cryptologic Museum, Ft. George G. Meade, Maryland
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  Enigma Uhr at the National Cryptologic Museum 2005
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  Enigma Uhr Zur Beachtung
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  Enigma Uhr Alphabete
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Rotors

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  Rotors
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  The stack of rotors inside an Enigma
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  Close-up of the rotor windows of a four-rotor Naval Enigma machine (M4).
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  An Enigma machine rotor
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  An Enigma machine rotor
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  Reflector (Umkehrwalze) of Enigma
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  Stepping mechanism of Enigma (rotors removed)

Drawings

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  Rotors
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  Rotors exploded
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  ratchet mechanism of a rotor
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Others

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  Cyclometer (1934)
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  enigma codebook
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  Zygalski(perforated) sheets (1934)
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  Enigma logo
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  American version of Turing Bombe
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  Marian Rejewski
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  Marian Rejewski
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  A plaque at Bletchley Park
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  Swiss cipher machine NEMA ('Neue Maschine') with front cover closed
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  Swiss cipher machine NEMA ('Neue Maschine') with front cover opened