Browse Items (8 total)

The M-209 was a cipher machine invented by Boris Hagelin or AB Cryptoteknik at the beginning of WWII. As a pin-and-lug cipher machine, it did not require electricity. During the war, German cryptanalysts called the machine "AM-1" for "American…

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SIGABA was an electro-mechanical cipher machine created in the late 1930s by the US Army and Navy. It was considered an impressive cryptomachine in that time period to the degree that it was used throughout WWII and into the 1950s.

By the end of…

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The WWII Pigeon Cipher describes a coded message found on the remains of a carrier pigeon discovered in 1982. This message was sent to the curator of the Pigeons at War exhibit at Bletchly Park, however he found it impossible to crack.

In 2012,…

The T-52 G-Schreiber was developed around 1930 by Siemens & Halske. It was used by the Germans in WWII in conjunction with the Enigma and Lorenz. Intercepting messages that were in-depth enough to decipher was difficult for Allied codebreakers…

The TypeX was an electromechanical cipher machine used by the British during WWII. It was devloped by Wing Commander O.G.W. Lywood, with the first production batch delivered to the RAF in 1937. As a British variant of the Enigma, versions of it came…

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The Lorenz cipher machine was developed by Lorenz and used in WWII by the German Army High Command. Hilter used it to communicate with his generals. This cipher machine was dubbed "TUNNY" by British codebreakers at Bletchly Park. In August 1941, Bill…

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PURPLE was a Japanese cipher machine used during WWII and based off the Enigma's rotor technology. While it was developed in 1937 with four rotors (compared to the Enigma's three), it was broken only a few years later in 1940 without being seen by…

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The Enigma was an electromechanical cipher machine used by Germany in WWII. It came in the form of a typewriter and was adopted by the German Army, Air Force, and Navy to secure communications.

In 1939, Alan Turing broke the cipher and developed…

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