Rotor machine
Videos
In cryptography, a rotor machine is an electro-mechanical stream cipher device used for encrypting and decrypting messages. Rotor machines were the cryptographic state-of-the-art for much of the 20th
40-point rotors from a machine made by Tatjana van Vark
A German Enigma machine
The rotor stack from an Enigma rotor machine. The rotors of this machine contain 26 contacts.
Typex was a printing rotor machine used by the United Kingdom and its Commonwealth, and was based on the Enigma patents.
Enigma machine
Videos
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany du
Rotor machine
…cryptographic state-of-the-art for much of the 20th century; they were in widespread use from the 1920s to the 1970s. The most famous example is the German Enigma machine, the output of which was deciphered by the Allies during World War II, producing intelligence code-named Ultra. The primary component of a rotor machine…
Military Model Enigma I, in use from 1930
A memorial in Bydgoszcz, Poland, to Marian Rejewski, the mathematician who, in 1932, first broke Enigma and, in July 1939, helped educate the French and British about Polish methods of Enigma decryption
Enigma in use, 1943
Enigma rotor assembly. In the Enigma I, three movable rotors are sandwiched between two fixed wheels: the entry wheel, on the right, and the reflector on the left.