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Enigma-M4
The Enigma-M4 (also called ''Schlüssel'' M, more precisely ''Schlüssel'' M Form M4) is a rotor cipher machine, rotor key machine that was used for encrypted communication by the German Kriegsmarine during Second World War, World War II from October 1941. In contrast to the previously used Enigma-M3 and the Enigma I and the Enigma-G used by the German Secret services, the Enigma-M4 is characterized by ''four'' rollers (except for the entry roller and the reverse roller). This makes its encryption cryptography, cryptographic significantly stronger than that of the other Enigma variants with only ''three'' rotors and therefore could not be broken by the Allies for a long time. Previous history All parts of the German Wehrmacht used the rotor cipher machine to encrypt their secret messages. Enigma (machine), Enigma. However, different models were used. While the army and air force used the Enigma I almost exclusively, there were different model variants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enigma Machine
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 during World War II, in all branches of the Wehrmacht, German military. The Enigma machine was considered so secure that it was used to encipher the most top-secret messages. The Enigma has an electromechanical Rotor machine, rotor mechanism that scrambles the 26 letters of the alphabet. In typical use, one person enters text on the Enigma's keyboard and another person writes down which of the 26 lights above the keyboard illuminated at each key press. If plaintext is entered, the illuminated letters are the ciphertext. Entering ciphertext transforms it back into readable plaintext. The rotor mechanism changes the electrical connections between the keys and the lights with each keypress. The security of the system depends on machine settings that were generally changed daily, based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
