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  2. German code breaking in World War II - Wikipedia

    en.wikipedia.org/wiki/German_code_breaking_in...

    In general, however, German performance in code breaking was weak due to the fragmentation of responsibility and specialized personnel. [ citation needed ] The Navy's B-Dienst was an exception to the rule, although its successes largely ended when the Allies began using more sophisticated encryption methods by 1943.

  3. Enigma machine - Wikipedia

    en.wikipedia.org/wiki/Enigma_machine

    It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine was considered so secure that it was used to encipher the most top-secret messages. [1] The Enigma has an electromechanical rotor mechanism that scrambles the 26 letters of the alphabet. In typical use, one person enters ...

  4. World War II cryptography - Wikipedia

    en.wikipedia.org/wiki/World_War_II_cryptography

    Cryptography was used extensively during World War II because of the importance of radio communication and the ease of radio interception. The nations involved fielded a plethora of code and cipher systems, many of the latter using rotor machines. As a result, the theoretical and practical aspects of cryptanalysis, or codebreaking, were much ...

  5. List of Axis operational codenames in the European Theatre

    en.wikipedia.org/wiki/List_of_Axis_operational...

    The list of Axis named operations in the European Theatre represents those military operations that received a codename, predominantly from the Wehrmacht commands. It does not represent all operations that were carried out by the Axis powers, or their allies in the European Theatre during the Second World War.

  6. Cryptanalysis of the Enigma - Wikipedia

    en.wikipedia.org/wiki/Cryptanalysis_of_the_Enigma

    The British read unsteckered Enigma messages sent during the Spanish Civil War, [15] and also some Italian naval traffic enciphered early in World War II. The strength of the security of the ciphers that were produced by the Enigma machine was a product of the large numbers associated with the scrambling process.

  7. List of World War II military operations - Wikipedia

    en.wikipedia.org/wiki/List_of_World_War_II...

    Dubbed "Artus" by German Foreign Ministry. See IRA Abwehr World War II for all IRA Abwehr involvement. Karneval (1945) – airdrop of agents near Brussels and Waal; Mosul (1944) – air drop of agents and supplies near Mosul; Pastorius (1942) – separate landings of German agents on the US east coast with objective of industrial sabotage.

  8. German radio intelligence operations during World War II

    en.wikipedia.org/wiki/German_radio_intelligence...

    The German Radio Intelligence Operation were signals intelligence operations that were undertaken by German Axis forces in Europe during World War II.In keeping with German signals practice since 1942, the term "communication intelligence" (German: Nachrichtenaufklärung) had been used when intercept units were assigned to observe both enemy "radio and wire" communication.

  9. German Army cryptographic systems of World War II - Wikipedia

    en.wikipedia.org/wiki/German_Army_cryptographic...

    The Barbara Code (German: Barbaraschlüssel) consisting of figure cards for encoding artillery meteorological reports, e.g. weather constants like wind velocity at various heights, 100m, 200m, for Army and anti-aircraft units. Walter Fricke considered this code, a terrible system. It employed an additive with as many as 100 messages in depth.