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IPFS News Link • History

Why didn't the Germans detect that their encryption method Enigma had been broken

• arclein

The Kriegsmarine was the German navy of WWII. The main signal intelligence agency of the Kriegsmarine was the so called B-Dienst (observation service), which was responsible for attacking Allied naval cryptographical systems. The B-Dienst started their work already during the interwar years, with their primary target being the British Royal Navy. The Royal Navy used the following systems at the start of the war:Naval Cypher No1, a 4-figure book used since 1934.