The breaking of Germany's top-secret Enigma Code at Bletchley Park in the United Kingdom was one of World War II's biggest secrets, alongside the construction of the atomic bombs. Some historians ...

The files include operating instructions for the SG-41, encryption rules and key tables used during the closing weeks of the war ...

The story of breaking the unbreakable German Enigma Code by Alan Turing during WWII. Narrated by Keith Morrison of "Dateline," the breaking of Germany's top-secret Enigma Code at Bletchley Park in the ...

Some historians estimate that the breaking of Germany's Enigma Code at Bletchley Park shortened the duration of World War II by two years and may have saved 14 million lives; narrator Keith Morrison.