It was high-tech encryption for an important period of time in the mid-1940s, so perhaps you can forgive us our obsession with the Enigma machine. But did you know that you can make your very own ...
(SSPL/Getty Images) Peter Westcombe, founder of the Bletchley Park Trust, explains in detail how the Enigma machine works and how its codes were broken by the code-breakers at Bletchley Park.