ww2

A legendary Soviet spy, Richard Sorge, is famous for conveying the exact date of the German invasion into the Soviet Union, and for letting the command know Japan had no plans of attacking the USSR in the Far East.

Five lessons from the story of the Enigma cryptographic machine which are still relevant.

During WW2 modern cryptography principles were often coupled with ‘amateur’ ciphering methods. Curiously, the latter ones often proved to be equally reliable