While we're on the topic of lost heroes, it seems appropriate to mention the Biuro Szyfrów (the Polish Cypher Bureau) and in particular Marian Rejewski. By appl

While we're on the topic of lost heroes, it seems appropriate to mention the Biuro Szyfrów (the Polish Cypher Bureau) and in particular Marian Rejewski. By applying permutation group theory he managed to crack the Enigma in 1932. In 1939 this information was handed over to the British and French, allowing Bletchley Park to begin deciphering the Enigma which they had little success with up to this point [1]. The bureau also developed the bomba kryptologiczna (cryptological bomb), a precursor of Bletchley Park's bombe, a device used to expedite the breaking of Enigma codes [2]. [1] http://en.wikipedia.org/wiki/Biuro_Szyfr%C3%B3w http://en.wikipedia.org/wiki/Biuro_Szyfr%C3%B3w [2] http://en.wikipedia.org/wiki/Bombe http://en.wikipedia.org/wiki/Bombe