Dilly Knox Biography

Breaks a modified commercial Enigma system used by forces supporting Franco in the Spanish Civil War.

Takes his Enigma team to Bletchley Park during the GC&CS wartime rehearsal.

Attends the January Paris meeting and assesses the allied position against military Enigma.

Receives a detailed explanation of the Polish solution to military Enigma at Pyry.

The first operational break into Enigma when the team working under Dilly Knox, with the mathematicians John Jeffreys, Peter Twinn and Alan Turing, unravelled the German Army administrative key that became known at Bletchley Park as The Green, encouraged by this success, the codebreakers later crack the Red key used by the Luftwaffe

The first operational break into Enigma when the team working under Dilly Knox, with the mathematicians John Jeffreys, Peter Twinn and Alan Turing, unravelled the German Army administrative key that became known at Bletchley Park as The Green, encouraged by this success, the codebreakers later crack the Red key used by the Luftwaffe

Leads cryptanalysis of Italian naval Enigma traffic that contributes intelligence before Cape Matapan.