Adolf Hitler’s code machine finally meets its WWII nemesis

The machine Adolf Hitler used to send coded messages to his generals met the supercomputer that revealed its secrets on Friday as veterans operatives whose painstaking work helped end World War II watched.

Scientists at Bletchley Park in southern England, the WWII code breaking headquarters, fired up the valves, whirring wheels and spinning tors of the two machines to recreate how German military chiefs sent secret messages and how they were deciphered.

Hitler’s Lorenz machine boasted 1.6 million-billion possible coding combinations thanks to a series of 12 rotors, a million times more complex than the Enigma machine.

The ingenuity of engineer Tommy Flowers, scientists were able to deduce how the machine operated and then build a machine to work out the settings of Lorenz’s rotors.

Colossus is regarded as the world’s first programmable, electronic-digital computer, but was kept secret for decades, depriving its makers of due accolades. It had helped the Allies confirm that Hitler mistakenly believed the D-Day landings would target Calais, which may have shortened the war by two years.

Margaret Bullen, who helped build Colossus, and veterans who fed encrypted German messages into the machine, including Irene Dixon, were also present for the viewing.

‘Impossible task’ It was only decades after the war that Dixon discovered she had been processing the most sensitive of information.

“We found out we were intercepting coded messages sent by Hitler to his generals,” she told AFP.

“Hitler would’ve been furious if he had known, we were decrypting the messages even before his generals were”.

Dixon and other “Wrens” from the women’s branch of the Royal Navy were sworn to secrecy, and even other workers at Bletchley Park were unaware of the existence of the massive computer, which took up a whole room.

“Some of the Wrens did ask why it was so hot (close to the Colossus room), and some used to dry their washing next door,” recalled Dixon.

The main Lorenz cypher machine is on loan from the Norwegian Armed Forces Museum in Oslo, but the special keyboard used to send the message to the rotors is a recent discovery.

Museum researcher John Wetter saw a “telegram machine” for sale on auction site eBay and realised it was actually a Lorenz teleprinter.

He travelled to the southern English town of Southend and found the machine on the floor of a shed, covered “with rubbish”.

“We said ‘Thank you very much, how much was it again ’ She said ‘£9.50’, so we said ‘Here’s a £10 note — keep the change,” he said.

The 10 Colossus machines are believed to have been destroyed in order to maintain secrecy, but late scientist Tony Sale dedicated his life to rebuilding one as part of efforts to protect the Bletchley Park complex from developers.

“I’m glad that my late husband’s dream is being carried forward,” his wife Margaret told AFP.

“The last 25 years, life has been Bletchley Park. Quite a lot of people said it was an impossible task.”