Slashdot Mirror
Bletchley Park Codebreaker Honored
Rambo Tribble writes "England has awarded Raymond Roberts, one of the nine cryptanalysts responsible for breaking the Nazi Tunny code machine, (also known by the German designation Lorenz cipher machine) the MBE. Roberts is the last surviving member of the team which cracked the German army's cipher machine functionality, much like others at Bletchley broke the better-known Enigma machine."
Seriously, given that the UK probably would not exist today if not for this man's work, an MBE is too little too late.
The real "Libtards" are the Libertarians!
The reason Turing was persecuted by the state, though, and the reason that a lot of people don't want to recognize him even now, is that he was privately homosexual. For many, that outweighs being key to defeating the Nazis, which is simply a shame.
I am officially gone from
Tunny was broken because of a test message that had to be resent, and was re-encoded with the same key. The cryptographer was bored, and he made some abbreviations in the second encoding (which was manually typed). That put them out of phase, which meant that the message could be broken in crab-fashion. (Guess a word in the cipher text. If you are correct that gives you a little of the key and thus the decryption of the same block of characters in the other text. That, if you are lucky, will reveal another word, which gives more characters in the second text, which yields more in the first, making the entire decrypt fairly straightforward once you get going.) Breaking that message was enough to reveal how the machine worked, it was reverse engineered, and in operational use it was broken by computer basically from the start.
All of this because one operator got sloppy on one test message that wasn't even intrinsically important anyway. But, i think it is fair to say that more crypto is broken by sloppiness than by advanced math (not that the math might not be useful in exploiting the break).
I have had the great pleasure of corresponding with Captain Roberts over the past couple of years. Not only did he and his team make an extraordinary contribution to winning WWW II, he has worked tirelessly since the declassification of the Tunny work to get recognition for the many others who contributed heroically and anonymously. It's quite amazing to talk with someone who had the experience of decrypting Adolph Hitler's personal communications, hours after they were sent. Note that most of the work done by Capt. Roberts and his team was done by hand. Colossus eventually helped with some steps, but not at first, and even then many steps remained to be done manually. At 92 Capt. Roberts remains very engaged and passionate about the work done at Bletchley. If there's a concern, it's that he should have been recognized for his work then, as well as for his recent publicity efforts, and one can make the case that MBE doesn't nearly recognize the magnitude of his contribution. Congratulations, Jerry!