Flaw in the Enigma Code - Numberphile
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Published 2013-01-14
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First video explaining Enigma: • 158,962,555,217,826,360,000 (Enigma M...
Extra footage: • Video
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Periodic Videos: youtube.com/periodicvideos
This video features Dr James Grime discussing Enigma, the Bombe and Alan Turing.
James' "day job" is touring with the Enigma machine - he could even visit you - see more at enigma.maths.org/content/project-officer
The maths of breaking the Enigma by James Grime enigma.maths.org/content/sites/enigma.maths.org/fi…
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All Comments (21)
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The fact that the messages were in German was top level encryption in itself.
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I love how the germans and british built these complex encryption machines, but the US just plopped two Navajo indians on two ends of a radio line and no one could figure out what they were saying because no one could speak Navajo, and the only way to get someone who could speak Navajo would be to kidnap a Navajo indian, lol
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"The Germans sent a weather report. It was the same every day." -An Englishman.
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I've invented an improvement on the Type X machine where a letter ALWAYS becomes itself! ;-)
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How dare you make me enjoy Maths.
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It's so sad what happened to Alan Turing after the war.
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The British should have called it the X-Box instead of the X-Machine, they would have made a fortune.
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My mom worked in the Weather office at bletchley park. One of the keys to successful code braking was nothing to to with codes or math but hard work and filing. The ladies endlessly filled out card's , cross-referencing every operator . This allowed them to get a feel for operators who would say use there mom's name each day as a test message and give them a starting point.
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Welp, the Enigma had a little flaw, but the worst flaw was made by te german by ending each message with the word Hitler...
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Even considering the flaw of the Enigma, it is an incredible machine even to this day. It was probably one of the most innovative machines of that time.
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This has to be one of the simplest ways I’ve seen something so complex being explained. Great video.
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As used in practice, the Enigma encryption was broken from 1932 by cryptanalytic attacks from the Polish Cipher Bureau, which passed its techniques to their French and British allies in 1939. Subsequently, a dedicated decryption centre was established by the United Kingdom at Bletchley Park as part of the Ultra program for the rest of the war.
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Additional weakness is the Germans have very long words, which makes it easier to guess if the word fits.
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It's still a bit surprising that the engineers who developed the Enigma, a very sophisticated bit of cryptology, didn't see the flaw of not allowing a letter to represent itself, which seems pretty obvious in hindsight. But I guess people do make mistakes. Thanks, James, for this very clear explanation. Lunch is on me if you're ever in Vienna, Hitler's favorite city.
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Marian Rejewski, Jerzy Różycki i Henryk Zygalski, thank you guys for breaking the enigma code in 1932
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The poor Polish guys who really broke the code are completely forgotten. Sad.
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Why sending a weather report encrypted in the first place. Fun fact: After the War the Britons sold Enigma machines to other countries, without telling them that they could decrypt it
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This episode is the most important episode of the numberphile series. And they almost omitted it. They made this episode by accident due to popular comments for another video!
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"The inner machinations of my mind are an enigma" ~ alan turing
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Polish military intelligence broke the enigma initially, Turing automated it, he and others broke the updated versions
