In this challenge are we to assume that the enigma machine is identical to the one linked?
We're suppose to guess which of the 5 discs are used, which order they were used, and what 3 letter key was used to start the cypher. Correct?
Do we also have to guess at additional "Steckers" (twisted letter pairs?) Or is "AT", and "EN" the only two?
Enigma
The Wikipedia article describes:papa wrote:The linked machine seems to have a strange carry over behavior. When all three rotors are rotated, this takes place in two steps and the second one is rotated twice. Is this a bug in the swf or did I understand something wrong and it is supposed to be like that?
It seems the swf behaves incorrectly when deleting letters, although it doesn't affect this challenge.http://en.wikipedia.org/wiki/Enigma_machine wrote:The second rotor also advanced at the same time as the third rotor, meaning the second rotor can step twice on subsequent key presses—"double stepping"—resulting in a reduced period.
- dangermouse
- Posts: 89
- Joined: Sun Jun 05, 2011 8:14 pm
- Location: deep space computing AG
- Contact:
This is an interesting video on WWII rotors machines:
http://www.khanacademy.org/science/brit ... n-machines by Brit Cruise on Khan Academy.
And these are the slides by R. Banach i used to solve the challenge, also with some interesting historic background:
http://www.cs.man.ac.uk/~banach/COMP614 ... Enigma.pdf
http://www.khanacademy.org/science/brit ... n-machines by Brit Cruise on Khan Academy.
And these are the slides by R. Banach i used to solve the challenge, also with some interesting historic background:
http://www.cs.man.ac.uk/~banach/COMP614 ... Enigma.pdf