Cool_Tools/CyberChef
1
0
Fork 0
mirror of synced 2024-11-17 03:27:13 +01:00
Code Releases Activity

Bombe: add note about rotor step in crib

Browse Source
This commit is contained in:
s2224834 2019-02-09 23:01:52 +00:00
parent 069d4956aa
commit dd9cbbac77
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/core/lib/Bombe.mjs
View File

@ -281,6 +281,14 @@ export class BombeMachine {
* ciphertext. It will check that the crib is sane (length is vaguely sensible and there's no * ciphertext. It will check that the crib is sane (length is vaguely sensible and there's no
* matching characters between crib and ciphertext) but cannot check further - if it's wrong * matching characters between crib and ciphertext) but cannot check further - if it's wrong
* your results will be wrong! * your results will be wrong!
*
* There is also no handling of rotor stepping - if the target Enigma stepped in the middle of
* your crib, you're out of luck. TODO: Allow specifying a step point - this is fairly easy to
* configure on a real Bombe, but we're not clear on whether it was ever actually done for
* real (there would almost certainly have been better ways of attacking in most situations
* than attempting to exhaust options for the stepping point, but in some circumstances, e.g.
* via Banburismus, the stepping point might have been known).
*
* @param {string[]} rotors - list of rotor spec strings (without step points!) * @param {string[]} rotors - list of rotor spec strings (without step points!)
* @param {Object} reflector - Reflector object * @param {Object} reflector - Reflector object
* @param {string} ciphertext - The ciphertext to attack * @param {string} ciphertext - The ciphertext to attack