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Breaking the Enigma: what if Turing had Python?
- 1. What if Turing had Python? BREAKING THE ENIGMA
- 2. ¡HOLA! MARIA CAMILA REMOLINA GUTIÉRREZ ● I ❤ the universe and computers ● Currently a backend developer at S4N ● I sculpt ceramics in my spare time ● Crush on cryptography + security mariacamilarg.me/
- 6. WWII Enigma Machine 1900BC 1939-1945 2020 AAWSNPNLKLSTCXW KJDFGSJRFPVLDKF...
- 11. oneflaw!
- 12. oneflaw! A letter can never be encrypted to itself!
- 14. Thebombe!
- 21. FIND ALLPOSSIBLETRANSLATIONSOFTHATCRIB ATTACKATDAWN AAWSNPNLKLSTCXWKJDFGSJRFPVLDKFCSD... possible CRIB - CIPHER pair
- 24. FIND ALLPOSSIBLETRANSLATIONSOFTHATCRIB ATTACKATDAWN AAWSNPNLKLSTCXWKJDFGSJRFPVLDKFCSD... possible CRIB - CIPHER pair
- 29. CREATE A MENUFOREACHCRIB-CIPHERPAIR Select the graph with most loops & nodes
- 31. RUNNING BOMBE
- 32. Mathematicaldeductions Take some initial configuration of rotors Guess plugboard connection Deduce next connection using map IF inconsistency => ALL PREVIOUS PLUGBOARD GUESSES ARE WRONG!
- 34. BOMBEMACHINE
- 35. ANALYSIS RESULTS
- 41. STILLA LOTOFHUMANEFFORT ● Try different cribs ● Find all crib-cipher pairs ● Create menus ● Find best menu ● Run multiple bombes ● Analyze final decryptions
- 42. + Et al.
- 45. BUILD ENIGMA INITIAL Configuration PROCESSING CLEARINPUT TEXT CIPHEREDOUTPUT ~0.6ms Brute force attack?
- 46. BUILD ENIGMA INITIAL Configuration PROCESSING CLEARINPUT TEXT CIPHEREDOUTPUT ~0.6ms Brute force attack?
- 47. FINDING A CRIB AAWSNPNLKLSTCXWKJDFGSJRFPVLDKFCSDAS LKFDJGSUIERGBVYDCYBWEKHGFGIUBHFBNKV JZFDZNBWERJOBJZJFBFJRLBJSZHSUKIERKZ KJRYGZFHBVUBUSEYAOPQZMALSWURNC... - ATTACKATDAWN - WEATHERREPORT - DATEOFARRIVAL - NOTHINGTOREPORT - ... msg: possibilities:
- 48. FINDING A CRIB
- 52. FINDING A MENU
- 53. FINDING A MENU dict for direct access
- 54. FINDING A MENU DSF to find cycles
- 56. RUNNING BOMBE
- 57. RUNNING BOMBE
- 58. RUNNING BOMBE multiple enigmas at a time (multithreading)
- 59. RUNNING BOMBE math deductions to remove possibilities
- 60. RUNNING BOMBE add all candidates: all but one are false positives
- 62. ANALIZE RESULT
- 63. ANALIZE REsULT
- 67. LET’SCOMPARE! Finding a crib: ~20 m ~3 ms Finding a menu: ~1 h ~25 ms Running the bombe: ~2-4 h ~5 m Analyzing results: ~30 m ~2 m
- 68. T.I.L
- 69. TODAYiLEARNED ● Crypto makes technology evolve ● All it takes is a different way of thinking ● Design flaws become exploits
- 70. SURPRISEBONUS
- 71. Let’susepython ● What if we do an spectrogram of it? Credits: https://github.com/sam1902/SpectroGen/