bandit → Bandit Level 11
bandit_11/README.md
OverTheWire rot13 tr encoding The password for the next level is stored in the file data.txt, where all lowercase (a-z) and uppercase (A-Z) letters have been rotated by 13 positions

Bandit Level 11

  • data.txt contains the password encoded with ROT13
    • each letter is shifted 13 places in the alphabet.

  • Since the alphabet has 26 letters, applying ROT13 twice gets you back to the original, which means encoding and decoding are the same operation.

  • cat data.txt | tr 'A-Za-z' 'N-ZA-Mn-za-m' decodes it.
    • tr is a character translation tool
      • it swaps characters from the first set to the matching position in the second set.
    • The pattern maps A-M to N-Z and N-Z to A-M (same for lowercase), which is exactly ROT13.

Password

IFukwKGsFW8MOq3IRFqrxE1hxTNEbUPR

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