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All Greek To Me

  • Event: ForeverCTF
  • Problem Type: Crypto
  • Point Value / Difficulty: Easy
  • (Optional) Tools Required / Used:

Steps

Step 1

The flag is encoded with a Caesar cipher, a substitution cipher that replaces each letter with another letter that is x places further down in the alphabet, where we call x the shift.

Step 2

Since there are only 26 possible unique shifts, and 1 is no shift which renders it basically useless, there are only 25 viable shifts. You can try each of these shifts out manually, or you can use an online tool like this to recover the flag.