XOR with a Clue

Cryptography 100 pts standard

Twist: XOR key hidden inside the file itself

Story: A careless developer left hints in comments.

Given: Xor.txt

Hints:

Hint 1: XOR is a symmetrical operation. If you XOR the data with the key, you get the original text back.
Hint 2: The key is 2026. Since the payload is longer than 4 characters, the key "repeats" (202620262026...).
Hint 3: Use CyberChef! Start with "From Hex" and then add the "XOR" block.

Difficulty: Easy

↓ Xor.txt

        
          View Hint : Hints

Hints:

Hint 1: XOR is a symmetrical operation. If you XOR the data with the key, you get the original text back.

Hint 2: The key is 2026. Since the payload is longer than 4 characters, the key "repeats" (202620262026...).

Hint 3: Use CyberChef! Start with "From Hex" and then add the "XOR" block.