XOR

PFFUQYTUONPSK5LAMNDXGJ35ER4CM5C7ORETY3A=

Flag Format: CIT{example_flag}

by ronnie

Ah another guessy crypto challenge. The challenge gives us a Base32 string because all the string is uppercase.

The step to solve this challenge:

• Decode the Base32 string
• Use dCode Cipher Identifier to identify the cipher used. The result is a ROT47 cipher.
• Decode the string using ROT47 cipher. The result is a Base64 string.
• Decode the Base64 string. The result is a gibberish string.
• Find the pattern in the gibberish string use XOR with the flag format CIT{. It will reveal the key used to XOR the string, which is duck.
• Use the key to XOR the gibberish string.

Link to CyberChef.