THE TICKET
Brief
A short key was repeated across an intercepted ticket. The kitchen format always begins with ORDER:. Recover the key and decrypt the complete message.
Objective
Enter the repeating ASCII key to expose the practice flag in the plaintext.
- Cipher
- repeating-key XOR
- Known prefix
- ORDER:
- Encoding
- hex bytes
021b0a111f736e24242a25213d693b27283a6e64352b3b262a2c3c2f20202020123b2b2428283a2730
Enter the recovered ASCII key.
TEAR-OFF CLUES
Hints
No hints opened. This is not scored.
FINAL CHECK
SHA-256 / LOCALStamp the flag.
The answer pass is waiting.
Validation happens entirely on this device. No answer or activity is transmitted.