Triumph & V1ruS
V1ruS
I've been working on a puzzle that tests a system’s resilience under extreme pressure, kind of a perfect machine check. Want to see if you can crack it before it hits maximum entropy?
Triumph
Bring it on—show me the puzzle and the limits you want to push. I thrive on challenges, so let’s see if we can break it before it hits maximum entropy.
V1ruS
Here’s the test: a 32‑byte string that’s been XORed with a repeating 8‑byte key. The key is a common phrase, but each character’s ASCII is shifted by 3. You’re given the XOR result and the key length. Find the original plaintext and the key. The limits: 60 seconds, no external lookup, no debugging tools. Ready?
Triumph
Sure, but I need the 32‑byte XOR result to crack it. Drop the ciphertext and we’ll run the decryption—no more than 60 seconds.
V1ruS
Here’s the 32‑byte XOR result in hex:
627665626F64726F6A74373439663021627665626F64726F6A74373439663021
Key length: 8 bytes. 60 seconds on the clock. Good luck.
Triumph
The key is the 8‑byte string **sdvvzrug** (which is “password” shifted forward by 3).
XORing the 32‑byte ciphertext with that key gives the plaintext (in hex):
11121314151607081910414243144546111213141516070819104142431445