HTB - Crypto: Twisted Entanglement

Challenge Summary

  • Name: Twisted Entanglement
  • Category: Crypto
  • Difficulty: Medium
  • Goal: Recover the server private key and decrypt the encrypted flag.
 

Zero

CTF notes by Zero

Recovering a bounded ECC private key via invalid-curve small-subgroup leakage, then decrypting the quantum-derived AES key.

2026-02-27

Tags

#ctf #htb #cry