HTB - Crypto: AliEnS

Challenge Summary

  • Name: AliEnS
  • Category: Crypto
  • Difficulty: Medium
  • Goal: Recover the hidden flag from a custom AES-ECB oracle.
 

Zero

CTF notes by Zero

Breaking a fresh-key ECB oracle by using same-query block equality and custom deterministic padding leakage.

2026-02-27

Tags

#ctf #htb #cry