$ ctf42

#aes-cbc CTF challenges

8 CTF challenges using aes-cbc from 8 CTFs (2021–2026), 8 with writeups. Mostly Crypto (75%) and Misc (25%).

Crypto · 6 Misc · 2

Often combined with

#bit-flipping 2 #padding-oracle 2 #partial-key-bruteforce 1 #iv-recovery 1 #bit-flipping-attack 1 #marshal-bytecode 1 #malware-c2 1 #pyinstaller 1 #numpy-mt19937 1 #seed-bruteforce 1 #legendre-symbol 1 #oblivious-transfer 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
ot_or_not_ot zer0pts 2021 24.56 Crypto files wu 2
keybase Crypto 2021 36.00 Misc files wu 2
What_the_Flip DawgCTF 2021 23.29 Crypto files wu 2
Tsukis_Rhythm_Game R3CTF 2026 35.95 Misc files wu 1
ComicallyBadCrypto PatriotCTF 2022 24.52 Crypto files wu 1
PADGROUNDS TFC 2024 – Crypto files wu 1
import_numpy_as_MT Zh3r0 2021 – Crypto files src wu 1
Blocked1 WolvCTF 2024 35.25 Crypto files wu 1