$ ctf42

#brute-force CTF challenges

11 CTF challenges using brute-force from 11 CTFs (2019–2026), 11 with writeups. Mostly Crypto (45%) and Reverse (36%).

Crypto · 5 Reverse · 4 Web · 1 Misc · 1

Often combined with

#affine-cipher 1 #finite-field 1 #xor 1 #side-channel 1 #befunge 1 #quantum-circuit-reversal 1 #gdb-scripting 1 #input-constraint-cracking 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
Silk_road_I ASIS 2019 Quals 61.07 Misc files wu 2
baby-baby-rsa HSCTF 2022 – Crypto files wu 2
mfine VULNCON 2021 – Crypto files wu 2
Exclusive WORMCON 2021 – Crypto files wu 1
two_wrongs corCTF 2024 55.00 Crypto files wu 1
FunctionalCPP vsCTF 2022 23.32 Reverse files wu 1
concord VuwCTF 2026 25.00 Crypto files wu 1
Cube_Hash Hack.lu 2023 94.73 Reverse files wu 1
pay-to-win TJCTF 2023 – Web files wu 1
Time_Machine FwordCTF 2021 24.42 Reverse files wu 1
befudged_up WolvCTF 2024 35.25 Reverse files wu 1