$ ctf42

#bruteforce CTF challenges

13 CTF challenges using bruteforce from 10 CTFs (2020–2025), 13 with writeups. Mostly Crypto (54%) and Reverse (31%).

Crypto · 7 Reverse · 4 Misc · 2

Often combined with

#aes 2 #multiprime 1 #residue-recovery 1 #rsa 1 #single-byte-xor 1 #arm-reversing 1 #jit-vm 1 #thread-race 1 #search-pruning 1 #rockyou 1 #custom-hash 1 #xor 1 #repeating-key 1 #crc8 1 #keygen 1

Challenges

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Challenge CTF Weight Category Has
Streamer TSG 2023 – Crypto files wu 3
xorpals DamCTF 2021 24.43 Crypto files wu 3
infinite-free-trial RaRCTF 2021 24.53 Reverse files wu 3
Secret_Sequence TSG 2023 – Misc files wu 2
RITSEC_Hash RITSEC 2021 – Crypto files wu 2
Either_or_Neither_nor RITSEC 2023 – Crypto files wu 1
timemachine rgbCTF 2020 19.74 Misc files wu 1
Back_to_the_past PwnMe 2025 Quals 24.95 Reverse files wu 1
Modulus_RSA CyberSpace 2024 24.83 Crypto files wu 1
highest_power Pwn2Win 2021 83.41 Reverse files wu 1
dht RCTF 2021 – Reverse files wu 1
4aes Defcamp 2023 Quals – Crypto files wu 1
My_Zed PwnMe 2025 Quals 24.95 Crypto files wu 1