$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
Reset

1001 challenges · browse all techniques

Challenge CTF Weight Category Has
image_compress TSG 2025 – Web files
image_compress_revenge TSG 2025 – Web files
library TSG 2025 – Web files
medicine TSG 2025 – Reverse files
pryspace TSG 2025 – Pwn files
ro_shellbox TSG 2025 – Misc files
roundtrip TSG 2025 – Web files
shadow_spider_network TSG 2025 – Reverse files
A_Dance_of_Add_and_Mul AlpacaHack 2024 – Crypto files
Alpaca_Poll AlpacaHack 2024 – Web files
Broadcasting_NTRU AlpacaHack 2024 – Crypto files
CaaS AlpacaHack 2024 – Web files
Everything_Silver AlpacaHack 2024 – Reverse files
Hat_Trick AlpacaHack 2024 – Crypto files
I2C_Device AlpacaHack 2024 – Reverse files
NNNN AlpacaHack 2024 – Crypto files
Pico_Note_1 AlpacaHack 2024 – Web files
Pico_Note_2 AlpacaHack 2024 – Web files
Rainbow_Sweet_Alchemist AlpacaHack 2024 – Crypto files
SchnorrLCG AlpacaHack 2024 – Crypto files
Simple_Flag_Checker AlpacaHack 2024 – Reverse files
Simple_Login AlpacaHack 2024 – Web files
Treasure_Hunt AlpacaHack 2024 – Web files
XorshiftStream AlpacaHack 2024 – Crypto files
catcpy AlpacaHack 2024 – Pwn files
disconnection AlpacaHack 2024 – Web files
disconnection_revenge AlpacaHack 2024 – Web files
hidden AlpacaHack 2024 – Reverse files
ideabook AlpacaHack 2024 – Pwn files
inbound AlpacaHack 2024 – Pwn files
masking_tape AlpacaHack 2024 – Reverse files
minimal_waf AlpacaHack 2024 – Web files
pytecode AlpacaHack 2024 – Reverse files
qrime AlpacaHack 2024 – Crypto files
subway AlpacaHack 2024 – Reverse files
vcipher AlpacaHack 2024 – Reverse files
wall AlpacaHack 2024 – Pwn files
AAAA CPCTF 2024 – Crypto files
Attack_Attack_Win CPCTF 2024 – Pwn files
CES CPCTF 2024 – Crypto files