$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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628 challenges · browse all techniques

Challenge CTF Weight Category Has
kv_messenger openECSC 2025 – Web files
mind_the_gap openECSC 2025 – Crypto files
mvmory openECSC 2025 – Reverse files
nonplanar openECSC 2025 – Reverse files
oci openECSC 2025 – Misc files
phantom_token openECSC 2025 – Crypto files
plfanzen_laden openECSC 2025 – Web files
plfanzen_laden_revenge openECSC 2025 – Web files
polish_bar openECSC 2025 – Web files
polite_email openECSC 2025 – Crypto files
ruby_matcher openECSC 2025 – Misc files
scrambled_randomness openECSC 2025 – Crypto files
secure_snek_reveng openECSC 2025 – Reverse files
steg openECSC 2025 – Misc files
swaped openECSC 2025 – Crypto files
theory_of_elliptic_curves openECSC 2025 – Crypto files
unzip_them_all openECSC 2025 – Reverse files
Memory_dump InterlogicaCTFs 2024 – Reverse files
net InterlogicaCTFs 2024 – Misc files
steg InterlogicaCTFs 2024 – Misc files
Another_Matrix_KE openECSC 2024 round1 – Crypto files
Anti_rev openECSC 2024 round2 – Reverse files
BabyFeistel openECSC 2024 round2 – Crypto files
BabyNotes openECSC 2024 round2 – Web files
Baby_Array.xor openECSC 2024 round3 – Pwn files
Blind_Writer openECSC 2024 round2 – Pwn files
Blind_maze openECSC 2024 round2 – Misc files
CableFish openECSC 2024 round1 – Misc files
Cop openECSC 2024 round3 – Reverse files
Deleted_file openECSC 2024 round3 – Misc files
FPFC openECSC 2024 round2 – Reverse files
Fileshare openECSC 2024 round1 – Web files
Flags_distribution_Inc. openECSC 2024 round1 – Misc files
Fuper_Fibernetic_Interpolator openECSC 2024 round3 – Web files
GoSweeper openECSC 2024 round2 – Web files
Grand_Resort_for_Pwning_Cats openECSC 2024 round3 – Web files
Invention openECSC 2024 round2 – Crypto files
JuniorFeistel openECSC 2024 round3 – Crypto files
LWE2048 openECSC 2024 round3 – Crypto files
LazyDH openECSC 2024 round3 – Crypto files