$ ctf42

Challenges

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

28 challenges · browse all techniques

Challenge CTF Weight Category Has
Merkurated GoogleCTF 2025 – Crypto files
Underhanded GoogleCTF 2025 – Crypto files
filtermaze GoogleCTF 2025 – Crypto files
numerology GoogleCTF 2025 – Crypto files
sphinx GoogleCTF 2025 – Crypto files
Blinders GoogleCTF 2024 – Crypto files
IDEA GoogleCTF 2024 – Crypto files
McEliece GoogleCTF 2024 – Crypto files
OTP GoogleCTF 2024 – Crypto files
ZKPOK GoogleCTF 2024 – Crypto files
desfunctional GoogleCTF 2024 – Crypto files
Cursved GoogleCTF 2023 – Crypto files
Least_Common_Genominator GoogleCTF 2023 – Crypto files
MHK2 GoogleCTF 2023 – Crypto files
Primes GoogleCTF 2023 – Crypto files
ZIP GoogleCTF 2023 – Crypto files
myTLS GoogleCTF 2023 – Crypto files
Custom_Protocol GoogleCTF 2022 – Crypto files
Cycling GoogleCTF 2022 – Crypto files
Electric_Mayhem_CLS GoogleCTF 2022 – Crypto files
Electric_Mayhem_PQC GoogleCTF 2022 – Crypto files
Enigma GoogleCTF 2022 – Crypto files
Maybe_Someday GoogleCTF 2022 – Crypto files
H1 GoogleCTF 2021 – Crypto files
pythia GoogleCTF 2021 – Crypto files
story GoogleCTF 2021 – Crypto files
tiramisu GoogleCTF 2021 – Crypto files
tonality GoogleCTF 2021 – Crypto files