$ ctf42

Challenges

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

23 challenges · browse all techniques

Challenge CTF Weight Category Has
Blocked1
#aes-cbc#bit-flipping
 WolvCTF 2024 35.25 Crypto files wu 1
Blocked2
#aes-ecb#known-plaintext
 WolvCTF 2024 35.25 Crypto files wu 1
Limited_1
#prng-seed-bruteforce#mt19937
 WolvCTF 2024 35.25 Crypto files wu 3
Limited_2
#prng-seed-bruteforce#time-based-seed
 WolvCTF 2024 35.25 Crypto files wu 1
TagSeries1
#ecb#mac-forgery
 WolvCTF 2024 35.25 Crypto files wu 2
TagSeries3
#hash-length-extension#sha1
 WolvCTF 2024 35.25 Crypto files wu 1
Z2kDH
#diffie-hellman#discrete-log#2-adic
 WolvCTF 2023 24.33 Crypto files wu 1
keyexchange
#diffie-hellman#chosen-exponent
 WolvCTF 2023 24.33 Crypto files wu 2
TagSeries2 WolvCTF 2024 35.25 Crypto files wu 2
ECB++ WolvCTF 2025 47.25 Crypto files
EtTuCaesar WolvCTF 2025 47.25 Crypto files
KryptosSystem WolvCTF 2025 47.25 Crypto files
OverAndOver WolvCTF 2025 47.25 Crypto files
ShiftHappens WolvCTF 2025 47.25 Crypto files
TwoTimePad WolvCTF 2024 35.25 Crypto files
yORs_Truly_heart WolvCTF 2024 35.25 Crypto files
DownUnder WolvCTF 2023 24.33 Crypto files
Galois-t_is_this WolvCTF 2023 24.33 Crypto files
AliceBobEve WolvCTF 2022 – Crypto files
CPA-SecureDiffie–Hellman WolvCTF 2022 – Crypto files
EAV-SecureDiffie–Hellman WolvCTF 2022 – Crypto files
MrJohnsonBank WolvCTF 2022 – Crypto files
RSAFrustration WolvCTF 2022 – Crypto files