$ ctf42

Challenges

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

Challenge CTF Weight Category Has
PQ
#rsa#fermat-factorization#close-primes
 VolgaCTF 2024 Quals 35.91 Crypto files wu 1
QR_Codebook
#ecb#known-plaintext
 VolgaCTF 2021 Quals 32.73 Crypto files wu 1
Chill VolgaCTF 2026 Quals 38.67 Crypto files
Cyber VolgaCTF 2026 Quals 38.67 Crypto files
GFPRNG VolgaCTF 2026 Quals 38.67 Crypto files
Happy_Meal VolgaCTF 2026 Quals 38.67 Crypto files
Broke_Bloke VolgaCTF 2025 Quals 27.14 Crypto files
Broke_Bloke_Revenge VolgaCTF 2025 Quals 27.14 Crypto files
Cockfighting VolgaCTF 2025 Quals 27.14 Crypto files
Field_Rules VolgaCTF 2025 Quals 27.14 Crypto files
Gaussian_Curve VolgaCTF 2025 Quals 27.14 Crypto files
QR VolgaCTF 2024 Quals 35.91 Crypto files
Single_R VolgaCTF 2024 Quals 35.91 Crypto files
Carry VolgaCTF 2021 Quals 32.73 Crypto files
Knock-Knock VolgaCTF 2021 Quals 32.73 Crypto files