$ ctf42

#seed-bruteforce CTF challenges

3 CTF challenges using seed-bruteforce from 3 CTFs (2021–2023), 3 with writeups. Mostly Crypto (67%) and Misc (33%).

Crypto · 2 Misc · 1

Often combined with

#known-plaintext 1 #lcg-keystream 1 #numpy-mt19937 1 #aes-cbc 1 #rsa 1 #signature-forgery 1 #weak-prng 1

Challenges

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Challenge CTF Weight Category Has
signme zer0pts 2021 24.56 Crypto files wu 1
import_numpy_as_MT Zh3r0 2021 – Crypto files src wu 1
Blue_Office Crypto 2023 59.60 Misc files wu 1