$ ctf42

#srand-time-seed CTF challenges

2 CTF challenges using srand-time-seed from 2 CTFs (2019–2025), 2 with writeups. Mostly Pwn (50%) and Reverse (50%).

Pwn · 1 Reverse · 1

Often combined with

#prng-prediction 1 #lcg 1 #bruteforce 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
seed-sPRiNG picoCTF 2019 – Pwn files wu 1
Back_to_the_past PwnMe 2025 Quals 24.95 Reverse files wu 1