$ ctf42

#multi-prime CTF challenges

2 CTF challenges using multi-prime from 1 CTF (2025), 2 with writeups.

Crypto · 2

Often combined with

#rsa 2

Challenges

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Challenge CTF Weight Category Has
symmetric UIUCTF 2025 – Crypto files wu 1
too_many_primes UIUCTF 2025 – Crypto files wu 1