#modular-arithmetic CTF challenges

5 CTF challenges using modular-arithmetic from 5 CTFs (2019–2026), 5 with writeups. Mostly Crypto (60%) and Misc (20%).

Crypto · 3 Misc · 1 Reverse · 1

Often combined with

#xor 1 #linear-congruence-recovery 1 #custom-hash-collision 1 #multiplicative-hash 1 #crt 1 #mersenne-modulus 1 #lattice 1 #reversing 1

Challenges

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