#hkdf CTF challenges

2 CTF challenges using hkdf from 2 CTFs (2024–2026), 1 with writeups. Mostly Reverse (50%) and Crypto (50%).

Reverse · 1 Crypto · 1

Often combined with

#aes-ctr 1 #apple-encrypted-archive 1 #aes-gcm 1 #rsa-crt-fault 1 #hash-length-extension 1 #base65536 1

Challenges

Filter and sort these in the challenge browser →