IDEA is a challenge written by @0xdeuterium. He even provided me the paper to refer, my only contribution to the challenge is to optimize the original solution so that we don’t need 65K-ish oracle calls. Challenge Summary We have a new idea about a cipher which we think may provide pretty good privacy. So bruce for impact as we may patent our new proposed encryption standard. nc idea.2024.ctfcompetition.com 1337| Posts on Mystify
ZKPOK is a challenge I made while learning Zero Knowledge Proofs on zk-learning.org. I was watching the first lecture video, I came across with the interactive proof for quadratic residues at 20:00. This made me ponder - it should be easy to apply Fiat-Shamir transform to make this non-interactive. Let’s also use MD5 so that it could be vulnerable. Hours later, this challenge appeared without a proper solve script. Surprisingly, the challenge ended up having three solves, which makes this t...| Posts on Mystify