I did a thing at Harekaze 2018

I participated in DKHOS alongside bloodlust (formerly yubitsec) this year but this post is not about that. While we were waiting for DKHOS to start at midnight, we decided to warm up with another CTF that was going on at the time. That CTF was Harekaze 2018.

I did a thing at TU CTF 2017

It was called “The Neverending Crypto”. I don’t remember what difficulty level it was listed at, probably the lowest :) Here is how it went.

You are presented with an address and a port number. When you connect, you are asked to enter a string. The string you entered is encrypted and sent back to you. After a few tries, I realize it’s encrypted with a Caesar cipher.