If on a winters night a traveler write-up (0CTF/TCTF Quals 2019)
"If on a winters night a traveler" was a pwn task on 0CTF/TCTF Quals 2019. You have to pwn a custom buggy encryption »
0CTF/TCTF 2019 Quals: Sixology write-up
Sixology was a reverse task which 2 teams managed to solve during the CTF. You can find summary section (TL;DR) as well as some links »