May 9, 2021
Torchlight 2 LAN multiplayer over OpenVPN —
Playing Torchlight 2/Titan Quest/Grim Dawn in LAN mode over self-hosted OpenVPN
Aug 28, 2020
Google CTF 2020 - AVR writeup —
Timing side channels and interrupt race conditions in AVR
Jul 19, 2020
symfonos 6.1 walkthrough —
Following a subtle chain of unfortunate circumstances
Jun 30, 2019
Google CTF 2019 Quals - flagrom writeup —
Breaking faulty I2C Verilog implementation via 8051 bit-banging
Jul 9, 2017
PoliCTF 2017 - Ham writeup —
Discovering and decoding a hidden BPSK31 transmission
Jun 28, 2017
Trend Micro CTF 2017 Quals - Forensic 300 writeup —
Restoring ransomware-encrypted files from Cuckoo logs
Jun 26, 2017
Trend Micro CTF 2017 Quals - Misc 400 writeup —
DNS packets aren't what they seem
Jun 18, 2017
Google CTF 2017 Quals - RSA CTF Challenge writeup —
Delving into lackluster implementations of PKCS#1 v1.5
Apr 10, 2017
ASIS CTF 2017 Quals - Crows know! writeup —
This time, the task is very simple: after completing an obligatory proof of work (a basic SHA256 bruteforce) and waiting a couple seconds we are presented with a couple of pretty big integers, a and b.…