rev 6/27/2026
A LICENSE??? On a PS1???!!
Reverse engineering a custom PS1/OpenBIOS license check, from DuckStation debugging to HMAC-SHA256 license generation and loader patching.
CTF Writeups
security challenges & elegant solutions
osint 2/21/2026
Eye on the Sky
Another interesting challenge solved! Click to see the complete solution.
Season 9 12/9/2025
MonitorsFour
Another interesting challenge solved! Click to see the complete solution.
rev 9/28/2025
Warp
Another interesting challenge solved! Click to see the complete solution.