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Ren's Space

BlogAbout

Hello!

I'm Ren, and welcome to my space! I'm a Computer Science fresh graduate, working as a pentester or red teamer by day, software engineer on the other time! This is where I post my rambles, be it technical, or simply talking about life.

Recent Posts

Thursday, February 12, 2026
Searching Videos From Screenshots
I can finally find those sauce that people on Twitter kept posting the screenshot of!
Sunday, September 21, 2025
A Closer Look at Client Side Hashing
Authentication is hard, really hard!
Saturday, February 8, 2025
CJ2024: Armored Snake
I attempted to reverse engineer an obfuscated PyArmor program.
Tuesday, January 23, 2024
I Wrote A HTML Rendering Library and It Sucks
In an attempt to bring the a feel of modern WebDev to Python, I caused hell
Saturday, October 14, 2023
COMPFEST Attack Defense CTF: Managing 10+ Servers and Deployment
Building the infrastructure and flow of an Attack-Defense CTF