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Null Hardware's Latest Blog Posts

Still Hacking #hacking

By: Andrew Steadman | Jun 15, 2022

When last we spoke I had started chipping away at the binary exploitation problems in picoCTF 2018. Two years later: I’m now an ‘Elite Hacker’ on HTB and placed in the Top-10 overall in picoCTF 2022. Here’s how I did it.  Read More.

Hacking the Pandemic Away #hacking

By: Andrew Steadman | Aug 11, 2020

I’ve spent the last couple of months of the pandemic lockdown hacking my way through the PicoCTF 2018 capture the flag challenges - and I’m sharing what I’ve learned. Every single Binary Exploitation challenge has been cracked, including the ones requiring heap exploits. Can you figure out how I did it? TLDR: Jump straight to our PicoCTF 2018 BinExp Guide.  Read More.

Here is a simple fixed-point approximation to sin (and cos) appropriate for embedded systems without dedicated floating-point hardware. It is accurate to within ±1/4096 (0.01% Full-Scale). No lookup-table is required, and portable C code is available.  Read More.