Thoughts dereferenced from the scratchpad noise.

Latest posts


KGPE-D16 open-source firmware status

Published at February 3, 2022 · Michał Żygowski ·  6 min read

This post covers the struggles and efforts behind the revival of KGPE-D16. Something that community was waiting for a long time. With Dasharo firmware the platform obtained a new life and sees a new daylight with more security features and improvements....

Categories: firmware security

Porting EDK II to an old Allwinner A13 tablet

Published at January 18, 2022 · Artur Kowalski ·  7 min read

Most ARM SoC's run U-Boot or some custom bootloader. That was the case with Allwinner SoC's, until I started porting EDK II to my A13 tablet. In this post, I will tell you about the current UEFI support status on Allwinner SoC's, my future plans, and how to test UEFI on a compatible device...

Categories: firmware manufacturing

Enabling Secure Boot on RockChip SoCs

Published at December 3, 2021 · Artur Kowalski ·  9 min read

RockChip Secure Boot is an essential security feature that helps tablet, PC, streaming media TV box, and IoT solution vendors secure their devices against malware infecting the firmware. In the following post, we will tell a story about enabling Secure Boot on the RK32xx family, but the lesson learned can be used on other models...

Categories: firmware security

Dasharo for Dell OptiPlex 7010 / 9010

Published at November 26, 2021 · Michał Żygowski ·  8 min read

Open source firmware may be hundreds of times better than the proprietary one. On the example of Dell OptiPlex 7010 / 9010 we will show you the advantages of Dasharo firmware on this machine....

Categories: firmware

First impression on Nezha RISC-V SBC

Published at November 19, 2021 · Cezary Sobczak ·  9 min read

Nezha is a AIoT development board customized by AWOL based on Allwinner's D1 chip. It is the world's first mass-produced development board that supports 64bit RISC-V instruction set and Linux system....

Categories: firmware iot os-dev

Fobnail vs other boot security projects

Published at October 28, 2021 · Michał Żygowski ·  11 min read

Have you ever thought about securing the boot process of your computer? No? This post will compare the available open source boot process hardening projects and explain the importance of signing and protection the software/operating system you launch. You will also get to know how the boot process may be secured even further and with the incoming Fobnail security token....

Categories: firmware security

fTPM vs dTPM

Published at October 8, 2021 · Michał Kopeć ·  5 min read

An introduction to TPMs. Let's explore the differences between common implementations of TPMs and how they might matter to you....

Categories: security