Thoughts dereferenced from the scratchpad noise.

Published at December 13, 2024 · Krystian Hebel · 14 min read

Dynamic RAM must be periodically refreshed to maintain its content. JEDEC specifies how often this has to be done to ensure proper operation. In this post, we will see for how long the data can be recovered if it isn't....

Categories: miscellaneous

UEFI Update Capsules for Open Source firmware

Published at December 10, 2024 · Sergii Dmytruk · 12 min read

MSI Z690-A and Z790-P are the first Dasharo firmware releases to support UEFI capsule updates. The additional way to update your firmware aims at making the process more reliable and convenient....

Categories: firmware

Qubes Os Summit 2024

Published at December 9, 2024 · Marta Witkowska · 8 min read

The sixth Qubes OS Summit, hosted in Berlin from September 20–22, 2024, was a dynamic convergence of experts and enthusiasts in the field of secure, open-source computing. Organized by 3mdeb and the Invisible Things Lab, this hybrid event featured live-streamed sessions for remote participants, facilitating global engagement....

Categories: miscellaneous os-dev

Improving measured boot and TPM support in Dasharo

Published at November 28, 2024 · Michał Żygowski · 11 min read

An overview of recent improvements to TPM and measured boot support in open-source firmware, coreboot and Dasharo....

Categories: firmware security

UEFI Secure Booting FreeBSD with Dasharo firmware

Published at November 14, 2024 · Filip Lewiński · 8 min read

This blogpost is a very brief introduction to the UEFI Secure Boot. It focuses on enabling Secure Boot on FreeBSD, on the example of a device running Dasharo firmware....

Categories: firmware security

New Dasharo v0.9.0 Meteor Lake releases

Published at August 7, 2024 · Filip Gołaś · 8 min read

Dasharo v0.9.0 for 14th gen Intel Meteor Lake has just been released bringing numerous new features and improvements. Check out what's new!...

Categories: firmware security

Getting started with Hardkernel ODROID H4+

Published at August 1, 2024 · Michał Żygowski · 14 min read

First steps with new hardware and preparations for coreboot firmware porting. A quick cookbook where to start and what to do when you get your hands on a new platform and not get your hands or board burnt....

Categories: firmware

TrenchBoot Anti Evil Maid - Phase 4

Published at May 17, 2024 · Krystian Hebel · 7 min read

This blog post marks the completion of the next phase of TrenchBoot Anti Evil Maid project for Qubes OS. This time the project focused on AMD platforms, which is something that wasn't possible with the original solution based on tboot....

Categories: bootloader firmware hypervisor os-dev security

Implementing UEFI Secure Boot on MPL PIP4x

Published at April 18, 2024 · Paweł Langowski · 12 min read

This post explains how we tackled the problem of implementing UEFI Secure Boot on MPL's PIP platforms. The process included testing the platform's compatibility with Secure Boot and integrating automatic image signing into an existing Yocto layer....

Categories: firmware security

Dasharo Compatible with MSI PRO Z690-A Release v1.1.3

Published at February 13, 2024 · Michał Żygowski · 11 min read

Discover the latest Dasharo v1.1.3 release bringing new features, many bug fixes, and compatibility with 14th generation Intel Core processors. Dive in to find out more....

Categories: firmware security

Diving deep into Linux DRM bridge chaining

Published at February 12, 2024 · Daniil Klimuk · 14 min read

The post describes the story of implementing bridge-chaining using the DRM/KMS Linux Kernel system on an embedded device with i.mx8mmini SoC...

Categories: firmware miscellaneous

How TwPM is tested

Published at January 31, 2024 · Krystian Hebel · 7 min read

This post shows how we tested simple commands on TwPM, which is our attempt at making TPM more open....

Categories: firmware security

TrenchBoot Anti Evil Maid - Phase 3

Published at January 12, 2024 · Krystian Hebel · 8 min read

This blog post marks completion of next phase of TrenchBoot Anti Evil Maid project for Qubes OS. Even though user experience didn't change too much, the implementation went through a major overhaul....

Categories: bootloader firmware hypervisor os-dev security

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Research of RAM data remanence times

UEFI Update Capsules for Open Source firmware

Qubes Os Summit 2024

Improving measured boot and TPM support in Dasharo

UEFI Secure Booting FreeBSD with Dasharo firmware

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