Archive 2023



Optimizing Firmware Updates: Dasharo Firmware Update Mode for NovaCustom Laptops

Published at November 7, 2023 · Michał Kopeć ·  5 min read

Updating your firmware is an important part of keeping your device secure and reliable. Making this process as easy and reliable as possible is, therefore, a big focus for Dasharo. In this article, we'll dive into the latest feature that makes the update process on NovaCustom laptops a bit easier, more user-friendly, and talk about where we want to go from here....

Categories: firmware



Dasharo Compatible with MSI PRO Z690-A Release v1.1.2

Published at September 8, 2023 · Piotr Król ·  10 min read

Discover the latest Dasharo v1.1.2 release, designed with you in mind. Enjoy the freedom to personalize with the new logo customization feature, and flash open-source firmware safely with Flash BIOS recovery support. Its about making firmware both fun and secure. Dive in to find out more....

Categories: firmware security


Optimizing SPI communication on STM32 MCUs: a comprehensive guide to high-frequency communication

Published at July 28, 2023 · Artur Kowalski ·  22 min read

In this blog post, we delve into the fascinating world of Serial Peripheral Interface (SPI) on STM32 microcontrollers (MCUs). Specifically, we explore how SPI is utilized in TPM chips for communication with PC motherboards. We encounter the challenges of achieving high-frequency SPI communication, especially when operating as a slave, and the specific limitations of STM32L476 MCUs. The article further uncovers the limitations of existing approaches in platforms like Zephyr and STM32 HAL. We then embark on a journey to fix SPI issues, improve DMA performance, and optimize the firmware for high-speed SPI communication. Throughout the blog post, we provide in-depth technical insights and share valuable test results. Join us as we push the boundaries of SPI communication and unlock new possibilities in the world of microcontrollers....

Categories: firmware miscellaneous security


Fobnail Token - example use case

Published at May 19, 2023 · Krystian Hebel ·  11 min read

This phase focused on using Fobnail in a real-life use case, namely using it to access LUKS2 decryption key if and only if the PCR measurements are valid...

Categories: security


Our contribution to coreboot 4.20 release

Published at May 18, 2023 · Piotr Król ·  4 min read

🎉 Celebrating coreboot 4.20 release! 🚀 Kudos to our contributors who have pushed the envelope in firmware security & optimization. Key updates: improved SoC support, TPM security, VT-d DMA protection & more. Check out the blog for all the details....

Categories: firmware


3mdeb Insights: A Look into 3mdeb's Open-Source Contributions

Published at April 27, 2023 · Norbert Kamiński · Piotr Król ·  13 min read

We're thrilled to share our team's summary of open-source contributions from 2021 to the first half of 2023 with you. We've actively worked on enhancing various projects, including coreboot and fwupd. Our involvement has not only boosted the functionality and security of these projects but also equipped us with valuable expertise for our clients. Stay tuned for an insightful blog post diving into our open-source contributions!...

Categories: firmware manufacturing



TrenchBoot Anti Evil Maid for Qubes OS

Published at January 31, 2023 · Michał Żygowski ·  14 min read

Qubes OS Anti Evil Maid (AEM) software heavily depends on the availability of the DRTM technologies to prevent the Evil Maid attacks. However, the project has not evolved much since the beginning of 2018 and froze on the support of TPM 1.2 with Intel TXT in legacy boot mode (BIOS). In the post we show how existing solution can be replaced with TrenchBoot and how one can install it on the Qubes OS. Also the post will also briefly explain how TrenchBoot opens the door for future TPM 2.0 and UEFI support for AEM....

Categories: bootloader firmware hypervisor os-dev security


3mdeb Insights - Winter 2023

Published at January 30, 2023 · Norbert Kamiński ·  5 min read

This blog post will provide an in-depth look at upcoming plans and events for the near future.n the next quarter, we have several exciting events planned for the 3mdeb community. Our events aim to provide a platform for members to connect, share knowledge, and stay informed about the latest developments in the open-source ecosystem....

Categories: firmware miscellaneous


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Implementing UEFI Secure Boot on MPL PIP4x

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

Diving deep into Linux DRM bridge chaining

How TwPM is tested

TrenchBoot Anti Evil Maid - Phase 3



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