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Wednesday, October 15 • 3:30pm - 4:20pm
Secure and flexible boot with U-Boot Bootloader - Marek Vašut, DENX

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Being able to ensure the Linux-based system we are booting is not corrupted or was not tampered with is becoming a more and more pressing issue. Marek will talk about building an ARM system based on U-Boot bootloader and Linux kernel, where one can be sure that the system will either boot the Linux kernel intact or will refuse to boot in case of an uncorrectable error.

This will be achieved by explaining how to use UBI to prevent corruption of the bootloader and kernel itself in combination with the fitImage kernel image format. The fitImage allows for both cryptographic verification of the kernel image integrity with a strong hash as well as appending an RSA signature, thus allowing to trap both silent corruption due to memory deterioration and tampering attempts.

Finally, Marek will outline the possible pitfalls which can hamper such reliable designs.

avatar for Marek Vasut

Marek Vasut

Software engineer, Self employed
I have been a contractor for multiple companies for many years. My primary responsibility is designing and implementing customer-specific functionality. One important aspect of my work is leveraging the benefits of working inside the mainline Linux, U-Boot and OE / Yocto Project... Read More →

Wednesday October 15, 2014 3:30pm - 4:20pm CEST
Room 26

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