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Introduce secure monitor #4681

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TychoVrahe opened this issue Feb 26, 2025 · 0 comments

Milestone

MCU preparation f...

Contributor

TychoVrahe commented Feb 26, 2025

Secure monitor should be a separate build, embedded into firmware like kernel.

Secure monitor should contain the most elementary security related features:

storage
communication with secure elements
bootloader updates
kernel&fw integrity checks
some permission checks

This part of code will run in secure+privileged mode.

Secure monitor should always be guaranteed to be implemented by trezor, therefore, we need to upgrade bootloader to support this.

TychoVrahe added this to the MCU preparation for fw modulararization milestone

TychoVrahe added this to Firmware

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