Writing tagged: hardware
- 2026-04-26
Embedded Security In Practice: Secure Boot, Debug Lockdown, Key Storage
Layered defense for when the attacker holds the hardware: secure boot, debug lockdown, key storage, safe updates, and the basics that catch most attackers.
- 2026-05-10
Embedded Security In Practice: TARA and Lifecycle Plan for the FRDM-MCXN947
A full ISO/SAE 21434 TARA on the FRDM-MCXN947 cast as an ASIL B BCM: threat scenarios, attack paths, risk treatment, and the M2-M8 control roadmap.
- 2026-05-24
Embedded Security In Practice: Secure Boot on FRDM-MCXN947
This post implements ECDSA P-384 secure boot on the FRDM-MCXN947: the boot ROM now refuses any image without a valid signature. Live captures prove TS2 closed.
- 2026-05-31
Embedded Security In Practice: Enabling Authenticated Debug on FRDM-MCXN947
A walk through of closing the TS3 risk: the SWD port ships open. This post builds, verifies, and stages the per-device DAT credential gate for it.
- 2026-07-12
Embedded Security In Practice: Root of Trust and Key Storage on FRDM-MCXN947
M4: using the SRAM PUF and EdgeLock Secure Enclave to make ECU keys device-bound at rest. What this gives you, and what it does not.