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Explore the limitations and misconceptions surrounding Trusted Platform Modules (TPMs) in embedded device security through this 39-minute conference talk from the Linux Foundation. Examine why TPMs, despite their growing adoption in Linux ecosystems and features like TPM-backed disk encryption in systemd, may not provide the security level many developers expect in embedded environments. Discover how embedded systems present fundamentally different threat models compared to desktops or servers, and learn where TPMs can effectively contribute to security versus where they fall short. Gain insights into the specific challenges of using TPMs for disk encryption and integrity in embedded contexts, understand the security threats unique to embedded devices, and evaluate compliance requirements such as NIS2 and the EU Cyber Resilience Act. Conclude with an exploration of alternative security approaches, additional TPM usage scenarios, and practical guidance for making informed decisions when designing secure embedded systems.
