How Hardware Roots of Trust (HRoTs) are being used to protect these systems with a security foundation.
Hardware is at the root of the trust chain. Software runs on chipsets in every system meaning that if the hardware itself is not secure the most advanced software-level defenses can still be circumvented. However, it is important to emphasize that analyzing hardware in isolation also does not guarantee system-level security. Composing different parts of a system together can result in vulnerabilities due to incorrect assumptions made about the larger system when analyzing the security of the individual components. If there are any broken security links in the chain between hardware, boot code, firmware, operating system, and to other layers, then there may be system-wide security vulnerabilities. These system security concerns multiply as hardware is becoming more diverse, complex, and customized to provide the highest performance and flexibility for their end applications.
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