Secure Boot and Trusted Platform Module (TPM) in Embedded System
Secure Boot Secure Boot is a security feature involving a combination of software and hardware components working together to ensure that only trusted software is loaded and executed during the boot process. The software component of Secure Boot includes the bootloader, which is responsible for loading the operating system and other software components. The bootloader typically performs the digital signature verification process, which ensures that the software being loaded is authentic and has not been tampered with. The hardware component of Secure Boot includes a Root of Trust (RoT), which is a trusted set of hardware components that are used to verify the integrity of the software. The RoT typically consists of a Boot ROM or a Trusted Platform Module (TPM), which is a hardware component that provides cryptographic services and secure storage for keys and other sensitive data. TPMs receive commands and return responses. To take the full benefit of a TPM, you must caref...