Your question is Secure Bootloader Design Approach. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain how you would approach designing a secure bootloader for an embedded device.
Discuss the chain of trust from immutable boot ROM through application startup, firmware authenticity and integrity, key provisioning, anti-rollback protection, secure updates, recovery behavior, and protections against debug-port abuse. Explain how you would test the design and respond if a signing key or firmware image were compromised.
