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The QorIQ processor’s Security Engine woke up. It took the firmware image Elias had prepared, hashed it internally, and signed it using the private key stored deep within the secure memory vault. The operation happened entirely within the hardware black box. Not a single bit of the private key was ever exposed to the system bus where the malware could sniff it.

The SEC block handles high-speed cryptographic operations, including RSA signature verification and AES decryption, offloading these tasks from the main CPU cores. D. One-Time Programmable (OTP) Fuses

If the signature is valid, the CPU jumps to the ESBC. If it fails, the system enters a "Soft Fail" or "Hard Fail" state (depending on fuse settings), typically halting execution to prevent attacks. 4. Setting Up the Environment

: The device checks the Intent to Secure (ITS) fuse. If set, the Internal Boot ROM takes control.