Qoriq Trust Architecture 2.1 | User Guide [repack]

Unstable voltage rails or clock glitches during boot can trigger false-positive tamper events, moving the device directly into a Non-Secure state. Ensure clean power sequencing during board layout design.

Step 4: Provisioning Fuses (Development vs. Production Mode) qoriq trust architecture 2.1 user guide

This outputs srk_table.bin and also calculates the (displayed on console). Guard that hash with your life—it’s the fingerprint of your root of trust. Unstable voltage rails or clock glitches during boot

Unlike desktop security that logs errors and continues, TA 2.1’s philosophy is detect and destroy . Production Mode) This outputs srk_table

The SNVS block operates independently from the main power rail. If the main processor shuts down or enters a low-power sleep state, the SNVS continues to track security state variables, monitor the real-time clock, and listen for physical tamper alarms via a dedicated battery supply rail. 7. Troubleshooting and Debugging

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.

Ensure that the JTAG debug fuse is blown on production boards to prevent attackers from attaching hardware debuggers to dump system memory.