Design Security Features (Encryption) - Indication for existing non-volatile key in the FPGA
Hey,
Is there an indication in Quartus for existing non-volatile key in the FPGA?
1. I programmed epk file, without 'Tamper protection bit', into the FPGA.
2. After I programmed the encrypted JIC file into the flash memory device and powered on, the FPGA didn't work.
3. when I programmed the normal JIC file into the flash memory device and powered on, It worked fine.
In all the above operations, the 'Programmer' tool reported that the programming process was successful.
I'm trying to figure out if programming the epk file was successful, because the 'Programmer' tool let me program the epk file into the FPGA over and over again, and I know that programming process should be one-time.
More details:
- FPGA - Cyclone V - 5CEFA7U19I7N.
- Configuration Scheme - AS QSPI (x4).
- Flash memory device - MT25QL256, Micron.