AN 759: Using Secure Boot in Intel® Arria® 10 SoC Devices

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ID 683060
Date 3/29/2021
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What FPGA locations are available for AES key storage?

Within the FPGA, you can store the public (root) key in key registers located in:
  • User fuses (non-volatile memory)
  • Battery-backed RAM (volatile memory) within the FPGA

The contents of the volatile key registers are retained between power-cycles with battery power. Non-volatile key registers are fuse-based and are one-time programmable.

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