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The most important part of this project is in the very last sentence: it's all implemented on an FPGA (one which doesn't have any backdoorable-for-surveillance
by octoberfranklin 4y ago
The most important part of this project is in the very last sentence: it's all implemented on an FPGA (one which doesn't have any backdoorable-for-surveillance hard cores).
Without that, none of the other stuff would be trustable.
- kfreds 4y agoNote that we specifically chose the Lattice ice40 UltraPlus 5K because: - It is supported by an open-source FPGA toolchain - Has an in-package non-volatile configuration memory (NVCM) that is lockable. This is where we'll eventually keep the FPGA configuration bitstream, including the unique per device secret. After some reverse-engineering work we're also able to program and lock NVCM with open tooling, as opposed to having to use Lattice's proprietary one.