AES bitstream encryption

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Documenting the Lattice ECP5 bit-stream format.

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AES bitstream encryption #241

Open Aurelio92 opened 5 months ago

Aurelio92 commented 5 months ago

I am not sure if this is the right place to ask, but is there any way to encrypt the bitstream using an AES key? I know the ECP5 family supports it, but I don't know if the open toolchain does. This would also require a way to program the OTP eFuses

Thank you

gatecat commented 5 months ago

Unfortunately, this isn't supported, attempting to figure out eFuses without risking bricking several FPGAs has never seemed very tempting...

Aurelio92 commented 5 months ago

Fair enough, totally understandable. Thank you for the quick answer!