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Workaround lack of boottime entropy for GFE environments #2296

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Workaround lack of boottime entropy for GFE environments #2296

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bsdjhb
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@bsdjhb bsdjhb commented Jan 22, 2025

  • random: Add a kernel option to reduce the default fortuna poolsize
  • GFE: Weaken the PRNG for FPGA kernels

bsdjhb added 2 commits January 22, 2025 10:55
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random: Add a kernel option to reduce the default fortuna poolsize
b314cbb 
This hack is insecure, but prevents blocking waiting for entropy in
environments without boot-time entropy such as existing FPGA setups.
@bsdjhb
GFE: Weaken the PRNG for FPGA kernels
c52a2c6 
This can be removed in the future if our cores are updated to
implement the Zkr extension.
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bsdjhb commented Jan 23, 2025

@PeterRugg is this something you can test?

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Thanks: I'll give it a go if I can get a Jenkins build

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@bsdjhb @PeterRugg