<p dir="ltr">Epoxy also hides any tampering done while in the mail. I strongly prefer verifiability. Bias is fine - no TRNG I know of is bias free at the noise source.</p>
<p dir="ltr">I think Paul got this design just about right. A future version maybe could improve a few things, but using popular circuits for now is wise.</p>
<p dir="ltr">Bill</p>