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Python Random Number Generator for OTP

> As is the case with most random noise sources, you obviously want to
> whiten the output before adding it to your entropy pool.

Actually, you want to whiten it before output, not before input. Whitening before input is a problem, because you can't run an estimator on the input -- because it's been whitened.

If you want to know the unbiased entropy of a source, you want the raw inputs. If you don't care about the unbiased entropy, then you don't.