This is a great post with really valuable resources for any practical attempt to use strong randomness, but aren't you missing the whole point of the article?
Surely if you can just use a strong RNG to generate the key for the cryptographic algorithm you could just use that for all your randomness and ignore the stream of input entirely? The whole point of the article is how to extract the entropy from an unknown/untrusted input stream.
It's like the author has presented a recipe for a chocolate cake and you've said "it's better if you already have a cake, then you can just take a slice of that". Well yes.
Or in the domain of the article, faced with von Neumann's algorithm for getting fair flips from a biased coin, your solution amounts to "Instead I just flip my own coin which I know is fair."
Surely if you can just use a strong RNG to generate the key for the cryptographic algorithm you could just use that for all your randomness and ignore the stream of input entirely? The whole point of the article is how to extract the entropy from an unknown/untrusted input stream.
It's like the author has presented a recipe for a chocolate cake and you've said "it's better if you already have a cake, then you can just take a slice of that". Well yes.
Or in the domain of the article, faced with von Neumann's algorithm for getting fair flips from a biased coin, your solution amounts to "Instead I just flip my own coin which I know is fair."