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A comment on USB True Random Number Generator. Parent comment

Re:USB True Random Number Generator by dododo on Wednesday June 23, 2010 @07:30AM (#1454633)
why hash the output then? this is introducing a dependence in the PRNG that you seem not to need (nor want).

if you're going to generate another 80 bits of entropy, then simply use this as the seed for another PRNG. this, sure, i agree, will get you more entropy, because you're adding more entropy to the system from an external source (such as the advertised device).

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Re:USB True Random Number Generator by stcredzero on Wednesday June 23, 2010 @07:57AM (#1454677)
Hashing the output makes the seed harder to infer from the output and also tends to make the output look better on randomness tests.
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