combining entropy

[John Denker]

On 09/29/2008 05:13 AM, IanG wrote:
> My assumptions are:
> 
>  * I trust no single source of Random Numbers.
>  * I trust at least one source of all the sources.
>  * no particular difficulty with lossy combination.


> If I have N pools of entropy (all same size X) and I pool them
> together with XOR, is that as good as it gets?

Yes.

The second assumption suffices to prove the result,
since (random bit) XOR (anything) is random.

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