[Cryptography] combining lots of lousy RNGs ... or not
phill at hallambaker.com
Tue Nov 22 10:13:27 EST 2016
On Mon, Nov 21, 2016 at 5:53 PM, John Denker <jsd at av8n.com> wrote:
> Here are some useful equations:
> random XOR squish = random
> squish XOR squish = squish (*not* random)
No. random XOR squish = squish
If I can interfere with squish, I can undo your random if I know it. And in
real world systems I can often know it.
A better equation is H (random + squish) = random
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