Re: [PATCH] (0/4) Entropy accounting fixes

From: Linus Torvalds (
Date: Sat Aug 17 2002 - 23:01:20 EST

On 17 Aug 2002, Robert Love wrote:
> [1] this is why I wrote my netdev-random patches. some machines just
> have to take the entropy from the network card... there is nothing
> else.

I suspect that Oliver is 100% correct in that the current code is just
_too_ trusting. And parts of his patches seem to be in the "obviously
good" category (ie the xor'ing of the buffers instead of overwriting).

So I think that if we just made the code be much less trusting (say,
consider the TSC information per interrupt to give only a single bit of
entropy, for example), and coupled that with making network devices always
be considered sources of entropy, we'd have a reasonable balance.


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