On 10-01-07 12:40:02, Roberto Ragusa wrote:
Luca wrote:
> Hi all,
> if I simply write to /dev/random, will that increase the entropy
> of my system? (I'm assuming that the data I'm writing are random
> and that somehow I got them).
Wikipedia says so.
My tests say no.
In particular this brutal approach does not increase the entropy
cat /dev/urandom >/dev/random
(it is stupid to do that, I know, but it's just a test)
...
`man 4 random` says that the current entropy can be read and written
from /dev/urandom, not /dev/random. This is used to preserver entropy
across reboots.
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