urandom vs haveged

David Sommerseth davids at redhat.com
Fri Mar 30 20:42:09 UTC 2012


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On 30/03/12 21:01, Przemek Klosowski wrote:
> On 03/30/2012 01:02 PM, David Sommerseth wrote:
>> 
>> That sounds reasonable.  Unless I mix /dev/random and
>> /dev/urandom, the latter blocks until it has filled up the
>> entropy pool again.
>> 
> Eh, the FORMER (/dev/random) blocks until it has filled up the
> entropy pool again. I seem to remember that urandom is a PRNG
> seeded with data from /dev/random; it never blocks.

Right!  I too often mix those two.  Thanks for the correction.


kind regards,

David Sommerseth
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