[cryptography] urandom vs random

Ben Laurie ben at links.org
Sat Aug 17 12:50:25 EDT 2013


On 17 August 2013 10:09, Jeffrey Walton <noloader at gmail.com> wrote:

> On Sat, Aug 17, 2013 at 7:46 AM, Ben Laurie <ben at links.org> wrote:
> >
> > ...
> >
> > Also, if there are other sources, why are they not being fed in to the
> > system PRNG?
> Linux 3.x kernels decided to stop using IRQ interrupts (removal of the
> IRQF_SAMPLE_RANDOM flag, without an alternative to gather entropy).
>
> "[PATCH 17/17] random: final removal of IRQF_SAMPLE_RANDOM,"
> http://lkml.indiana.edu/hypermail/linux/kernel/1207.2/01043.html.
>

I haven't studied the Linux PRNG, but my casual understanding is it does
not deal well with useless input. This is obviously a defect.


> Jeff
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.randombit.net/pipermail/cryptography/attachments/20130817/86c0b10f/attachment.html>


More information about the cryptography mailing list