[FFmpeg-devel] [PATCH] Make av_get_random_seed not block when waiting for more entropy

Michael Niedermayer michaelni
Thu Jul 1 23:24:41 CEST 2010

On Thu, Jul 01, 2010 at 01:31:01PM +0200, Nicolas George wrote:
> Le duodi 12 messidor, an CCXVIII, Michael Niedermayer a ?crit?:
> > who, when, based on what in which peer reviewed paper?
> > 
> > I remember a paper finding weaknesses in linux random number
> > generator. I dont remember details though sadly
> I asked to my contacts in the cryptographic academic field fore details:
> A few years back, around 2006, there was a flaw in Linux urandom: without
> real entropy, if someone gained full knowledge of the internal state of the
> PRNG (which require essentially root access), he could with a lot of time
> (but not impossibly lots of time) derive previous states, and thus find
> output that were generated before he gained root access.

exactly, i remember now. That was the one ive meant


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I know you won't believe me, but the highest form of Human Excellence is
to question oneself and others. -- Socrates
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