Re: Re: Still wondering about random numbers... - Mailing list pgsql-general

From Doug McNaught
Subject Re: Re: Still wondering about random numbers...
Date
Msg-id m3vgjyirc9.fsf@belphigor.mcnaught.org
Whole thread Raw
In response to Re: Still wondering about random numbers...  (Bruno Wolff III <bruno@wolff.to>)
List pgsql-general
Allan Engelhardt <allane@cybaea.com> writes:

> "/dev/urandom is not really better than rand(3) or random(3) *in
> this situation* [i.e. when reads from /dev/random stalls and there
> is no system entropy]"

I would still disagree.  The difference for crypto purposes between a
CRNG seeded with real entropy (/dev/urandom) and an LCG (libc
functions) is huge.  The former is useful (with caveats); the latter
is trivially breakable.

-Doug
--
Free Dmitry Sklyarov!
http://www.freesklyarov.org/

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