On Fri, Feb 17, 2012 at 8:39 PM, Thierry Moreau <[email protected]> wrote: > Ben Laurie wrote: >> >> On Fri, Feb 17, 2012 at 7:32 PM, Thierry Moreau >> <[email protected]> wrote: >>> >>> Isn't /dev/urandom BY DEFINITION of limited true entropy? >> >> >> $ ls -l /dev/urandom >> lrwxr-xr-x 1 root wheel 6 Nov 20 18:49 /dev/urandom -> random >> > > The above is the specific instance on your environment. Mine is different: > different kernel major/minor device numbers for /dev/urandom and > /dev/random.
So? Your claim was "Isn't /dev/urandom BY DEFINITION of limited true entropy?" My response is: "no". > I got the definition from > > man 4 random > > If your /dev/urandom never blocks the requesting task irrespective of the > random bytes usage, then maybe your /dev/random is not as secure as it might > be (unless you have an high speed entropy source, but what is "high speed" > in this context?) Oh, please. Once you have 256 bits of good entropy, that's all you need. _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
