Robin Getz wrote:
I'm just wondering what people using on standard embedded/headless/diskless
targets (which do not have hw random number generators) as a source of
entropy - since networking was removed as an entropy source circa 2.6.26
On my target:
root:/> cat /proc/sys/kernel/random/entropy_avail
0
is about all I get... (since I'm not running any userspace utils yet).
I have seen rngd, clrngd, audio_entropyd, & video_entroyd - but I was just
wondering what others were actually using. (I was cautioned that everything
was pretty CPU intensive, since they all have a FIPS testing to ensure
randomness)...
The answer on the box I'm working on is: very little. I need to generate
an Ethernet MAC address and had to come up with way so that few random
bits I had were sufficient, in my particular environment, to avoid
address collisions.
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