[liberationtech] Random number generator failure in Rasperri Pis?

Petter Ericson pettter at acc.umu.se
Fri Jul 19 05:22:54 PDT 2013


> Just came accross this article, apparently showing the bad quality of
> the hardware RNG in Raspberri Pi devices.
> 
> http://scruss.com/blog/2013/06/07/well-that-was-unexpected-the-raspberry-pis-hardware-random-number-generator/

I see nothing in the blog post indicating that the random data from the
Pi HW is bad. Rather, he uses that to show how good random data should look,
after which he implements RANDU to show how _not_ to do it.

I have seen this being posted here and there as a "look, Pi HWrand bad"
thing, but I have to wonder how many actually read the blog post, considering
he even ran rngtest for a thousand runs with no failures on the output of /dev/hwrng

Best

/P

-- 
Petter Ericson (pettter at acc.umu.se)
Telecomix Sleeper Jellyfish



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