Re: [PATCH 0/2] Add support for Qualcomm's PRNG

[Clemens Ladisch]

Stanimir Varbanov wrote:
> I ran the rngtest with following command line:
>
> # cat /dev/hw_random | rngtest -c 100000
> ...
> rngtest: bits received from input: 2000000032
> rngtest: FIPS 140-2 successes: 99925
> rngtest: FIPS 140-2 failures: 75
> ...
>
> Could you guys comment those results?

These tests are expected to fail a few times even for perfectly random
data (think monkeys/Shakespeare).  An entropy source will be permanently
disabled by rngd only if the failure ratio is worse than 1 in 1000.


Regards,
Clemens
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