Re: [PATCH 2/2] ath9k: disable RNG by default

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Am Mittwoch, 10. August 2016, 02:35:04 CEST schrieb Pan, Miaoqing:

Hi Miaoqing,

> Hi Stephan,
> 
> For those less perfect noise source, can't pass the FIPS test.
> 
> static int update_kernel_random(int random_step,
>         unsigned char *buf, fips_ctx_t *fipsctx_in)
> {
>         unsigned char *p;
>         int fips;
> 
>         fips = fips_run_rng_test(fipsctx_in, buf);
>         if (fips)
>                 return 1;
> 
>         for (p = buf; p + random_step <= &buf[FIPS_RNG_BUFFER_SIZE];
>                  p += random_step) {
>                 random_add_entropy(p, random_step);
>                 random_sleep();
>         }
>         return 0;
> }

Not even the poor cheap AIS20 statistical tests from rngd pass?

I guess the only sensible solution is what Ted suggested to use 
add_device_randomness.

Ciao
Stephan
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