Am 2020-06-04 14:58, schrieb Heinrich Schuchardt:
On 04.06.20 14:52, Michael Walle wrote:
Am 2020-06-04 14:26, schrieb Heinrich Schuchardt:
On 04.06.20 10:05, Horia Geantă wrote:
On 6/4/2020 5:31 AM, Heinrich Schuchardt wrote:
From what I see, driver added by Michael is using the PRNG / DRBG
and not the TRNG. Is this acceptable?
If it is only PRNG, this is not what we look for. If a PRNG/DRBG is
used
to ameliorate the raw entropy stream like Linux does for the
/dev/random
device this is fine. We need something non-deterministic.
What do you mean by "only PRNG"?
-a PRNG / DRBG (SP800-90A compliant DRBG_Hash) - which is seeded
from the TRNG
So while it is a PRNG, it is non-deterministic because its seeded
from the TRNG.
If for every byte that your DM_RNG driver outputs at least one byte
from
the TRNG is consumed, it is fine. Otherwise it is not what we are
looking for.
And why is that? This should really be documented somewhere.
-michael
