Antw: Re: [kernel-hardening] Re: [PATCH v4 06/13] iscsi: ensure RNG is seeded before use

[Ulrich Windl]

>>> Jeffrey Walton <noloader@xxxxxxxxx> schrieb am 17.06.2017 um 16:23 in Nachricht
<CAH8yC8nHX2r9cfQ0gNeJAUrgSfAS8V16dVHv35BRnLn-YprZCg@xxxxxxxxxxxxxx>:

[...]
> But its not clear to me how to ensure uniqueness when its based on
> randomness from the generators.

Even with a perfect random generator non-unique values are possible (that's why it's random). It's unlikely, but it can happen. The question is whether the probability of non-unique values from /dev/urandom is any higher than that for values read from /dev/random. One _might_ be able to predict the values from /dev/urandom.

Regards,
Ulrich

> 
> Jeff
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