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Date: Wed, 05 Jul 2017 09:08:41 +0200
From: "Ulrich Windl" <>
To: "Lee Duncan" <>
Cc: "David Miller" <>,
 "Eric Biggers" <>,
 "open-iscsi" <>,
 "Nicholas A.Bellinger" <>,
 "Greg Kroah-Hartman" <>,
 "" <>,
 "Ted Ts'o" <>,"Chris Leech" <>,
 "Linux Crypto Mailing List" <>,
 <>, "Jason A.Donenfeld" <>
Subject: Antw: Re: Re: [PATCH v4 06/13] iscsi:
 ensure RNG is seeded before use

>>> Jeffrey Walton <> schrieb am 17.06.2017 um 16:23 in Nachricht

> 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.


> Jeff
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