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Re: /dev/urandom
From: |
Leo Famulari |
Subject: |
Re: /dev/urandom |
Date: |
Tue, 10 Jul 2018 18:40:20 -0400 |
User-agent: |
Mutt/1.10.0 (2018-05-17) |
On Tue, Jul 10, 2018 at 08:58:43PM +0200, Danny Milosavljevic wrote:
> It writes an image file. Since that image is later written to flash storage
> (by the user), the program randomizes the data in order to increase longevity.
> Then it stores the random data used as well.
I see. Like Ludo and Mark, I think we should avoid doing tricky things
with urandom.
Could /dev/zero work here? Does it use urandom once, to get a seed, or
does it read urandom repeatedly, expecting different values each time?
Also, I wonder if Guix users would want reproducibility here instead of
longer-lived NAND storage.
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Re: /dev/urandom, Ludovic Courtès, 2018/07/10