Messages in this thread | | | Date | Mon, 17 Feb 2014 22:07:50 +0100 | Subject | Re: [RFC/PATCH 0/3] Add devicetree scanning for randomness | From | Geert Uytterhoeven <> |
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On Mon, Feb 17, 2014 at 7:23 PM, Jason Cooper <jason@lakedaemon.net> wrote: >> Could we use a faster hash function that scans the entire device tree and >> then just feed the output of that into add_device_randomness? We probably >> can't expect that there is a lot of entropy in the DT blob, so the >> result wouldn't be all that different in terms of quality of the random >> seed. > > I think it would be easier to identify the few attributes that differ > from board to board (mac address, serial number, etc), and differ from > boot to boot (random-seed, timestamp) and just extract and feed those > in.
Isn't identifying those (mostly) a manual process? Calculating a fast hash is fully automatic.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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