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RE: Re: Entropy gathering?
- From: Jay Foster <jay at systech dot com>
- To: 'Grant Edwards' <grante at visi dot com>, ecos-discuss at sources dot redhat dot com
- Date: Thu, 3 Apr 2008 13:13:11 -0800
- Subject: RE: [ECOS] Re: Entropy gathering?
I hadn't realized that this was also implemented by a colleague and is not
part of the public eCos. Never mind.
Jay
-----Original Message-----
From: Grant Edwards [mailto:grante@visi.com]
Sent: Thursday, April 03, 2008 12:53 PM
To: ecos-discuss@sources.redhat.com
Subject: [ECOS] Re: Entropy gathering?
On 2008-04-03, Jay Foster <jay@systech.com> wrote:
> A colleague implemented something like this by creating a
> function that could be called from various places at random
> times, such as the ethernet driver (ether_input()), serial
> port modem signal changes, etc. The function would read the
> HAL microsecond clock value and write the lower 16-bits to
> /dev/random. After a pre-determined number of such events,
> this function would stop writing to /dev/random and simply
> return.
Where's the source for /dev/random?
I spent quite a while searching through the source tree for
random-number resources yesterday and never found it. I just
grepped through ecos.db and through all the filenames in the
source tree and didn't get any hits on the string 'random' or
'RANDOM'. I also grepped through all of the c/c++ files and
never found the string '/dev/random'. It seems to be well
hidden...
--
Grant Edwards grante Yow! I'm having a
RELIGIOUS
at EXPERIENCE ... and I
don't
visi.com take any DRUGS
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