i82808 hardware hub RNG

i82808 hardware hub RNG

[Heusden, Folkert van]

Hi,

I wrote a daemon that fetches (as root-user) random numbers from the RNG in
the i82808 (found on 815-chipsets).
You can download it from http://www.vanheusden.com/Linux/random.php3 .
Currently, I'm trying to rewrite things into a kernel-module so that one has
a standard character device which can deliver random values then.
Please give it a try as I do not own a PC with such a motherboard ;-/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

Re: i82808 hardware hub RNG

[Robert M. Love]

On Sun, 5 Nov 2000, Heusden, Folkert van hissed:
> I wrote a daemon that fetches (as root-user) random numbers from the RNG in
> the i82808 (found on 815-chipsets).
> You can download it from http://www.vanheusden.com/Linux/random.php3 .
> Currently, I'm trying to rewrite things into a kernel-module so that one has
> a standard character device which can deliver random values then.
> Please give it a try as I do not own a PC with such a motherboard ;-/

a driver for this already exists in 2.4 and was recently back-ported to
2.2. it works on i810, i815, and i820. it features a char device for
grabbing entropy and a timer device to inject the entropy directly into
/dev/random.

Jeff Garzik wrote it.

i am using it in 2.4 on my i815.

-- 
Robert M. Love
rml@ufl.edu
rml@tech9.net

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

Re: i82808 hardware hub RNG

[Philipp Rumpf]

On Sun, Nov 05, 2000 at 06:19:21PM +0100, Heusden, Folkert van wrote:
> I wrote a daemon that fetches (as root-user) random numbers from the RNG in
> the i82808 (found on 815-chipsets).
> You can download it from http://www.vanheusden.com/Linux/random.php3 .
> Currently, I'm trying to rewrite things into a kernel-module so that one has
> a standard character device which can deliver random values then.
> Please give it a try as I do not own a PC with such a motherboard ;-/

So how is this different from drivers/char/i810_rng.c ?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

RE: i82808 hardware hub RNG

[Heusden, Folkert van]

> Excellent!
> Got any URLs?
RML> its been in 2.4 for a year or so, although only in the last few tests
as
RML> it supported i815. it has been in 2.2 since 2.2.17 or the current
2.2.18.

2.2.18 I think, or some undetected disk-error must have swept it away from
the local sourcetree :o)

RML> take a look at linux/drivers/char/i810_rng.c
RML> Jeff's homepage for it is http://gtf.org/garzik/drivers/i810_rng/ but
RML> probably not as up to date as the C source.

Thank you!

RML> it works great for me. i have it feeding the standard entropy pool, so
my
RML> /dev/random is fat with entropy.

You didn't forget to change the line
random.c: #define POOLWORDS 128    /* Power of 2 - note that this is 32-bit
words */
to
#define POOLWORDS 2048    /* Power of 2 - note that this is 32-bit words */
? :o)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

RE: i82808 hardware hub RNG

[Heusden, Folkert van]

> I wrote a daemon that fetches (as root-user) random numbers from the RNG
in
> the i82808 (found on 815-chipsets).
> You can download it from http://www.vanheusden.com/Linux/random.php3 .
> Currently, I'm trying to rewrite things into a kernel-module so that one
has
> a standard character device which can deliver random values then.
> Please give it a try as I do not own a PC with such a motherboard ;-/
PR> So how is this different from drivers/char/i810_rng.c ?

I don't know; 2.2.17 doesn't have it :-}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

RE: i82808 hardware hub RNG

[Robert M. Love]

On Sun, 5 Nov 2000, Heusden, Folkert van sang:
> Excellent!
> Got any URLs?

its been in 2.4 for a year or so, although only in the last few tests as
it supported i815. it has been in 2.2 since 2.2.17 or the current 2.2.18.

take a look at linux/drivers/char/i810_rng.c

Jeff's homepage for it is http://gtf.org/garzik/drivers/i810_rng/ but
probably not as up to date as the C source.

it works great for me. i have it feeding the standard entropy pool, so my
/dev/random is fat with entropy.

-- 
Robert M. Love
rml@ufl.edu
rml@tech9.net

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

RE: i82808 hardware hub RNG

[Heusden, Folkert van]

> I wrote a daemon that fetches (as root-user) random numbers from the RNG
in
> the i82808 (found on 815-chipsets).
> You can download it from http://www.vanheusden.com/Linux/random.php3 .
> Currently, I'm trying to rewrite things into a kernel-module so that one
has
> a standard character device which can deliver random values then.
> Please give it a try as I do not own a PC with such a motherboard ;-/
RML> a driver for this already exists in 2.4 and was recently back-ported to
RML> 2.2. it works on i810, i815, and i820. it features a char device for
RML> grabbing entropy and a timer device to inject the entropy directly into
RML> /dev/random.
RML> Jeff Garzik wrote it.

Excellent!
Got any URLs?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/