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nexedi
linux
Commits
59bec16f
Commit
59bec16f
authored
Aug 11, 2003
by
Jeff Garzik
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Merge redhat.com:/garz/repo/linus-2.6
into redhat.com:/garz/repo/misc-2.6
parents
3f16e892
95684fbd
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Documentation/hw_random.txt
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Documentation/hw_random.txt
View file @
59bec16f
Hardware driver for Intel
i810 Random Number Generator
(RNG)
Hardware driver for Intel
/AMD/VIA Random Number Generators
(RNG)
Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
Introduction:
Introduction:
The
i810_rng
device driver is software that makes use of a
The
hw_random
device driver is software that makes use of a
special hardware feature on
the Intel i8xx-based chipsets
,
special hardware feature on
your CPU or motherboard
,
a Random Number Generator (RNG).
a Random Number Generator (RNG).
In order to make effective use of this device driver, you
In order to make effective use of this device driver, you
should download the support software as well. Download the
should download the support software as well. Download the
latest version of the "
intel-
rng-tools" package from the
latest version of the "rng-tools" package from the
i810_rng
driver's official Web site:
hw_random
driver's official Web site:
http://sourceforge.net/projects/gkernel/
http://sourceforge.net/projects/gkernel/
...
@@ -29,14 +29,14 @@ Theory of operation:
...
@@ -29,14 +29,14 @@ Theory of operation:
Character driver. Using the standard open()
Character driver. Using the standard open()
and read() system calls, you can read random data from
and read() system calls, you can read random data from
the
i810
RNG device. This data is NOT CHECKED by any
the
hardware
RNG device. This data is NOT CHECKED by any
fitness tests, and could potentially be bogus (if the
fitness tests, and could potentially be bogus (if the
hardware is faulty or has been tampered with). Data is only
hardware is faulty or has been tampered with). Data is only
output if the hardware "has-data" flag is set, but nevertheless
output if the hardware "has-data" flag is set, but nevertheless
a security-conscious person would run fitness tests on the
a security-conscious person would run fitness tests on the
data before assuming it is truly random.
data before assuming it is truly random.
/dev/
intel_rng
is char device major 10, minor 183.
/dev/
hwrandom
is char device major 10, minor 183.
Driver notes:
Driver notes:
...
@@ -70,6 +70,10 @@ Driver details:
...
@@ -70,6 +70,10 @@ Driver details:
Change history:
Change history:
Version 1.0.0:
* Merge Intel, AMD, VIA RNG drivers into one.
Further changelog in BitKeeper.
Version 0.9.8:
Version 0.9.8:
* Support other i8xx chipsets by adding 82801E detection
* Support other i8xx chipsets by adding 82801E detection
* 82801DB detection is the same as for 82801CA.
* 82801DB detection is the same as for 82801CA.
...
...
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