| History log of /src/sys/arch/arm/at91/at91dbguvar.h |
| Revision | | Date | Author | Comments |
| 1.6 |
| 14-Apr-2015 |
riastradh | Include <sys/rndsource.h> where it is actually used.
I had removed <sys/rnd.h> from files that didn't mention anything of
the rnd(9) API. But they included other files which assumed
<sys/rnd.h> had already been included.
|
| 1.5 |
| 02-Feb-2012 |
tls | branches: 1.5.6; 1.5.24;
Entropy-pool implementation move and cleanup.
1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.
2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.
3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.
4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.
5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.
ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
|
| 1.4 |
| 19-Nov-2011 |
tls | branches: 1.4.2;
First step of random number subsystem rework described in
<20111022023242.BA26F14A158@mail.netbsd.org>. This change includes
the following:
An initial cleanup and minor reorganization of the entropy pool
code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are
fixed. Some effort is made to accumulate entropy more quickly at
boot time.
A generic interface, "rndsink", is added, for stream generators to
request that they be re-keyed with good quality entropy from the pool
as soon as it is available.
The arc4random()/arc4randbytes() implementation in libkern is
adjusted to use the rndsink interface for rekeying, which helps
address the problem of low-quality keys at boot time.
An implementation of the FIPS 140-2 statistical tests for random
number generator quality is provided (libkern/rngtest.c). This
is based on Greg Rose's implementation from Qualcomm.
A new random stream generator, nist_ctr_drbg, is provided. It is
based on an implementation of the NIST SP800-90 CTR_DRBG by
Henric Jungheim. This generator users AES in a modified counter
mode to generate a backtracking-resistant random stream.
An abstraction layer, "cprng", is provided for in-kernel consumers
of randomness. The arc4random/arc4randbytes API is deprecated for
in-kernel use. It is replaced by "cprng_strong". The current
cprng_fast implementation wraps the existing arc4random
implementation. The current cprng_strong implementation wraps the
new CTR_DRBG implementation. Both interfaces are rekeyed from
the entropy pool automatically at intervals justifiable from best
current cryptographic practice.
In some quick tests, cprng_fast() is about the same speed as
the old arc4randbytes(), and cprng_strong() is about 20% faster
than rnd_extract_data(). Performance is expected to improve.
The AES code in src/crypto/rijndael is no longer an optional
kernel component, as it is required by cprng_strong, which is
not an optional kernel component.
The entropy pool output is subjected to the rngtest tests at
startup time; if it fails, the system will reboot. There is
approximately a 3/10000 chance of a false positive from these
tests. Entropy pool _input_ from hardware random numbers is
subjected to the rngtest tests at attach time, as well as the
FIPS continuous-output test, to detect bad or stuck hardware
RNGs; if any are detected, they are detached, but the system
continues to run.
A problem with rndctl(8) is fixed -- datastructures with
pointers in arrays are no longer passed to userspace (this
was not a security problem, but rather a major issue for
compat32). A new kernel will require a new rndctl.
The sysctl kern.arandom() and kern.urandom() nodes are hooked
up to the new generators, but the /dev/*random pseudodevices
are not, yet.
Manual pages for the new kernel interfaces are forthcoming.
|
| 1.3 |
| 23-Oct-2009 |
snj | branches: 1.3.12;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
|
| 1.2 |
| 03-Jul-2008 |
matt | branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
|
| 1.1 |
| 10-Nov-2007 |
matt | branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91dbguvar.h was initially added on branch matt-nb4-arm.
|
| 1.1.22.1 |
| 03-Jul-2008 |
simonb | Sync with head.
|
| 1.1.20.2 |
| 11-Mar-2010 |
yamt | sync with head
|
| 1.1.20.1 |
| 04-May-2009 |
yamt | sync with head.
|
| 1.1.16.1 |
| 28-Sep-2008 |
mjf | Sync with HEAD.
|
| 1.1.2.1 |
| 10-Nov-2007 |
matt | Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
|
| 1.2.4.2 |
| 18-Sep-2008 |
wrstuden | Sync with wrstuden-revivesa-base-2.
|
| 1.2.4.1 |
| 03-Jul-2008 |
wrstuden | file at91dbguvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
|
| 1.3.12.1 |
| 17-Apr-2012 |
yamt | sync with head
|
| 1.4.2.1 |
| 18-Feb-2012 |
mrg | merge to -current.
|
| 1.5.24.1 |
| 06-Jun-2015 |
skrll | Sync with HEAD
|
| 1.5.6.1 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
