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| author |   Jarod Wilson <jarod@redhat.com> | 2012-11-06 10:42:42 -0500 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2012-11-08 07:19:18 -0500 |
| commit | ec8f02da9ea500474417d1d31fa3d46a562ab366 (patch) | |
| tree | 9a7bb64cdbc436f59345288181768eede207bcf2 /kernel | |
| parent | random: fix debug format strings (diff) | |
| download | linux-dev-ec8f02da9ea500474417d1d31fa3d46a562ab366.tar.xz linux-dev-ec8f02da9ea500474417d1d31fa3d46a562ab366.zip | |
random: prime last_data value per fips requirements
The value stored in last_data must be primed for FIPS 140-2 purposes. Upon
first use, either on system startup or after an RNDCLEARPOOL ioctl, we
need to take an initial random sample, store it internally in last_data,
then pass along the value after that to the requester, so that consistency
checks aren't being run against stale and possibly known data.
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: "David S. Miller" <davem@davemloft.net>
CC: Matt Mackall <mpm@selenic.com>
CC: linux-crypto@vger.kernel.org
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions