Commit graph

969 commits

Author SHA1 Message Date
Darrick J. Wong
6a0962b22e crypto: crc32c should use library implementation
Since lib/crc32.c now provides crc32c, remove the software implementation
here and call the library function instead.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Bob Pearson <rpearson@systemfabricworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23 16:58:38 -07:00
Linus Torvalds
b8716614a7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 "* sha512 bug fixes (already in your tree).
  * SHA224/SHA384 AEAD support in caam.
  * X86-64 optimised version of Camellia.
  * Tegra AES support.
  * Bulk algorithm registration interface to make driver registration easier.
  * padata race fixes.
  * Misc fixes."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (31 commits)
  padata: Fix race on sequence number wrap
  padata: Fix race in the serialization path
  crypto: camellia - add assembler implementation for x86_64
  crypto: camellia - rename camellia.c to camellia_generic.c
  crypto: camellia - fix checkpatch warnings
  crypto: camellia - rename camellia module to camellia_generic
  crypto: tcrypt - add more camellia tests
  crypto: testmgr - add more camellia test vectors
  crypto: camellia - simplify key setup and CAMELLIA_ROUNDSM macro
  crypto: twofish-x86_64/i586 - set alignmask to zero
  crypto: blowfish-x86_64 - set alignmask to zero
  crypto: serpent-sse2 - combine ablk_*_init functions
  crypto: blowfish-x86_64 - use crypto_[un]register_algs
  crypto: twofish-x86_64-3way - use crypto_[un]register_algs
  crypto: serpent-sse2 - use crypto_[un]register_algs
  crypto: serpent-sse2 - remove dead code from serpent_sse2_glue.c::serpent_sse2_init()
  crypto: twofish-x86 - Remove dead code from twofish_glue_3way.c::init()
  crypto: In crypto_add_alg(), 'exact' wants to be initialized to 0
  crypto: caam - fix gcc 4.6 warning
  crypto: Add bulk algorithm registration interface
  ...
2012-03-21 13:20:43 -07:00
Linus Torvalds
9f3938346a Merge branch 'kmap_atomic' of git://github.com/congwang/linux
Pull kmap_atomic cleanup from Cong Wang.

It's been in -next for a long time, and it gets rid of the (no longer
used) second argument to k[un]map_atomic().

Fix up a few trivial conflicts in various drivers, and do an "evil
merge" to catch some new uses that have come in since Cong's tree.

* 'kmap_atomic' of git://github.com/congwang/linux: (59 commits)
  feature-removal-schedule.txt: schedule the deprecated form of kmap_atomic() for removal
  highmem: kill all __kmap_atomic() [swarren@nvidia.com: highmem: Fix ARM build break due to __kmap_atomic rename]
  drbd: remove the second argument of k[un]map_atomic()
  zcache: remove the second argument of k[un]map_atomic()
  gma500: remove the second argument of k[un]map_atomic()
  dm: remove the second argument of k[un]map_atomic()
  tomoyo: remove the second argument of k[un]map_atomic()
  sunrpc: remove the second argument of k[un]map_atomic()
  rds: remove the second argument of k[un]map_atomic()
  net: remove the second argument of k[un]map_atomic()
  mm: remove the second argument of k[un]map_atomic()
  lib: remove the second argument of k[un]map_atomic()
  power: remove the second argument of k[un]map_atomic()
  kdb: remove the second argument of k[un]map_atomic()
  udf: remove the second argument of k[un]map_atomic()
  ubifs: remove the second argument of k[un]map_atomic()
  squashfs: remove the second argument of k[un]map_atomic()
  reiserfs: remove the second argument of k[un]map_atomic()
  ocfs2: remove the second argument of k[un]map_atomic()
  ntfs: remove the second argument of k[un]map_atomic()
  ...
2012-03-21 09:40:26 -07:00
Cong Wang
f0dfc0b0b7 crypto: remove the second argument of k[un]map_atomic()
Signed-off-by: Cong Wang <amwang@redhat.com>
2012-03-20 21:48:16 +08:00
Jussi Kivilinna
0b95ec56ae crypto: camellia - add assembler implementation for x86_64
Patch adds x86_64 assembler implementation of Camellia block cipher. Two set of
functions are provided. First set is regular 'one-block at time' encrypt/decrypt
functions. Second is 'two-block at time' functions that gain performance increase
on out-of-order CPUs. Performance of 2-way functions should be equal to 1-way
functions with in-order CPUs.

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmark results:

AMD Phenom II 1055T (fam:16, model:10):

camellia-asm vs camellia_generic:
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.27x   1.22x   1.30x   1.42x   1.30x   1.34x   1.19x   1.05x   1.23x   1.24x
64B     1.74x   1.79x   1.43x   1.87x   1.81x   1.87x   1.48x   1.38x   1.55x   1.62x
256B    1.90x   1.87x   1.43x   1.94x   1.94x   1.95x   1.63x   1.62x   1.67x   1.70x
1024B   1.96x   1.93x   1.43x   1.95x   1.98x   2.01x   1.67x   1.69x   1.74x   1.80x
8192B   1.96x   1.96x   1.39x   1.93x   2.01x   2.03x   1.72x   1.64x   1.71x   1.76x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.23x   1.23x   1.33x   1.39x   1.34x   1.38x   1.04x   1.18x   1.21x   1.29x
64B     1.72x   1.69x   1.42x   1.78x   1.81x   1.89x   1.57x   1.52x   1.56x   1.65x
256B    1.85x   1.88x   1.42x   1.86x   1.93x   1.96x   1.69x   1.65x   1.70x   1.75x
1024B   1.88x   1.86x   1.45x   1.95x   1.96x   1.95x   1.77x   1.71x   1.77x   1.78x
8192B   1.91x   1.86x   1.42x   1.91x   2.03x   1.98x   1.73x   1.71x   1.78x   1.76x

camellia-asm vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.15x   1.22x
ecb-dec  1.16x   1.16x
cbc-enc  0.85x   0.90x
cbc-dec  1.20x   1.23x
ctr-enc  1.28x   1.30x
ctr-dec  1.27x   1.28x
lrw-enc  1.12x   1.16x
lrw-dec  1.08x   1.10x
xts-enc  1.11x   1.15x
xts-dec  1.14x   1.15x

Intel Core2 T8100 (fam:6, model:23, step:6):

camellia-asm vs camellia_generic:
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.10x   1.12x   1.14x   1.16x   1.16x   1.15x   1.02x   1.02x   1.08x   1.08x
64B     1.61x   1.60x   1.17x   1.68x   1.67x   1.66x   1.43x   1.42x   1.44x   1.42x
256B    1.65x   1.73x   1.17x   1.77x   1.81x   1.80x   1.54x   1.53x   1.58x   1.54x
1024B   1.76x   1.74x   1.18x   1.80x   1.85x   1.85x   1.60x   1.59x   1.65x   1.60x
8192B   1.77x   1.75x   1.19x   1.81x   1.85x   1.86x   1.63x   1.61x   1.66x   1.62x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.10x   1.07x   1.13x   1.16x   1.11x   1.16x   1.03x   1.02x   1.08x   1.07x
64B     1.61x   1.62x   1.15x   1.66x   1.63x   1.68x   1.47x   1.46x   1.47x   1.44x
256B    1.71x   1.70x   1.16x   1.75x   1.69x   1.79x   1.58x   1.57x   1.59x   1.55x
1024B   1.78x   1.72x   1.17x   1.75x   1.80x   1.80x   1.63x   1.62x   1.65x   1.62x
8192B   1.76x   1.73x   1.17x   1.78x   1.80x   1.81x   1.64x   1.62x   1.68x   1.64x

camellia-asm vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.17x   1.21x
ecb-dec  1.17x   1.20x
cbc-enc  0.80x   0.82x
cbc-dec  1.22x   1.24x
ctr-enc  1.25x   1.26x
ctr-dec  1.25x   1.26x
lrw-enc  1.14x   1.18x
lrw-dec  1.13x   1.17x
xts-enc  1.14x   1.18x
xts-dec  1.14x   1.17x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:56 +08:00
Jussi Kivilinna
617ae7c7a1 crypto: camellia - rename camellia.c to camellia_generic.c
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:55 +08:00
Jussi Kivilinna
e2861a71c0 crypto: camellia - fix checkpatch warnings
Fix checkpatch warnings before renaming file.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:55 +08:00
Jussi Kivilinna
075e39df67 crypto: camellia - rename camellia module to camellia_generic
Rename camellia module to camellia_generic to allow optimized assembler
implementations to autoload with module-alias.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:55 +08:00
Jussi Kivilinna
4de5933780 crypto: tcrypt - add more camellia tests
Add tests for CTR, LRW and XTS modes.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:55 +08:00
Jussi Kivilinna
0840605eb4 crypto: testmgr - add more camellia test vectors
New ECB, CBC, CTR, LRW and XTS test vectors for camellia. Larger ECB/CBC test
vectors needed for parallel 2-way camellia implementation.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:54 +08:00
Jussi Kivilinna
c9b56d33b0 crypto: camellia - simplify key setup and CAMELLIA_ROUNDSM macro
camellia_setup_tail() applies 'inverse of the last half of P-function' to
subkeys, which is unneeded if keys are applied directly to yl/yr in
CAMELLIA_ROUNDSM.

Patch speeds up key setup and should speed up CAMELLIA_ROUNDSM as applying
key to yl/yr early has less register dependencies.

Quick tcrypt camellia results:
 x86_64, AMD Phenom II, ~5% faster
 x86_64, Intel Core 2, ~0.5% faster
 i386, Intel Atom N270, ~1% faster

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:54 +08:00
Pablo Neira Ayuso
80d326fab5 netlink: add netlink_dump_control structure for netlink_dump_start()
Davem considers that the argument list of this interface is getting
out of control. This patch tries to address this issue following
his proposal:

struct netlink_dump_control c = { .dump = dump, .done = done, ... };

netlink_dump_start(..., &c);

Suggested by David S. Miller.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-26 14:10:06 -05:00
Linus Torvalds
a18d3afefa Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sha512 - use standard ror64()
2012-02-18 15:24:05 -08:00
Herbert Xu
d97055e62d Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Merge crypto tree as it has cherry-picked the ror64 patch from cryptodev.
2012-02-16 12:18:21 +08:00
Alexey Dobriyan
f2ea0f5f04 crypto: sha512 - use standard ror64()
Use standard ror64() instead of hand-written.
There is no standard ror64, so create it.

The difference is shift value being "unsigned int" instead of uint64_t
(for which there is no reason). gcc starts to emit native ROR instructions
which it doesn't do for some reason currently. This should make the code
faster.

Patch survives in-tree crypto test and ping flood with hmac(sha512) on.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-02-16 12:12:33 +08:00
Linus Torvalds
ca81a62198 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
This updates the sha512 fix so that it doesn't cause excessive stack
usage on i386.  This is done by reverting to the original code, and
avoiding the W duplication by moving its initialisation into the loop.

As the underlying code is in fact the one that we have used for years,
I'm pushing this now instead of postponing to the next cycle.

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sha512 - Avoid stack bloat on i386
  crypto: sha512 - Use binary and instead of modulus
2012-02-13 20:33:45 -08:00
Jesper Juhl
0cfdec7a65 crypto: In crypto_add_alg(), 'exact' wants to be initialized to 0
We declare 'exact' without initializing it and then do:

[...]
	if (strlen(p->cru_driver_name))
		exact = 1;

	if (priority && !exact)
		return -EINVAL;

[...]

If the first 'if' is not true, then the second will test an
uninitialized 'exact'.
As far as I can tell, what we want is for 'exact' to be initialized to
0 (zero/false).

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-02-05 15:12:25 +11:00
Herbert Xu
3a92d687c8 crypto: sha512 - Avoid stack bloat on i386
Unfortunately in reducing W from 80 to 16 we ended up unrolling
the loop twice.  As gcc has issues dealing with 64-bit ops on
i386 this means that we end up using even more stack space (>1K).

This patch solves the W reduction by moving LOAD_OP/BLEND_OP
into the loop itself, thus avoiding the need to duplicate it.

While the stack space still isn't great (>0.5K) it is at least
in the same ball park as the amount of stack used for our C sha1
implementation.

Note that this patch basically reverts to the original code so
the diff looks bigger than it really is.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-02-05 15:09:28 +11:00
Herbert Xu
58d7d18b52 crypto: sha512 - Use binary and instead of modulus
The previous patch used the modulus operator over a power of 2
unnecessarily which may produce suboptimal binary code.  This
patch changes changes them to binary ands instead.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-26 15:03:16 +11:00
Linus Torvalds
87f71ae2dd Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sha512 - reduce stack usage to safe number
  crypto: sha512 - make it work, undo percpu message schedule
2012-01-25 19:28:58 -08:00
Mark Brown
4b004346fe crypto: Add bulk algorithm registration interface
Hardware crypto engines frequently need to register a selection of
different algorithms with the core. Simplify their code slightly,
especially the error handling, by providing functions to register a
number of algorithms in a single call.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-26 13:35:49 +11:00
Linus Torvalds
c49c41a413 Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security
* 'for-linus' of git://selinuxproject.org/~jmorris/linux-security:
  capabilities: remove __cap_full_set definition
  security: remove the security_netlink_recv hook as it is equivalent to capable()
  ptrace: do not audit capability check when outputing /proc/pid/stat
  capabilities: remove task_ns_* functions
  capabitlies: ns_capable can use the cap helpers rather than lsm call
  capabilities: style only - move capable below ns_capable
  capabilites: introduce new has_ns_capabilities_noaudit
  capabilities: call has_ns_capability from has_capability
  capabilities: remove all _real_ interfaces
  capabilities: introduce security_capable_noaudit
  capabilities: reverse arguments to security_capable
  capabilities: remove the task from capable LSM hook entirely
  selinux: sparse fix: fix several warnings in the security server cod
  selinux: sparse fix: fix warnings in netlink code
  selinux: sparse fix: eliminate warnings for selinuxfs
  selinux: sparse fix: declare selinux_disable() in security.h
  selinux: sparse fix: move selinux_complete_init
  selinux: sparse fix: make selinux_secmark_refcount static
  SELinux: Fix RCU deref check warning in sel_netport_insert()

Manually fix up a semantic mis-merge wrt security_netlink_recv():

 - the interface was removed in commit fd77846152 ("security: remove
   the security_netlink_recv hook as it is equivalent to capable()")

 - a new user of it appeared in commit a38f7907b9 ("crypto: Add
   userspace configuration API")

causing no automatic merge conflict, but Eric Paris pointed out the
issue.
2012-01-14 18:36:33 -08:00
Alexey Dobriyan
b85a088f15 crypto: sha512 - use standard ror64()
Use standard ror64() instead of hand-written.
There is no standard ror64, so create it.

The difference is shift value being "unsigned int" instead of uint64_t
(for which there is no reason). gcc starts to emit native ROR instructions
which it doesn't do for some reason currently. This should make the code
faster.

Patch survives in-tree crypto test and ping flood with hmac(sha512) on.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-15 12:42:14 +11:00
Alexey Dobriyan
51fc6dc8f9 crypto: sha512 - reduce stack usage to safe number
For rounds 16--79, W[i] only depends on W[i - 2], W[i - 7], W[i - 15] and W[i - 16].
Consequently, keeping all W[80] array on stack is unnecessary,
only 16 values are really needed.

Using W[16] instead of W[80] greatly reduces stack usage
(~750 bytes to ~340 bytes on x86_64).

Line by line explanation:
* BLEND_OP
  array is "circular" now, all indexes have to be modulo 16.
  Round number is positive, so remainder operation should be
  without surprises.

* initial full message scheduling is trimmed to first 16 values which
  come from data block, the rest is calculated before it's needed.

* original loop body is unrolled version of new SHA512_0_15 and
  SHA512_16_79 macros, unrolling was done to not do explicit variable
  renaming. Otherwise it's the very same code after preprocessing.
  See sha1_transform() code which does the same trick.

Patch survives in-tree crypto test and original bugreport test
(ping flood with hmac(sha512).

See FIPS 180-2 for SHA-512 definition
http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-15 12:39:17 +11:00
Alexey Dobriyan
84e31fdb7c crypto: sha512 - make it work, undo percpu message schedule
commit f9e2bca6c2
aka "crypto: sha512 - Move message schedule W[80] to static percpu area"
created global message schedule area.

If sha512_update will ever be entered twice, hash will be silently
calculated incorrectly.

Probably the easiest way to notice incorrect hashes being calculated is
to run 2 ping floods over AH with hmac(sha512):

	#!/usr/sbin/setkey -f
	flush;
	spdflush;
	add IP1 IP2 ah 25 -A hmac-sha512 0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025;
	add IP2 IP1 ah 52 -A hmac-sha512 0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000052;
	spdadd IP1 IP2 any -P out ipsec ah/transport//require;
	spdadd IP2 IP1 any -P in  ipsec ah/transport//require;

XfrmInStateProtoError will start ticking with -EBADMSG being returned
from ah_input(). This never happens with, say, hmac(sha1).

With patch applied (on BOTH sides), XfrmInStateProtoError does not tick
with multiple bidirectional ping flood streams like it doesn't tick
with SHA-1.

After this patch sha512_transform() will start using ~750 bytes of stack on x86_64.
This is OK for simple loads, for something more heavy, stack reduction will be done
separatedly.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-15 12:39:17 +11:00
Linus Torvalds
4f58cb90bc Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (54 commits)
  crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig
  crypto: serpent-sse2 - remove unneeded LRW/XTS #ifdefs
  crypto: serpent-sse2 - select LRW and XTS
  crypto: twofish-x86_64-3way - remove unneeded LRW/XTS #ifdefs
  crypto: twofish-x86_64-3way - select LRW and XTS
  crypto: xts - remove dependency on EXPERIMENTAL
  crypto: lrw - remove dependency on EXPERIMENTAL
  crypto: picoxcell - fix boolean and / or confusion
  crypto: caam - remove DECO access initialization code
  crypto: caam - fix polarity of "propagate error" logic
  crypto: caam - more desc.h cleanups
  crypto: caam - desc.h - convert spaces to tabs
  crypto: talitos - convert talitos_error to struct device
  crypto: talitos - remove NO_IRQ references
  crypto: talitos - fix bad kfree
  crypto: convert drivers/crypto/* to use module_platform_driver()
  char: hw_random: convert drivers/char/hw_random/* to use module_platform_driver()
  crypto: serpent-sse2 - should select CRYPTO_CRYPTD
  crypto: serpent - rename serpent.c to serpent_generic.c
  crypto: serpent - cleanup checkpatch errors and warnings
  ...
2012-01-10 22:01:27 -08:00
Jussi Kivilinna
08c70fc3a2 crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig
CRYPTO_GF128MUL does not select EXPERIMENTAL anymore so remove the
"(EXPERIMENTAL)" from its name.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:08 +08:00
Jussi Kivilinna
feaf0cfc26 crypto: serpent-sse2 - select LRW and XTS
serpent-sse2 uses functions from LRW and XTS modules, so selecting would appear
to be better option than using #ifdefs in serpent_sse2_glue.c to enable/disable
LRW and XTS features.

This also fixes build problem when serpent-sse2 would be build into kernel but
XTS/LRW are build as modules.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:07 +08:00
Jussi Kivilinna
e7cda5d27e crypto: twofish-x86_64-3way - select LRW and XTS
twofish-x86_64-3way uses functions from LRW and XTS modules, so selecting would
appear to be better option than using #ifdefs in twofish_glue_3way.c to
enable/disable LRW and XTS features.

This also fixes build problem when twofish-x86_64-3way would be build into
kernel but XTS/LRW are build as modules.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:06 +08:00
Jussi Kivilinna
5bcf8e6dd4 crypto: xts - remove dependency on EXPERIMENTAL
XTS has been EXPERIMENTAL since it was introduced in 2007. I'd say by now
it has seen enough testing to justify removal of EXPERIMENTAL tag.

CC: Rik Snel <rsnel@cube.dyndns.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:06 +08:00
Jussi Kivilinna
2470a2b2c3 crypto: lrw - remove dependency on EXPERIMENTAL
LRW has been EXPERIMENTAL since it was introduced in 2006. I'd say by now
it has seen enough testing to justify removal of EXPERIMENTAL tag.

CC: Rik Snel <rsnel@cube.dyndns.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:05 +08:00
Jussi Kivilinna
341975bf3a crypto: serpent-sse2 - should select CRYPTO_CRYPTD
Since serpent_sse2_glue.c uses cryptd, CRYPTO_SERPENT_SSE2_X86_64 and
CRYPTO_SERPENT_SSE2_586 should be selecting CRYPTO_CRYPTD.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-30 16:12:44 +08:00
Jussi Kivilinna
2deed786d9 crypto: serpent - rename serpent.c to serpent_generic.c
Now that serpent.c has been cleaned from checkpatch warnings,
we can do clean rename.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-30 16:12:44 +08:00
Jussi Kivilinna
7f4e3e3fa5 crypto: serpent - cleanup checkpatch errors and warnings
Do checkpatch fixes before rename to keep rename patch simple and clean.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-30 16:12:43 +08:00
Jussi Kivilinna
18482053f9 crypto: serpent-sse2 - add lrw support
Patch adds LRW support for serpent-sse2 by using lrw_crypt(). Patch has been
tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (serpent-sse2/serpent_generic speed ratios):

Benchmark results with tcrypt:

Intel Celeron T1600 (x86_64) (fam:6, model:15, step:13):
size    lrw-enc lrw-dec
16B     1.00x   0.96x
64B     1.01x   1.01x
256B    3.01x   2.97x
1024B   3.39x   3.33x
8192B   3.35x   3.33x

AMD Phenom II 1055T (x86_64) (fam:16, model:10):
size    lrw-enc lrw-dec
16B     0.98x   1.03x
64B     1.01x   1.04x
256B    2.10x   2.14x
1024B   2.28x   2.33x
8192B   2.30x   2.33x

Intel Atom N270 (i586):
size    lrw-enc lrw-dec
16B     0.97x   0.97x
64B     1.47x   1.50x
256B    1.72x   1.69x
1024B   1.88x   1.81x
8192B   1.84x   1.79x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:13:24 +08:00
Jussi Kivilinna
251496dbfc crypto: serpent - add 4-way parallel i586/SSE2 assembler implementation
Patch adds i586/SSE2 assembler implementation of serpent cipher. Assembler
functions crypt data in four block chunks.

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (serpent-sse2/serpent_generic speed ratios):

Intel Atom N270:

size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16      0.95x   1.12x   1.02x   1.07x   0.97x   0.98x
64      1.73x   1.82x   1.08x   1.82x   1.72x   1.73x
256     2.08x   2.00x   1.04x   2.07x   1.99x   2.01x
1024    2.28x   2.18x   1.05x   2.23x   2.17x   2.20x
8192    2.28x   2.13x   1.05x   2.23x   2.18x   2.20x

Full output:
 http://koti.mbnet.fi/axh/kernel/crypto/atom-n270/serpent-generic.txt
 http://koti.mbnet.fi/axh/kernel/crypto/atom-n270/serpent-sse2.txt

Userspace test results:

Encryption/decryption of sse2-i586 vs generic on Intel Atom N270:
 encrypt: 2.35x
 decrypt: 2.54x

Encryption/decryption of sse2-i586 vs generic on AMD Phenom II:
 encrypt: 1.82x
 decrypt: 2.51x

Encryption/decryption of sse2-i586 vs generic on Intel Xeon E7330:
 encrypt: 2.99x
 decrypt: 3.48x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:13:23 +08:00
Jussi Kivilinna
937c30d7f5 crypto: serpent - add 8-way parallel x86_64/SSE2 assembler implementation
Patch adds x86_64/SSE2 assembler implementation of serpent cipher. Assembler
functions crypt data in eigth block chunks (two 4 block chunk SSE2 operations
in parallel to improve performance on out-of-order CPUs). Glue code is based
on one from AES-NI implementation, so requests from irq context are redirected
to cryptd.

v2:
 - add missing include of linux/module.h
   (appearently crypto.h used to include module.h, which changed for 3.2 by
    commit 7c926402a7)

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (serpent-sse2/serpent_generic speed ratios):

AMD Phenom II 1055T (fam:16, model:10):

size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16B     1.03x   1.01x   1.03x   1.05x   1.00x   0.99x
64B     1.00x   1.01x   1.02x   1.04x   1.02x   1.01x
256B    2.34x   2.41x   0.99x   2.43x   2.39x   2.40x
1024B   2.51x   2.57x   1.00x   2.59x   2.56x   2.56x
8192B   2.50x   2.54x   1.00x   2.55x   2.57x   2.57x

Intel Celeron T1600 (fam:6, model:15, step:13):

size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16B     0.97x   0.97x   1.01x   1.01x   1.01x   1.02x
64B     1.00x   1.00x   1.00x   1.02x   1.01x   1.01x
256B    3.41x   3.35x   1.00x   3.39x   3.42x   3.44x
1024B   3.75x   3.72x   0.99x   3.74x   3.75x   3.75x
8192B   3.70x   3.68x   0.99x   3.68x   3.69x   3.69x

Full output:
 http://koti.mbnet.fi/axh/kernel/crypto/phenom-ii-1055t/serpent-generic.txt
 http://koti.mbnet.fi/axh/kernel/crypto/phenom-ii-1055t/serpent-sse2.txt
 http://koti.mbnet.fi/axh/kernel/crypto/celeron-t1600/serpent-generic.txt
 http://koti.mbnet.fi/axh/kernel/crypto/celeron-t1600/serpent-sse2.txt

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:13:23 +08:00
Jiri Kosina
2290c0d06d Merge branch 'master' into for-next
Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.
2011-11-13 20:55:53 +01:00
Paul Bolle
4da669a2e3 crypto: drop selects of bogus Kconfig symbol
Commits 2cdc6899a8 ("crypto: ghash - Add GHASH digest algorithm for
GCM") and 0e1227d356 ("crypto: ghash - Add PCLMULQDQ accelerated
implementation") added "select CRYPTO_SHASH" to two entries. That
Kconfig symbol doesn't exist. These two selects are nops. Drop them.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-11-13 20:49:02 +01:00
Linus Torvalds
42a0ddcd48 Merge git://github.com/herbertx/crypto
* git://github.com/herbertx/crypto:
  crypto: algapi - Fix build problem with NET disabled
  crypto: user - Fix rwsem leak in crypto_user
2011-11-11 23:40:02 -02:00
Herbert Xu
3acc84739d crypto: algapi - Fix build problem with NET disabled
The report functions use NLA_PUT so we need to ensure that NET
is enabled.

Reported-by: Luis Henriques <henrix@camandro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-11 06:57:06 +08:00
Valdis.Kletnieks@vt.edu
d19978f587 crypto: fix typo in crypto/Kconfig
Fix a typo in the Kconfig file help text.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 20:03:51 +08:00
Steffen Klassert
ce3fd840f5 crypto: Unlink and free instances when deleted
We leak the crypto instance when we unregister an instance with
crypto_del_alg(). Therefore we introduce crypto_unregister_instance()
to unlink the crypto instance from the template's instances list and
to free the recources of the instance properly.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 12:04:06 +08:00
Jarod Wilson
505172e11f crypto: ansi_cprng - enforce key != seed in fips mode
Apparently, NIST is tightening up its requirements for FIPS validation
with respect to RNGs. Its always been required that in fips mode, the
ansi cprng not be fed key and seed material that was identical, but
they're now interpreting FIPS 140-2, section AS07.09 as requiring that
the implementation itself must enforce the requirement. Easy fix, we
just do a memcmp of key and seed in fips_cprng_reset and call it a day.

v2: Per Neil's advice, ensure slen is sufficiently long before we
compare key and seed to avoid looking at potentially unallocated mem.

CC: Stephan Mueller <smueller@atsec.com>
CC: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 12:04:06 +08:00
Jussi Kivilinna
131f754161 crypto: tcrypt - add xts(twofish) tests
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:57:56 +08:00
Jussi Kivilinna
aed265b9fe crypto: testmgr - add xts(twofish) test vectors
Add test vectors for xts(twofish). These are generated from xts(twofish) test vectors.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:57:56 +08:00
Jussi Kivilinna
5209c07ac3 crypto: tcrypt - add xts(serpent) tests
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:57:56 +08:00
Jussi Kivilinna
18be20b944 crypto: testmgr - add xts(serpent) test vectors
Add test vectors for xts(serpent). These are generated from xts(aes) test vectors.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:57:56 +08:00
Jussi Kivilinna
ce0045561e crypto: xts: add interface for parallelized cipher implementations
Add xts_crypt() function that can be used by cipher implementations that can
benefit from parallelized cipher operations.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:56:06 +08:00
Jussi Kivilinna
f9d2691fc9 crypto: xts - use blocksize constant
XTS has fixed blocksize of 16. Define XTS_BLOCK_SIZE and use in place of
crypto_cipher_blocksize().

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:53:32 +08:00
Jussi Kivilinna
81559f9ad3 crypto: twofish-x86_64-3way - add lrw support
Patch adds LRW support for twofish-x86_64-3way by using lrw_crypt(). Patch has
been tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (twofish-3way/twofish-asm speed ratios):

Intel Celeron T1600 (fam:6, model:15, step:13):

size	lrw-enc	lrw-dec
16B	0.99x	1.00x
64B	1.17x	1.17x
256B	1.26x	1.27x
1024B	1.30x	1.31x
8192B	1.31x	1.32x

AMD Phenom II 1055T (fam:16, model:10):

size	lrw-enc	lrw-dec
16B	1.06x	1.01x
64B	1.08x	1.14x
256B	1.19x	1.20x
1024B	1.21x	1.22x
8192B	1.23x	1.24x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:53:32 +08:00
Jussi Kivilinna
bee3a90ef5 crypto: tcrypt - add lrw(twofish) tests
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:53:32 +08:00
Jussi Kivilinna
0b2a155106 crypto: testmgr - add lrw(twofish) test vectors
Add test vectors for lrw(twofish). These are generated from lrw(aes) test vectors.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:53:31 +08:00
Jussi Kivilinna
87aae4bfb2 crypto: tcrypt - add lrw(serpent) tests
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:52:19 +08:00
Jussi Kivilinna
d7bfc0fa31 crypto: testmgr - add lrw(serpent) test vectors
Add test vectors for lrw(serpent). These are generated from lrw(aes) test vectors.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:52:19 +08:00
Jussi Kivilinna
6c2205b8ff crypto: lrw - add interface for parallelized cipher implementions
Export gf128mul table initialization routines and add lrw_crypt() function
that can be used by cipher implementations that can benefit from parallelized
cipher operations.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:50:31 +08:00
Jussi Kivilinna
171c02048f crypto: lrw - split gf128mul table initialization from setkey
Split gf128mul initialization from setkey so that it can be used outside
lrw-module.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:43:01 +08:00
Jussi Kivilinna
4660720df6 crypto: lrw - use blocksize constant
LRW has fixed blocksize of 16. Define LRW_BLOCK_SIZE and use in place of
crypto_cipher_blocksize().

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:43:01 +08:00
Jussi Kivilinna
b884f8b901 crypto: lrw - fix memleak
LRW module leaks child cipher memory when init_tfm() fails because of child
block size not being 16.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:43:00 +08:00
Jussi Kivilinna
dd6eec242b crypto: serpent - rename module from serpent to serpent_generic
Rename module from serpent.ko to serpent_generic.ko and add module alias. This
is to allow assembler implementation to autoload on 'modprobe serpent'. Also
add driver_name and priority for serpent cipher.

CC: Dag Arne Osvik <osvik@ii.uib.no>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:43:00 +08:00
Jussi Kivilinna
bc83b8299c crypto: serpent - export common functions for x86_64/i386-sse2 assembler implementations
Serpent SSE2 assembler implementations only provide 4-way/8-way parallel
functions and need setkey and one-block encrypt/decrypt functions.

CC: Dag Arne Osvik <osvik@ii.uib.no>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:43:00 +08:00
Jussi Kivilinna
7fb7fe4469 crypto: tcrypt - add serpent speed tests
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:42:59 +08:00
Jussi Kivilinna
3f3baf359d crypto: tcrypt - add test_acipher_speed
Add test_acipher_speed for testing async block ciphers.

Also include tests for aes/des/des3/ede as these appear to have ablk_cipher
implementations available.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:42:59 +08:00
Jussi Kivilinna
9d25917d49 crypto: testmgr - add new serpent test vectors
Add new serpent tests for serpent_sse2 x86_64/i586 8-way/4-way code paths.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 11:42:59 +08:00
Linus Torvalds
32aaeffbd4 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include <linux/module.h>
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include <linux/module.h>
  net: sch_generic remove redundant use of <linux/module.h>
  net: inet_timewait_sock doesnt need <linux/module.h>
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
2011-11-06 19:44:47 -08:00
Jonathan Corbet
fb223c32b4 crypto: user - Fix rwsem leak in crypto_user
The list_empty case in crypto_alg_match() will return without calling
up_read() on crypto_alg_sem.  We could do the "goto out" routine, but the
function will clearly do the right thing with that test simply removed.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-02 09:15:16 +11:00
Linus Torvalds
dc47d3810c Merge git://github.com/herbertx/crypto
* git://github.com/herbertx/crypto: (48 commits)
  crypto: user - Depend on NET instead of selecting it
  crypto: user - Add dependency on NET
  crypto: talitos - handle descriptor not found in error path
  crypto: user - Initialise match in crypto_alg_match
  crypto: testmgr - add twofish tests
  crypto: testmgr - add blowfish test-vectors
  crypto: Make hifn_795x build depend on !ARCH_DMA_ADDR_T_64BIT
  crypto: twofish-x86_64-3way - fix ctr blocksize to 1
  crypto: blowfish-x86_64 - fix ctr blocksize to 1
  crypto: whirlpool - count rounds from 0
  crypto: Add userspace report for compress type algorithms
  crypto: Add userspace report for cipher type algorithms
  crypto: Add userspace report for rng type algorithms
  crypto: Add userspace report for pcompress type algorithms
  crypto: Add userspace report for nivaead type algorithms
  crypto: Add userspace report for aead type algorithms
  crypto: Add userspace report for givcipher type algorithms
  crypto: Add userspace report for ablkcipher type algorithms
  crypto: Add userspace report for blkcipher type algorithms
  crypto: Add userspace report for ahash type algorithms
  ...
2011-11-01 09:24:41 -07:00
Herbert Xu
5db017aa28 crypto: user - Depend on NET instead of selecting it
Selecting NET causes all sorts of issues, including a dependency
loop involving bluetooth.  This patch makes it a dependency instead.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-01 12:12:43 +11:00
Paul Gortmaker
4bb33cc890 crypto: add module.h to those files that are explicitly using it
Part of the include cleanups means that the implicit
inclusion of module.h via device.h is going away.  So
fix things up in advance.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:11 -04:00
Herbert Xu
ea8bdfcff1 crypto: user - Add dependency on NET
Since the configuration interface relies on netlink we need to
select NET.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-26 17:15:10 +02:00
Herbert Xu
e6ea64ece7 crypto: user - Initialise match in crypto_alg_match
We need to default match to 0 as otherwise it may lead to a false
positive.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:37:10 +02:00
Jussi Kivilinna
573da6208a crypto: testmgr - add twofish tests
Add tests for parallel twofish-x86_64-3way code paths.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:28:58 +02:00
Jussi Kivilinna
85b63e342c crypto: testmgr - add blowfish test-vectors
Add tests for parallel blowfish-x86_64 code paths.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:28:58 +02:00
Alexey Dobriyan
ac4385d250 crypto: whirlpool - count rounds from 0
rc[0] is unused because rounds are counted from 1.
Save an u64!

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:16 +02:00
Steffen Klassert
540b97c1dd crypto: Add userspace report for compress type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:12 +02:00
Steffen Klassert
07a5fa4abd crypto: Add userspace report for cipher type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:07 +02:00
Steffen Klassert
792608e9c2 crypto: Add userspace report for rng type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:06 +02:00
Steffen Klassert
a55465dca7 crypto: Add userspace report for pcompress type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:06 +02:00
Steffen Klassert
b735d0a915 crypto: Add userspace report for nivaead type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:06 +02:00
Steffen Klassert
6ad414fe71 crypto: Add userspace report for aead type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:06 +02:00
Steffen Klassert
3e29c1095a crypto: Add userspace report for givcipher type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:05 +02:00
Steffen Klassert
29ffc87640 crypto: Add userspace report for ablkcipher type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:05 +02:00
Steffen Klassert
50496a1fab crypto: Add userspace report for blkcipher type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:05 +02:00
Steffen Klassert
6238cbaec4 crypto: Add userspace report for ahash type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:04 +02:00
Steffen Klassert
f4d663ce63 crypto: Add userspace report for shash type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:04 +02:00
Steffen Klassert
6c5a86f529 crypto: Add userspace report for larval type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:04 +02:00
Steffen Klassert
b6aa63c09b crypto: Add a report function pointer to crypto_type
We add a report function pointer to struct crypto_type. This function
pointer is used from the crypto userspace configuration API to report
crypto algorithms to userspace.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:03 +02:00
Steffen Klassert
a38f7907b9 crypto: Add userspace configuration API
This patch adds a basic userspace configuration API for the crypto layer.
With this it is possible to instantiate, remove and to show crypto
algorithms from userspace.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:03 +02:00
Steffen Klassert
22e5b20be7 crypto: Export crypto_remove_final
The upcomming crypto usrerspace configuration api needs
to remove the spawns on top on an algorithm, so export
crypto_remove_final.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:03 +02:00
Steffen Klassert
89b596ba22 crypto: Export crypto_remove_spawns
The upcomming crypto usrerspace configuration api needs
to remove the spawns on top on an algorithm, so export
crypto_remove_spawns.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:03 +02:00
Steffen Klassert
64a947b133 crypto: Add a flag to identify crypto instances
The upcomming crypto user configuration api needs to identify
crypto instances. This patch adds a flag that is set if the
algorithm is an instance that is build from templates.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:01 +02:00
Jussi Kivilinna
8280daad43 crypto: twofish - add 3-way parallel x86_64 assembler implemention
Patch adds 3-way parallel x86_64 assembly implementation of twofish as new
module. New assembler functions crypt data in three blocks chunks, improving
cipher performance on out-of-order CPUs.

Patch has been tested with tcrypt and automated filesystem tests.

Summary of the tcrypt benchmarks:

Twofish 3-way-asm vs twofish asm (128bit 8kb block ECB)
 encrypt: 1.3x speed
 decrypt: 1.3x speed

Twofish 3-way-asm vs twofish asm (128bit 8kb block CBC)
 encrypt: 1.07x speed
 decrypt: 1.4x speed

Twofish 3-way-asm vs twofish asm (128bit 8kb block CTR)
 encrypt: 1.4x speed

Twofish 3-way-asm vs AES asm (128bit 8kb block ECB)
 encrypt: 1.0x speed
 decrypt: 1.0x speed

Twofish 3-way-asm vs AES asm (128bit 8kb block CBC)
 encrypt: 0.84x speed
 decrypt: 1.09x speed

Twofish 3-way-asm vs AES asm (128bit 8kb block CTR)
 encrypt: 1.15x speed

Full output:
 http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-twofish-3way-asm-x86_64.txt
 http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-twofish-asm-x86_64.txt
 http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-aes-asm-x86_64.txt

Tests were run on:
 vendor_id  : AuthenticAMD
 cpu family : 16
 model      : 10
 model name : AMD Phenom(tm) II X6 1055T Processor

Also userspace test were run on:
 vendor_id  : GenuineIntel
 cpu family : 6
 model      : 15
 model name : Intel(R) Xeon(R) CPU           E7330  @ 2.40GHz
 stepping   : 11

Userspace test results:

Encryption/decryption of twofish 3-way vs x86_64-asm on AMD Phenom II:
 encrypt: 1.27x
 decrypt: 1.25x

Encryption/decryption of twofish 3-way vs x86_64-asm on Intel Xeon E7330:
 encrypt: 1.36x
 decrypt: 1.36x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:23:08 +02:00
Jussi Kivilinna
ee5002a549 crypto: tcrypt - add ctr(twofish) speed test
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:23:08 +02:00
Nick Bowler
7ed47b7d14 crypto: ghash - Avoid null pointer dereference if no key is set
The ghash_update function passes a pointer to gf128mul_4k_lle which will
be NULL if ghash_setkey is not called or if the most recent call to
ghash_setkey failed to allocate memory.  This causes an oops.  Fix this
up by returning an error code in the null case.

This is trivially triggered from unprivileged userspace through the
AF_ALG interface by simply writing to the socket without setting a key.

The ghash_final function has a similar issue, but triggering it requires
a memory allocation failure in ghash_setkey _after_ at least one
successful call to ghash_update.

  BUG: unable to handle kernel NULL pointer dereference at 00000670
  IP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul]
  *pde = 00000000
  Oops: 0000 [#1] PREEMPT SMP
  Modules linked in: ghash_generic gf128mul algif_hash af_alg nfs lockd nfs_acl sunrpc bridge ipv6 stp llc

  Pid: 1502, comm: hashatron Tainted: G        W   3.1.0-rc9-00085-ge9308cf #32 Bochs Bochs
  EIP: 0060:[<d88c92d4>] EFLAGS: 00000202 CPU: 0
  EIP is at gf128mul_4k_lle+0x23/0x60 [gf128mul]
  EAX: d69db1f0 EBX: d6b8ddac ECX: 00000004 EDX: 00000000
  ESI: 00000670 EDI: d6b8ddac EBP: d6b8ddc8 ESP: d6b8dda4
   DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
  Process hashatron (pid: 1502, ti=d6b8c000 task=d6810000 task.ti=d6b8c000)
  Stack:
   00000000 d69db1f0 00000163 00000000 d6b8ddc8 c101a520 d69db1f0 d52aa000
   00000ff0 d6b8dde8 d88d310f d6b8a3f8 d52aa000 00001000 d88d502c d6b8ddfc
   00001000 d6b8ddf4 c11676ed d69db1e8 d6b8de24 c11679ad d52aa000 00000000
  Call Trace:
   [<c101a520>] ? kmap_atomic_prot+0x37/0xa6
   [<d88d310f>] ghash_update+0x85/0xbe [ghash_generic]
   [<c11676ed>] crypto_shash_update+0x18/0x1b
   [<c11679ad>] shash_ahash_update+0x22/0x36
   [<c11679cc>] shash_async_update+0xb/0xd
   [<d88ce0ba>] hash_sendpage+0xba/0xf2 [algif_hash]
   [<c121b24c>] kernel_sendpage+0x39/0x4e
   [<d88ce000>] ? 0xd88cdfff
   [<c121b298>] sock_sendpage+0x37/0x3e
   [<c121b261>] ? kernel_sendpage+0x4e/0x4e
   [<c10b4dbc>] pipe_to_sendpage+0x56/0x61
   [<c10b4e1f>] splice_from_pipe_feed+0x58/0xcd
   [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
   [<c10b51f5>] __splice_from_pipe+0x36/0x55
   [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
   [<c10b6383>] splice_from_pipe+0x51/0x64
   [<c10b63c2>] ? default_file_splice_write+0x2c/0x2c
   [<c10b63d5>] generic_splice_sendpage+0x13/0x15
   [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
   [<c10b527f>] do_splice_from+0x5d/0x67
   [<c10b6865>] sys_splice+0x2bf/0x363
   [<c129373b>] ? sysenter_exit+0xf/0x16
   [<c104dc1e>] ? trace_hardirqs_on_caller+0x10e/0x13f
   [<c129370c>] sysenter_do_call+0x12/0x32
  Code: 83 c4 0c 5b 5e 5f c9 c3 55 b9 04 00 00 00 89 e5 57 8d 7d e4 56 53 8d 5d e4 83 ec 18 89 45 e0 89 55 dc 0f b6 70 0f c1 e6 04 01 d6 <f3> a5 be 0f 00 00 00 4e 89 d8 e8 48 ff ff ff 8b 45 e0 89 da 0f
  EIP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul] SS:ESP 0068:d6b8dda4
  CR2: 0000000000000670
  ---[ end trace 4eaa2a86a8e2da24 ]---
  note: hashatron[1502] exited with preempt_count 1
  BUG: scheduling while atomic: hashatron/1502/0x10000002
  INFO: lockdep is turned off.
  [...]

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Cc: stable@kernel.org [2.6.37+]
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 13:18:42 +02:00
Jussi Kivilinna
64b94ceae8 crypto: blowfish - add x86_64 assembly implementation
Patch adds x86_64 assembly implementation of blowfish. Two set of assembler
functions are provided. First set is regular 'one-block at time'
encrypt/decrypt functions. Second is 'four-block at time' functions that
gain performance increase on out-of-order CPUs. Performance of 4-way
functions should be equal to 1-way functions with in-order CPUs.

Summary of the tcrypt benchmarks:

Blowfish assembler vs blowfish C (256bit 8kb block ECB)
encrypt: 2.2x speed
decrypt: 2.3x speed

Blowfish assembler vs blowfish C (256bit 8kb block CBC)
encrypt: 1.12x speed
decrypt: 2.5x speed

Blowfish assembler vs blowfish C (256bit 8kb block CTR)
encrypt: 2.5x speed

Full output:
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-blowfish-asm-x86_64.txt
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-blowfish-c-x86_64.txt

Tests were run on:
 vendor_id	: AuthenticAMD
 cpu family	: 16
 model		: 10
 model name	: AMD Phenom(tm) II X6 1055T Processor
 stepping	: 0

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-09-22 21:25:26 +10:00
Jussi Kivilinna
7d47b86cfe crypto: tcrypt - add ctr(blowfish) speed test
Add ctr(blowfish) speed test to receive results for blowfish x86_64 assembly
patch.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-09-22 21:25:26 +10:00
Jussi Kivilinna
3f2a5d2d42 crypto: blowfish - rename C-version to blowfish_generic
Rename blowfish to blowfish_generic so that assembler versions of blowfish
cipher can autoload. Module alias 'blowfish' is added.

Also fix checkpatch warnings.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-09-22 21:25:26 +10:00
Jussi Kivilinna
52ba867c8c crypto: blowfish - split generic and common c code
Patch splits up the blowfish crypto routine into a common part (key setup)
which will be used by blowfish crypto modules (x86_64 assembly and generic-c).

Also fixes errors/warnings reported by checkpatch.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-09-22 21:25:25 +10:00
Herbert Xu
b2bac6acf8 crypto: cryptd - Use subsys_initcall to prevent races with aesni
As cryptd is depeneded on by other algorithms such as aesni-intel,
it needs to be registered before them.  When everything is built
as modules, this occurs naturally.  However, for this to work when
they are built-in, we need to use subsys_initcall in cryptd.

Tested-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-20 16:08:03 +08:00
Mathias Krause
66be895158 crypto: sha1 - SSSE3 based SHA1 implementation for x86-64
This is an assembler implementation of the SHA1 algorithm using the
Supplemental SSE3 (SSSE3) instructions or, when available, the
Advanced Vector Extensions (AVX).

Testing with the tcrypt module shows the raw hash performance is up to
2.3 times faster than the C implementation, using 8k data blocks on a
Core 2 Duo T5500. For the smalest data set (16 byte) it is still 25%
faster.

Since this implementation uses SSE/YMM registers it cannot safely be
used in every situation, e.g. while an IRQ interrupts a kernel thread.
The implementation falls back to the generic SHA1 variant, if using
the SSE/YMM registers is not possible.

With this algorithm I was able to increase the throughput of a single
IPsec link from 344 Mbit/s to 464 Mbit/s on a Core 2 Quad CPU using
the SSSE3 variant -- a speedup of +34.8%.

Saving and restoring SSE/YMM state might make the actual throughput
fluctuate when there are FPU intensive userland applications running.
For example, meassuring the performance using iperf2 directly on the
machine under test gives wobbling numbers because iperf2 uses the FPU
for each packet to check if the reporting interval has expired (in the
above test I got min/max/avg: 402/484/464 MBit/s).

Using this algorithm on a IPsec gateway gives much more reasonable and
stable numbers, albeit not as high as in the directly connected case.
Here is the result from an RFC 2544 test run with a EXFO Packet Blazer
FTB-8510:

 frame size    sha1-generic     sha1-ssse3    delta
    64 byte     37.5 MBit/s    37.5 MBit/s     0.0%
   128 byte     56.3 MBit/s    62.5 MBit/s   +11.0%
   256 byte     87.5 MBit/s   100.0 MBit/s   +14.3%
   512 byte    131.3 MBit/s   150.0 MBit/s   +14.2%
  1024 byte    162.5 MBit/s   193.8 MBit/s   +19.3%
  1280 byte    175.0 MBit/s   212.5 MBit/s   +21.4%
  1420 byte    175.0 MBit/s   218.7 MBit/s   +25.0%
  1518 byte    150.0 MBit/s   181.2 MBit/s   +20.8%

The throughput for the largest frame size is lower than for the
previous size because the IP packets need to be fragmented in this
case to make there way through the IPsec tunnel.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Maxim Locktyukhin <maxim.locktyukhin@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:29 +08:00
Mathias Krause
7c390170b4 crypto: sha1 - export sha1_update for reuse
Export the update function as crypto_sha1_update() to not have the need
to reimplement the same algorithm for each SHA-1 implementation. This
way the generic SHA-1 implementation can be used as fallback for other
implementations that fail to run under certain circumstances, like the
need for an FPU context while executing in IRQ context.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:28 +08:00
David S. Miller
bc0b96b54a crypto: Move md5_transform to lib/md5.c
We are going to use this for TCP/IP sequence number and fragment ID
generation.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-06 18:32:45 -07:00
Arun Sharma
60063497a9 atomic: use <linux/atomic.h>
This allows us to move duplicated code in <asm/atomic.h>
(atomic_inc_not_zero() for now) to <linux/atomic.h>

Signed-off-by: Arun Sharma <asharma@fb.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 16:49:47 -07:00
Linus Torvalds
d3ec4844d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
  fs: Merge split strings
  treewide: fix potentially dangerous trailing ';' in #defined values/expressions
  uwb: Fix misspelling of neighbourhood in comment
  net, netfilter: Remove redundant goto in ebt_ulog_packet
  trivial: don't touch files that are removed in the staging tree
  lib/vsprintf: replace link to Draft by final RFC number
  doc: Kconfig: `to be' -> `be'
  doc: Kconfig: Typo: square -> squared
  doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
  drivers/net: static should be at beginning of declaration
  drivers/media: static should be at beginning of declaration
  drivers/i2c: static should be at beginning of declaration
  XTENSA: static should be at beginning of declaration
  SH: static should be at beginning of declaration
  MIPS: static should be at beginning of declaration
  ARM: static should be at beginning of declaration
  rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
  Update my e-mail address
  PCIe ASPM: forcedly -> forcibly
  gma500: push through device driver tree
  ...

Fix up trivial conflicts:
 - arch/arm/mach-ep93xx/dma-m2p.c (deleted)
 - drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
 - drivers/net/r8169.c (just context changes)
2011-07-25 13:56:39 -07:00
Linus Torvalds
a23a334bd5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (34 commits)
  crypto: caam - ablkcipher support
  crypto: caam - faster aead implementation
  crypto: caam - structure renaming
  crypto: caam - shorter names
  crypto: talitos - don't bad_key in ablkcipher setkey
  crypto: talitos - remove unused giv from ablkcipher methods
  crypto: talitos - don't set done notification in hot path
  crypto: talitos - ensure request ordering within a single tfm
  crypto: gf128mul - fix call to memset()
  crypto: s390 - support hardware accelerated SHA-224
  crypto: algif_hash - Handle initial af_alg_make_sg error correctly
  crypto: sha1_generic - use SHA1_BLOCK_SIZE
  hwrng: ppc4xx - add support for ppc4xx TRNG
  crypto: crypto4xx - Perform read/modify/write on device control register
  crypto: caam - fix build warning when DEBUG_FS not configured
  crypto: arc4 - Fixed coding style issues
  crypto: crc32c - Fixed coding style issue
  crypto: omap-sham - do not schedule tasklet if there is no active requests
  crypto: omap-sham - clear device flags when finishing request
  crypto: omap-sham - irq handler must not clear error code
  ...
2011-07-24 09:05:32 -07:00
Michael Witten
35ed4b35be doc: Kconfig: to be' -> be'
Also, a comma was inserted to offset a modifier.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-11 14:23:35 +02:00
Mathias Krause
625426633d crypto: gf128mul - fix call to memset()
In gf128mul_lle() and gf128mul_bbe() r isn't completely initialized with
zero because the size argument passed to memset() is the size of the
pointer, not the structure it points to.

Luckily there are no in-kernel users of those functions so the ABI
change implied by this fix should break no existing code.

Based on a patch by the PaX Team.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: PaX Team <pageexec@freemail.hu>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-08 17:21:21 +08:00
David S. Miller
e12fe68ce3 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-07-05 23:23:37 -07:00
Herbert Xu
269230e7c5 crypto: algif_hash - Handle initial af_alg_make_sg error correctly
When the first call to af_alg_make_sg fails, we may return garbage
instead of the real error.  This patch fixes it by setting the error
if "copied" is zero.

Based on a patch by Jesper Juhl.

Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:06 +08:00
Mandeep Singh Baines
36ca239b24 crypto: sha1_generic - use SHA1_BLOCK_SIZE
Modify sha1_update to use SHA1_BLOCK_SIZE.

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:06 +08:00
Mati Vait
cfa2b54eca crypto: arc4 - Fixed coding style issues
Fixed coding style issues: unnecessary spaces, parentheses on wrong lines.

Signed-off-by: Mati Vait <mativait@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:05 +08:00
Mati Vait
fae366401b crypto: crc32c - Fixed coding style issue
Removed coding style issue: space before tabs.

Signed-off-by: Mati Vait <mativait@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:05 +08:00
Richard Weinberger
8af00860c9 crypto: UML build fixes
CRYPTO_GHASH_CLMUL_NI_INTEL and CRYPTO_AES_NI_INTEL cannot be used
on UML.
Commit 3e02e5cb and 54b6a1b enabled them by accident.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:01 +08:00
Jarod Wilson
5165e5b112 crypto: testmgr - add xts-aes-256 self-test
FIPS compliance requires a known-answer self-test for all approved
cipher and mode combinations, for all valid key sizes. Presently,
there are only self-tests for xts-aes-128. This adds a 256-bit one,
pulled from the same reference document, which should satisfy the
requirement.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:00 +08:00
David S. Miller
7ab24bfdf9 net+crypto: Use vmalloc for zlib inflate buffers.
They are 64K and result in order-4 allocations, even with SLUB.

Therefore, just like we always have for the deflate buffers, use
vmalloc.

Reported-by: Martin Jackson <mjackson220.list@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-29 05:48:41 -07:00
Alexey Dobriyan
b7f080cfe2 net: remove mm.h inclusion from netdevice.h
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually).

To prevent mm.h inclusion via other channels also extract "enum dma_data_direction"
definition into separate header. This tiny piece is what gluing netdevice.h with mm.h
via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h".
Removal of mm.h from scatterlist.h was tried and was found not feasible
on most archs, so the link was cutoff earlier.

Hope people are OK with tiny include file.

Note, that mm_types.h is still dragged in, but it is a separate story.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21 19:17:20 -07:00
Linus Torvalds
052497553e Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (45 commits)
  crypto: caam - add support for sha512 variants of existing AEAD algorithms
  crypto: caam - remove unused authkeylen from caam_ctx
  crypto: caam - fix decryption shared vs. non-shared key setting
  crypto: caam - platform_bus_type migration
  crypto: aesni-intel - fix aesni build on i386
  crypto: aesni-intel - Merge with fpu.ko
  crypto: mv_cesa - make count_sgs() null-pointer proof
  crypto: mv_cesa - copy remaining bytes to SRAM only when needed
  crypto: mv_cesa - move digest state initialisation to a better place
  crypto: mv_cesa - fill inner/outer IV fields only in HMAC case
  crypto: mv_cesa - refactor copy_src_to_buf()
  crypto: mv_cesa - no need to save digest state after the last chunk
  crypto: mv_cesa - print a warning when registration of AES algos fail
  crypto: mv_cesa - drop this call to mv_hash_final from mv_hash_finup
  crypto: mv_cesa - the descriptor pointer register needs to be set just once
  crypto: mv_cesa - use ablkcipher_request_cast instead of the manual container_of
  crypto: caam - fix printk recursion for long error texts
  crypto: caam - remove unused keylen from session context
  hwrng: amd - enable AMD hw rnd driver for Maple PPC boards
  hwrng: amd - manage resource allocation
  ...
2011-05-20 17:24:14 -07:00
Andy Lutomirski
b23b645165 crypto: aesni-intel - Merge with fpu.ko
Loading fpu without aesni-intel does nothing.  Loading aesni-intel
without fpu causes modes like xts to fail.  (Unloading
aesni-intel will restore those modes.)

One solution would be to make aesni-intel depend on fpu, but it
seems cleaner to just combine the modules.

This is probably responsible for bugs like:
https://bugzilla.redhat.com/show_bug.cgi?id=589390

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-16 15:12:47 +10:00
Jan Glauber
9996e3421c crypto: tcrypt - CTR mode speed test for AES
Add the CTR mode speed test for AES.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-04 15:06:37 +10:00
Puneet Saxena
ba0e14acc4 crypto: testmgr - add support for aes ofb mode
the fix add testcase for testing aes ofb mode.

Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-04 15:04:10 +10:00
Lucas De Marchi
25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Jim Keniston
565d76cb7d zlib: slim down zlib_deflate() workspace when possible
Instead of always creating a huge (268K) deflate_workspace with the
maximum compression parameters (windowBits=15, memLevel=8), allow the
caller to obtain a smaller workspace by specifying smaller parameter
values.

For example, when capturing oops and panic reports to a medium with
limited capacity, such as NVRAM, compression may be the only way to
capture the whole report.  In this case, a small workspace (24K works
fine) is a win, whether you allocate the workspace when you need it (i.e.,
during an oops or panic) or at boot time.

I've verified that this patch works with all accepted values of windowBits
(positive and negative), memLevel, and compression level.

Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22 17:44:17 -07:00
Linus Torvalds
7a6362800c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1480 commits)
  bonding: enable netpoll without checking link status
  xfrm: Refcount destination entry on xfrm_lookup
  net: introduce rx_handler results and logic around that
  bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag
  bonding: wrap slave state work
  net: get rid of multiple bond-related netdevice->priv_flags
  bonding: register slave pointer for rx_handler
  be2net: Bump up the version number
  be2net: Copyright notice change. Update to Emulex instead of ServerEngines
  e1000e: fix kconfig for crc32 dependency
  netfilter ebtables: fix xt_AUDIT to work with ebtables
  xen network backend driver
  bonding: Improve syslog message at device creation time
  bonding: Call netif_carrier_off after register_netdevice
  bonding: Incorrect TX queue offset
  net_sched: fix ip_tos2prio
  xfrm: fix __xfrm_route_forward()
  be2net: Fix UDP packet detected status in RX compl
  Phonet: fix aligned-mode pipe socket buffer header reserve
  netxen: support for GbE port settings
  ...

Fix up conflicts in drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
with the staging updates.
2011-03-16 16:29:25 -07:00
Steffen Klassert
a5079d084f crypto: authencesn - Add algorithm to handle IPsec extended sequence numbers
ESP with separate encryption/authentication algorithms needs a special
treatment for the associated data. This patch add a new algorithm that
handles esp with extended sequence numbers.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 20:22:27 -07:00
David Sterba
f07ef1de9b crypto: tcrypt - do not attempt to write to readonly variable
Commit da7f033ddc (”crypto: cryptomgr - Add test infrastructure”) added a
const to variable which is later used as target buffer of memcpy.

crypto/tcrypt.c:217:12: warning: passing 'const char (*)[128]' to parameter of type 'void *' discards qualifiers
                                memset(&iv, 0xff, iv_len);


crypto/tcrypt.c:test_cipher_speed()

-       unsigned char *key, iv[128];
+       const char *key, iv[128];
...
        memset(&iv, 0xff, iv_len);

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-03-04 15:28:52 +08:00
Herbert Xu
bd1f2996b4 crypto: sha1 - Add test vector to test partial block processing
In light of the recent discovery of the bug with partial block
processing on s390, we need best test coverage for that.  This
patch adds a test vector for SHA1 that should catch such problems.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-02-17 14:24:45 +11:00
Jarod Wilson
18c0ebd2d8 crypto: testmgr - mark ghash as fips_allowed
A self-test failure in fips mode means a panic. Well, gcm(aes)
self-tests currently fail in fips mode, as gcm is dependent on ghash,
which semi-recently got self-test vectors added, but wasn't marked as a
fips_allowed algorithm. Because of gcm's dependence on what is now seen
as a non-fips_allowed algorithm, its self-tests refuse to run.
Previously, ghash got a pass in fips mode, due to the lack of any test
vectors at all, and thus gcm self-tests were able to run. After this
patch, a 'modprobe tcrypt mode=35' no longer panics in fips mode, and
successful self-test of gcm(aes) is reported.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-01-29 15:14:35 +11:00
Jarod Wilson
2918aa8d1d crypto: testmgr - mark xts(aes) as fips_allowed
We (Red Hat) are intending to include dm-crypt functionality, using
xts(aes) for disk encryption, as part of an upcoming FIPS-140-2
certification effort, and xts(aes) *is* on the list of possible
mode/cipher combinations that can be certified. To make that possible, we
need to mark xts(aes) as fips_allowed in the crypto subsystem.

A 'modprobe tcrypt mode=10' in fips mode shows xts(aes) self-tests
passing successfully after this change.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-01-29 15:14:01 +11:00
Davidlohr Bueso
33c7c0fb20 crypto: skcipher - remove redundant NULL check
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-01-29 15:09:43 +11:00
Linus Torvalds
27d189c02b Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits)
  hwrng: via_rng - Fix memory scribbling on some CPUs
  crypto: padlock - Move padlock.h into include/crypto
  hwrng: via_rng - Fix asm constraints
  crypto: n2 - use __devexit not __exit in n2_unregister_algs
  crypto: mark crypto workqueues CPU_INTENSIVE
  crypto: mv_cesa - dont return PTR_ERR() of wrong pointer
  crypto: ripemd - Set module author and update email address
  crypto: omap-sham - backlog handling fix
  crypto: gf128mul - Remove experimental tag
  crypto: af_alg - fix af_alg memory_allocated data type
  crypto: aesni-intel - Fixed build with binutils 2.16
  crypto: af_alg - Make sure sk_security is initialized on accept()ed sockets
  net: Add missing lockdep class names for af_alg
  include: Install linux/if_alg.h for user-space crypto API
  crypto: omap-aes - checkpatch --file warning fixes
  crypto: omap-aes - initialize aes module once per request
  crypto: omap-aes - unnecessary code removed
  crypto: omap-aes - error handling implementation improved
  crypto: omap-aes - redundant locking is removed
  crypto: omap-aes - DMA initialization fixes for OMAP off mode
  ...
2011-01-13 10:25:58 -08:00
Tejun Heo
c73b7d02da crypto: mark crypto workqueues CPU_INTENSIVE
kcrypto_wq and pcrypt->wq's are used to run ciphers and may consume
considerable amount of CPU cycles.  Mark both as CPU_INTENSIVE so that
they don't block other work items.

As the workqueues are primarily used to burn CPU cycles, concurrency
levels shouldn't matter much and are left at 1.  A higher value may be
beneficial and needs investigation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-01-04 23:34:08 +11:00
Adrian-Ken Rueegsegger
3181c22587 crypto: ripemd - Set module author and update email address
Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-01-04 23:34:03 +11:00
Herbert Xu
8ad225e8e4 crypto: gf128mul - Remove experimental tag
This feature no longer needs the experimental tag.

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-28 22:56:26 +11:00
Randy Dunlap
0686952458 crypto: af_alg - fix af_alg memory_allocated data type
Change data type to fix warning:

crypto/af_alg.c:35: warning: initialization from incompatible pointer type

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-21 22:22:40 +11:00
Miloslav Trmač
507cad355f crypto: af_alg - Make sure sk_security is initialized on accept()ed sockets
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-08 14:36:19 +08:00
Steffen Klassert
c920fa6051 crypto: Use scatterwalk_crypto_chain
Use scatterwalk_crypto_chain in favor of locally defined chaining functions.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-02 14:47:16 +08:00
Herbert Xu
bc97e57eb2 crypto: algif_skcipher - Handle unaligned receive buffer
As it is if user-space passes through a receive buffer that's not
aligned to to the cipher block size, we'll end up encrypting or
decrypting a partial block which causes a spurious EINVAL to be
returned.

This patch fixes this by moving the partial block test after the
af_alg_make_sg call.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-30 17:04:31 +08:00
Herbert Xu
0f6bb83cb1 crypto: algif_skcipher - Fixed overflow when sndbuf is page aligned
When sk_sndbuf is not a multiple of PAGE_SIZE, the limit tests
in sendmsg fail as the limit variable becomes negative and we're
using an unsigned comparison.

The same thing can happen if sk_sndbuf is lowered after a sendmsg
call.

This patch fixes this by always taking the signed maximum of limit
and 0 before we perform the comparison.

It also rounds the value of sk_sndbuf down to a multiple of PAGE_SIZE
so that we don't end up allocating a page only to use a small number
of bytes in it because we're bound by sk_sndbuf.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-30 16:49:02 +08:00
Herbert Xu
7451708f39 crypto: af_alg - Add dependency on NET
Add missing dependency on NET since we require sockets for our
interface.

Should really be a select but kconfig doesn't like that:

net/Kconfig:6:error: found recursive dependency: NET -> NETWORK_FILESYSTEMS -> AFS_FS -> AF_RXRPC -> CRYPTO -> CRYPTO_USER_API_HASH -> CRYPTO_USER_API -> NET

Reported-by: Zimny Lech <napohybelskurwysynom2010@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-29 22:56:03 +08:00
Herbert Xu
c762be6375 crypto: algif_skcipher - Pass on error from af_alg_make_sg
The error returned from af_alg_make_sg is currently lost and we
always pass on -EINVAL.  This patch pases on the underlying error.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-28 16:28:01 +08:00
Mathias Krause
0d258efb6a crypto: aesni-intel - Ported implementation to x86-32
The AES-NI instructions are also available in legacy mode so the 32-bit
architecture may profit from those, too.

To illustrate the performance gain here's a short summary of a dm-crypt
speed test on a Core i7 M620 running at 2.67GHz comparing both assembler
implementations:

x86:                   i568       aes-ni    delta
ECB, 256 bit:     93.8 MB/s   123.3 MB/s   +31.4%
CBC, 256 bit:     84.8 MB/s   262.3 MB/s  +209.3%
LRW, 256 bit:    108.6 MB/s   222.1 MB/s  +104.5%
XTS, 256 bit:    105.0 MB/s   205.5 MB/s   +95.7%

Additionally, due to some minor optimizations, the 64-bit version also
got a minor performance gain as seen below:

x86-64:           old impl.    new impl.    delta
ECB, 256 bit:    121.1 MB/s   123.0 MB/s    +1.5%
CBC, 256 bit:    285.3 MB/s   290.8 MB/s    +1.9%
LRW, 256 bit:    263.7 MB/s   265.3 MB/s    +0.6%
XTS, 256 bit:    251.1 MB/s   255.3 MB/s    +1.7%

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27 16:34:46 +08:00
Tracey Dent
21ea28abcf crypto: Makefile clean up
Changed Makefile to use <modules>-y instead of <modules>-objs.

Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27 16:32:57 +08:00
Joe Perches
c8484594ae crypto: Use vzalloc
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27 16:30:39 +08:00
Herbert Xu
8ff590903d crypto: algif_skcipher - User-space interface for skcipher operations
This patch adds the af_alg plugin for symmetric key ciphers,
corresponding to the ablkcipher kernel operation type.

Keys can optionally be set through the setsockopt interface.

Once a sendmsg call occurs without MSG_MORE no further writes
may be made to the socket until all previous data has been read.

IVs and and whether encryption/decryption is performed can be
set through the setsockopt interface or as a control message
to sendmsg.

The interface is completely synchronous, all operations are
carried out in recvmsg(2) and will complete prior to the system
call returning.

The splice(2) interface support reading the user-space data directly
without copying (except that the Crypto API itself may copy the data
if alignment is off).

The recvmsg(2) interface supports directly writing to user-space
without additional copying, i.e., the kernel crypto interface will
receive the user-space address as its output SG list.

Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
2010-11-26 20:53:59 +08:00
Herbert Xu
fe869cdb89 crypto: algif_hash - User-space interface for hash operations
This patch adds the af_alg plugin for hash, corresponding to
the ahash kernel operation type.

Keys can optionally be set through the setsockopt interface.

Each sendmsg call will finalise the hash unless sent with a MSG_MORE
flag.

Partial hash states can be cloned using accept(2).

The interface is completely synchronous, all operations will
complete prior to the system call returning.

Both sendmsg(2) and splice(2) support reading the user-space
data directly without copying (except that the Crypto API itself
may copy the data if alignment is off).

For now only the splice(2) interface supports performing digest
instead of init/update/final.  In future the sendmsg(2) interface
will also be modified to use digest/finup where possible so that
hardware that cannot return a partial hash state can still benefit
from this interface.

Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Martin Willi <martin@strongswan.org>
2010-11-19 17:47:58 +08:00
Herbert Xu
03c8efc1ff crypto: af_alg - User-space interface for Crypto API
This patch creates the backbone of the user-space interface for
the Crypto API, through a new socket family AF_ALG.

Each session corresponds to one or more connections obtained from
that socket.  The number depends on the number of inputs/outputs
of that particular type of operation.  For most types there will
be a s ingle connection/file descriptor that is used for both input
and output.  AEAD is one of the few that require two inputs.

Each algorithm type will provide its own implementation that plugs
into af_alg.  They're keyed using a string such as "skcipher" or
"hash".

IOW this patch only contains the boring bits that is required
to hold everything together.

Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Martin Willi <martin@strongswan.org>
2010-11-19 17:47:57 +08:00
Adrian Hoban
69435b94d0 crypto: rfc4106 - Extending the RC4106 AES-GCM test vectors
Updated RFC4106 AES-GCM testing. Some test vectors were taken from
http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/
gcm/gcm-test-vectors.tar.gz

Signed-off-by: Adrian Hoban <adrian.hoban@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Aidan O'Mahony <aidan.o.mahony@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-13 21:47:56 +09:00
Nicolas Kaiser
895be15745 crypto: cast5 - simplify if-statements
I noticed that by factoring out common rounds from the
branches of the if-statements in the encryption and
decryption functions, the executable file size goes down
significantly, for crypto/cast5.ko from 26688 bytes
to 24336 bytes (amd64).

On my test system, I saw a slight speedup. This is the
first time I'm doing such a benchmark - I found a similar
one on the crypto mailing list, and I hope I did it right?

Before:
# cryptsetup create dm-test /dev/hda2 -c cast5-cbc-plain -s 128
Passsatz eingeben: 
# dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50
52428800 Bytes (52 MB) kopiert, 2,43484 s, 21,5 MB/s
# dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50
52428800 Bytes (52 MB) kopiert, 2,4089 s, 21,8 MB/s
# dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50
52428800 Bytes (52 MB) kopiert, 2,41091 s, 21,7 MB/s

After:
# cryptsetup create dm-test /dev/hda2 -c cast5-cbc-plain -s 128
Passsatz eingeben: 
# dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50
52428800 Bytes (52 MB) kopiert, 2,38128 s, 22,0 MB/s
# dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50
52428800 Bytes (52 MB) kopiert, 2,29486 s, 22,8 MB/s
# dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50
52428800 Bytes (52 MB) kopiert, 2,37162 s, 22,1 MB/s

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-13 21:47:55 +09:00
Steffen Klassert
e2b3483541 crypto: pcrypt - Fix use after free on padata_free
kobject_put is called from padata_free for the padata kobject.
The kobject's release function frees the padata instance,
so don't call kobject_put for the padata kobject from pcrypt.

Reported-and-tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:58:46 -08:00
Herbert Xu
90246e79af crypto: hash - Fix async import on shash algorithm
The function shash_async_import did not initialise the descriptor
correctly prior to calling the underlying shash import function.

This patch adds the required initialisation.

Reported-by: Miloslav Trmac <mitr@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-04 14:48:37 -04:00