Commit graph

101 commits

Author SHA1 Message Date
Huang Ying
2cf4ac8beb crypto: aes-ni - Add support for more modes
Because kernel_fpu_begin() and kernel_fpu_end() operations are too
slow, the performance gain of general mode implementation + aes-aesni
is almost all compensated.

The AES-NI support for more modes are implemented as follow:

- Add a new AES algorithm implementation named __aes-aesni without
  kernel_fpu_begin/end()

- Use fpu(<mode>(AES)) to provide kenrel_fpu_begin/end() invoking

- Add <mode>(AES) ablkcipher, which uses cryptd(fpu(<mode>(AES))) to
  defer cryption to cryptd context in soft_irq context.

Now the ctr, lrw, pcbc and xts support are added.

Performance testing based on dm-crypt shows that cryption time can be
reduced to 50% of general mode implementation + aes-aesni implementation.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02 14:04:16 +10:00
Huang Ying
150c7e8552 crypto: fpu - Add template for blkcipher touching FPU
Blkcipher touching FPU need to be enclosed by kernel_fpu_begin() and
kernel_fpu_end(). If they are invoked in cipher algorithm
implementation, they will be invoked for each block, so that
performance will be hurt, because they are "slow" operations. This
patch implements "fpu" template, which makes these operations to be
invoked for each request.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02 14:04:15 +10:00
Geert Uytterhoeven
0c01aed50d crypto: testmgr - add zlib test
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-03-04 15:42:15 +08:00
Geert Uytterhoeven
bf68e65ec9 crypto: zlib - New zlib crypto module, using pcomp
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-03-04 15:16:19 +08:00
Geert Uytterhoeven
a1d2f09544 crypto: compress - Add pcomp interface
The current "comp" crypto interface supports one-shot (de)compression only,
i.e. the whole data buffer to be (de)compressed must be passed at once, and
the whole (de)compressed data buffer will be received at once.
In several use-cases (e.g. compressed file systems that store files in big
compressed blocks), this workflow is not suitable.
Furthermore, the "comp" type doesn't provide for the configuration of
(de)compression parameters, and always allocates workspace memory for both
compression and decompression, which may waste memory.

To solve this, add a "pcomp" partial (de)compression interface that provides
the following operations:
  - crypto_compress_{init,update,final}() for compression,
  - crypto_decompress_{init,update,final}() for decompression,
  - crypto_{,de}compress_setup(), to configure (de)compression parameters
    (incl. allocating workspace memory).

The (de)compression methods take a struct comp_request, which was mimicked
after the z_stream object in zlib, and contains buffer pointer and length
pairs for input and output.

The setup methods take an opaque parameter pointer and length pair. Parameters
are supposed to be encoded using netlink attributes, whose meanings depend on
the actual (name of the) (de)compression algorithm.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-03-04 15:05:33 +08:00
Huang Ying
0a2e821d62 crypto: chainiv - Use kcrypto_wq instead of keventd_wq
keventd_wq has potential starvation problem, so use dedicated
kcrypto_wq instead.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-19 14:44:02 +08:00
Huang Ying
254eff7714 crypto: cryptd - Per-CPU thread implementation based on kcrypto_wq
Original cryptd thread implementation has scalability issue, this
patch solve the issue with a per-CPU thread implementation.

struct cryptd_queue is defined to be a per-CPU queue, which holds one
struct cryptd_cpu_queue for each CPU. In struct cryptd_cpu_queue, a
struct crypto_queue holds all requests for the CPU, a struct
work_struct is used to run all requests for the CPU.

Testing based on dm-crypt on an Intel Core 2 E6400 (two cores) machine
shows 19.2% performance gain. The testing script is as follow:

-------------------- script begin ---------------------------
#!/bin/sh

dmc_create()
{
        # Create a crypt device using dmsetup
        dmsetup create $2 --table "0 `blockdev --getsize $1` crypt cbc(aes-asm)?cryptd?plain:plain babebabebabebabebabebabebabebabe 0 $1 0"
}

dmsetup remove crypt0
dmsetup remove crypt1

dd if=/dev/zero of=/dev/ram0 bs=1M count=4 >& /dev/null
dd if=/dev/zero of=/dev/ram1 bs=1M count=4 >& /dev/null

dmc_create /dev/ram0 crypt0
dmc_create /dev/ram1 crypt1

cat >tr.sh <<EOF
#!/bin/sh

for n in \$(seq 10); do
        dd if=/dev/dm-0 of=/dev/null >& /dev/null &
        dd if=/dev/dm-1 of=/dev/null >& /dev/null &
done
wait
EOF

for n in $(seq 10); do
        /usr/bin/time sh tr.sh
done
rm tr.sh
-------------------- script end   ---------------------------

The separator of dm-crypt parameter is changed from "-" to "?", because
"-" is used in some cipher driver name too, and cryptds need to specify
cipher driver name instead of cipher name.

The test result on an Intel Core2 E6400 (two cores) is as follow:

without patch:
-----------------wo begin --------------------------
0.04user 0.38system 0:00.39elapsed 107%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6566minor)pagefaults 0swaps
0.07user 0.35system 0:00.35elapsed 121%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6567minor)pagefaults 0swaps
0.06user 0.34system 0:00.30elapsed 135%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6562minor)pagefaults 0swaps
0.05user 0.37system 0:00.36elapsed 119%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6607minor)pagefaults 0swaps
0.06user 0.36system 0:00.35elapsed 120%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6562minor)pagefaults 0swaps
0.05user 0.37system 0:00.31elapsed 136%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6594minor)pagefaults 0swaps
0.04user 0.34system 0:00.30elapsed 126%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6597minor)pagefaults 0swaps
0.06user 0.32system 0:00.31elapsed 125%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6571minor)pagefaults 0swaps
0.06user 0.34system 0:00.31elapsed 134%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6581minor)pagefaults 0swaps
0.05user 0.38system 0:00.31elapsed 138%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6600minor)pagefaults 0swaps
-----------------wo end   --------------------------


with patch:
------------------w begin --------------------------
0.02user 0.31system 0:00.24elapsed 141%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6554minor)pagefaults 0swaps
0.05user 0.34system 0:00.31elapsed 127%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6606minor)pagefaults 0swaps
0.07user 0.33system 0:00.26elapsed 155%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6559minor)pagefaults 0swaps
0.07user 0.32system 0:00.26elapsed 151%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6562minor)pagefaults 0swaps
0.05user 0.34system 0:00.26elapsed 150%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6603minor)pagefaults 0swaps
0.03user 0.36system 0:00.31elapsed 124%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6562minor)pagefaults 0swaps
0.04user 0.35system 0:00.26elapsed 147%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6586minor)pagefaults 0swaps
0.03user 0.37system 0:00.27elapsed 146%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6562minor)pagefaults 0swaps
0.04user 0.36system 0:00.26elapsed 154%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6594minor)pagefaults 0swaps
0.04user 0.35system 0:00.26elapsed 154%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+6557minor)pagefaults 0swaps
------------------w end   --------------------------

The middle value of elapsed time is:
wo cryptwq: 0.31
w  cryptwq: 0.26

The performance gain is about (0.31-0.26)/0.26 = 0.192.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-19 14:42:19 +08:00
Huang Ying
25c38d3fb9 crypto: api - Use dedicated workqueue for crypto subsystem
Use dedicated workqueue for crypto subsystem

A dedicated workqueue named kcrypto_wq is created to be used by crypto
subsystem. The system shared keventd_wq is not suitable for
encryption/decryption, because of potential starvation problem.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-19 14:33:40 +08:00
Huang Ying
54b6a1bd53 crypto: aes-ni - Add support to Intel AES-NI instructions for x86_64 platform
Intel AES-NI is a new set of Single Instruction Multiple Data (SIMD)
instructions that are going to be introduced in the next generation of
Intel processor, as of 2009. These instructions enable fast and secure
data encryption and decryption, using the Advanced Encryption Standard
(AES), defined by FIPS Publication number 197.  The architecture
introduces six instructions that offer full hardware support for
AES. Four of them support high performance data encryption and
decryption, and the other two instructions support the AES key
expansion procedure.

The white paper can be downloaded from:

http://softwarecommunity.intel.com/isn/downloads/intelavx/AES-Instructions-Set_WP.pdf

AES may be used in soft_irq context, but MMX/SSE context can not be
touched safely in soft_irq context. So in_interrupt() is checked, if
in IRQ or soft_irq context, the general x86_64 implementation are used
instead.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-18 16:48:06 +08:00
Adrian-Ken Rueegsegger
bd9d20dba1 crypto: sha512 - Switch to shash
This patch changes sha512 and sha384 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:27 +11:00
Adrian-Ken Rueegsegger
19e2bf1467 crypto: michael_mic - Switch to shash
This patch changes michael_mic to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:24 +11:00
Adrian-Ken Rueegsegger
4946510baa crypto: wp512 - Switch to shash
This patch changes wp512, wp384 and wp256 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:22 +11:00
Adrian-Ken Rueegsegger
f63fbd3d50 crypto: tgr192 - Switch to shash
This patch changes tgr192, tgr160 and tgr128 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:21 +11:00
Adrian-Ken Rueegsegger
50e109b5b9 crypto: sha256 - Switch to shash
This patch changes sha256 and sha224 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:19 +11:00
Adrian-Ken Rueegsegger
14b75ba70d crypto: md5 - Switch to shash
This patch changes md5 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:18 +11:00
Adrian-Ken Rueegsegger
808a1763ce crypto: md4 - Switch to shash
This patch changes md4 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:16 +11:00
Adrian-Ken Rueegsegger
54ccb36776 crypto: sha1 - Switch to shash
This patch changes sha1 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:15 +11:00
Herbert Xu
3b8efb4c41 crypto: rmd320 - Switch to shash
This patch changes rmd320 to the new shash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:13 +11:00
Herbert Xu
d8a5e2e9f4 crypto: rmd256 - Switch to shash
This patch changes rmd256 to the new shash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:12 +11:00
Herbert Xu
e5835fba02 crypto: rmd160 - Switch to shash
This patch changes rmd160 to the new shash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:10 +11:00
Herbert Xu
7c4468bc01 crypto: rmd128 - Switch to shash
This patch changes rmd128 to the new shash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:09 +11:00
Herbert Xu
d35d2454ce crypto: null - Switch to shash
This patch changes digest_null to the new shash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:07 +11:00
Herbert Xu
69c35efcf1 libcrc32c: Move implementation to crypto crc32c
This patch swaps the role of libcrc32c and crc32c.  Previously
the implementation was in libcrc32c and crc32c was a wrapper.
Now the code is in crc32c and libcrc32c just calls the crypto
layer.

The reason for the change is to tap into the algorithm selection
capability of the crypto API so that optimised implementations
such as the one utilising Intel's CRC32C instruction can be
used where available.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:01:40 +11:00
Herbert Xu
6a0fcbb4da crypto: api - Disallow cryptomgr as a module if algorithms are built-in
If we have at least one algorithm built-in then it no longer makes
sense to have the testing framework, and hence cryptomgr to be a
module.  It should be either on or off, i.e., built-in or disabled.

This just happens to stop a potential runaway modprobe loop that
seems to trigger on at least one distro.

With fixes from Evgeniy Polyakov.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-10 23:29:44 +11:00
Herbert Xu
a0f000ec9b crypto: skcipher - Use RNG interface instead of get_random_bytes
This patch makes the IV generators use the new RNG interface so
that the user can pick an RNG other than the default get_random_bytes.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:50:06 +10:00
Neil Horman
17f0f4a47d crypto: rng - RNG interface and implementation
This patch adds a random number generator interface as well as a
cryptographic pseudo-random number generator based on AES.  It is
meant to be used in cases where a deterministic CPRNG is required.

One of the first applications will be as an input in the IPsec IV
generation process.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:50:04 +10:00
Neil Horman
ccb778e184 crypto: api - Add fips_enable flag
Add the ability to turn FIPS-compliant mode on or off at boot

In order to be FIPS compliant, several check may need to be preformed that may
be construed as unusefull in a non-compliant mode.  This patch allows us to set
a kernel flag incating that we are running in a fips-compliant mode from boot
up.  It also exports that mode information to user space via a sysctl
(/proc/sys/crypto/fips_enabled).

Tested successfully by me.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:50:02 +10:00
Herbert Xu
da7f033ddc crypto: cryptomgr - Add test infrastructure
This patch moves the newly created alg_test infrastructure into
cryptomgr.  This shall allow us to use it for testing at algorithm
registrations.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:49:55 +10:00
Austin Zhang
8cb51ba8e0 crypto: crc32c - Use Intel CRC32 instruction
From NHM processor onward, Intel processors can support hardware accelerated
CRC32c algorithm with the new CRC32 instruction in SSE 4.2 instruction set.
The patch detects the availability of the feature, and chooses the most proper
way to calculate CRC32c checksum.
Byte code instructions are used for compiler compatibility.
No MMX / XMM registers is involved in the implementation.

Signed-off-by: Austin Zhang <austin.zhang@intel.com>
Signed-off-by: Kent Liu <kent.liu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:49:50 +10:00
Adrian Bunk
b6d4434186 crypto: Kconfig - Replace leading spaces with tabs
Instead of tabs there were two spaces.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:48:53 +10:00
Herbert Xu
7890ea1f95 Revert crypto: prng - Deterministic CPRNG
This patch is clearly not ready yet for prime time.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-07-15 23:46:24 +08:00
Herbert Xu
5773a3e6e3 crypto: crc32c - Add ahash implementation
This patch reimplements crc32c using the ahash interface.  This
allows one tfm to be used by an unlimited number of users provided
that they all use the same key (which all current crc32c users do).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-07-10 20:35:18 +08:00
Neil Horman
b8454eebe3 crypto: prng - Deterministic CPRNG
This patch adds a cryptographic pseudo-random number generator
based on CTR(AES-128).  It is meant to be used in cases where a
deterministic CPRNG is required.

One of the first applications will be as an input in the IPsec IV
generation process.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-07-10 20:35:18 +08:00
Loc Ho
b8a28251c2 [CRYPTO] cryptd: Add asynchronous hash support
This patch adds asynchronous hash support to crypto daemon.

Signed-off-by: Loc Ho <lho@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-07-10 20:35:14 +08:00
Adrian-Ken Rueegsegger
534fe2c1c3 [CRYPTO] ripemd: Add Kconfig entries for extended RIPEMD hash algorithms
This patch adds Kconfig entries for RIPEMD-256 and RIPEMD-320.

Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-07-10 20:35:13 +08:00
Adrian-Ken Rueegsegger
82798f90fb [CRYPTO] ripemd: Add Kconfig entries for RIPEMD hash algorithms
This patch adds Kconfig entries for RIPEMD-128 and RIPEMD-160.

Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-07-10 20:35:10 +08:00
Sebastian Siewior
584fffc8b1 [CRYPTO] kconfig: Ordering cleanup
Ciphers, block modes, name it, are grouped together and sorted.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-21 10:19:34 +08:00
Sebastian Siewior
c3715cb90f [CRYPTO] api: Make the crypto subsystem fully modular
Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-21 10:19:23 +08:00
Kevin Coffman
76cb952179 [CRYPTO] cts: Add CTS mode required for Kerberos AES support
Implement CTS wrapper for CBC mode required for support of AES
encryption support for Kerberos (rfc3962).

Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-21 10:19:23 +08:00
Herbert Xu
3e16bfbaf3 [CRYPTO] authenc: Add missing Kconfig dependency on BLKCIPHER
The authenc algorithm requires BLKCIPHER to be present.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-02-23 11:13:00 +08:00
Adrian Bunk
c8620c2590 [CRYPTO] null: Add missing Kconfig dependency on BLKCIPHER
This patch fixes the following build error caused by commit 
3631c650c4:

<--  snip  -->

...
  LD      .tmp_vmlinux1
crypto/built-in.o: In function `skcipher_null_crypt':
crypto_null.c:(.text+0x3d14): undefined reference to `blkcipher_walk_virt'
crypto_null.c:(.text+0x3d14): relocation truncated to fit: R_MIPS_26 against `blkcipher_walk_virt'
crypto/built-in.o: In function `$L32':
crypto_null.c:(.text+0x3d54): undefined reference to `blkcipher_walk_done'
crypto_null.c:(.text+0x3d54): relocation truncated to fit: R_MIPS_26 against `blkcipher_walk_done'
crypto/built-in.o:(.data+0x2e8): undefined reference to `crypto_blkcipher_type'
make[1]: *** [.tmp_vmlinux1] Error 1

<--  snip  -->

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-02-18 09:00:05 +08:00
Frederik Deweerdt
242f1a3437 [CRYPTO] tcrypt: Add missing Kconfig dependency on BLKCIPHER
Building latest git fails with the following error:
	ERROR: "crypto_alloc_ablkcipher" [crypto/tcrypt.ko] undefined!
This appears to happen because CONFIG_CRYPTO_TEST is set while
CONFIG_CRYPTO_BLKCIPHER is not.
The following patch fixes the problem for me.

Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-02-15 19:19:33 +08:00
Tan Swee Heng
214dc54f6f [CRYPTO] salsa20-asm: Remove unnecessary dependency on CRYPTO_SALSA20
Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:58 +11:00
Sebastian Siewior
d1cda4e396 [CRYPTO] tcrypt: Add select of AEAD
ERROR: "crypto_aead_setauthsize" [crypto/tcrypt.ko] undefined!
 ERROR: "crypto_alloc_aead" [crypto/tcrypt.ko] undefined!

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:58 +11:00
Tan Swee Heng
9a7dafbba4 [CRYPTO] salsa20: Add x86-64 assembly version
This is the x86-64 version of the Salsa20 stream cipher algorithm. The
original assembly code came from
<http://cr.yp.to/snuffle/salsa20/amd64-3/salsa20.s>. It has been
reformatted for clarity.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:57 +11:00
Tan Swee Heng
974e4b752e [CRYPTO] salsa20_i586: Salsa20 stream cipher algorithm (i586 version)
This patch contains the salsa20-i586 implementation. The original
assembly code came from
<http://cr.yp.to/snuffle/salsa20/x86-pm/salsa20.s>. I have reformatted
it (added indents) so that it matches the other algorithms in
arch/x86/crypto.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:57 +11:00
Herbert Xu
4726204200 [CRYPTO] seqiv: Add select AEAD in Kconfig
Now that seqiv supports AEAD algorithms it needs to select the AEAD option.

Thanks to Erez Zadok for pointing out the problem.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:55 +11:00
Joy Latten
4a49b499df [CRYPTO] ccm: Added CCM mode
This patch adds Counter with CBC-MAC (CCM) support.
RFC 3610 and NIST Special Publication 800-38C were referenced.

Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:53 +11:00
Herbert Xu
0a270321db [CRYPTO] seqiv: Add Sequence Number IV Generator
This generator generates an IV based on a sequence number by xoring it
with a salt.  This algorithm is mainly useful for CTR and similar modes.

This patch also sets it as the default IV generator for ctr.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:48 +11:00
Herbert Xu
653ebd9c85 [CRYPTO] blkcipher: Merge ablkcipher and blkcipher into one option/module
With the impending addition of the givcipher type, both blkcipher and
ablkcipher algorithms will use it to create givcipher objects.  As such
it no longer makes sense to split the system between ablkcipher and
blkcipher.  In particular, both ablkcipher.c and blkcipher.c would need
to use the givcipher type which has to reside in ablkcipher.c since it
shares much code with it.

This patch merges the two Kconfig options as well as the modules into one.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:41 +11:00