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2010-11-13crypto: cast5 - simplify if-statementsNicolas Kaiser1-50/+24
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>
2010-02-16crypto: cast5 - Fix checkpatch errorsRichard Hartmann1-7/+7
Signed-off-by: Richard Hartmann <richih.mailinglist@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-21[CRYPTO] all: Clean up init()/fini()Kamalesh Babulal1-4/+4
On Thu, Mar 27, 2008 at 03:40:36PM +0100, Bodo Eggert wrote: > Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > This patch cleanups the crypto code, replaces the init() and fini() > > with the <algorithm name>_init/_fini > > This part ist OK. > > > or init/fini_<algorithm name> (if the > > <algorithm name>_init/_fini exist) > > Having init_foo and foo_init won't be a good thing, will it? I'd start > confusing them. > > What about foo_modinit instead? Thanks for the suggestion, the init() is replaced with <algorithm name>_mod_init () and fini () is replaced with <algorithm name>_mod_fini. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21[CRYPTO] api: Get rid of flags argument to setkeyHerbert Xu1-7/+1
Now that the tfm is passed directly to setkey instead of the ctx, we no longer need to pass the &tfm->crt_flags pointer. This patch also gets rid of a few unnecessary checks on the key length for ciphers as the cipher layer guarantees that the key length is within the bounds specified by the algorithm. Rather than testing dia_setkey every time, this patch does it only once during crypto_alloc_tfm. The redundant check from crypto_digest_setkey is also removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-06-26[CRYPTO] all: Pass tfm instead of ctx to algorithmsHerbert Xu1-7/+7
Up until now algorithms have been happy to get a context pointer since they know everything that's in the tfm already (e.g., alignment, block size). However, once we have parameterised algorithms, such information will be specific to each tfm. So the algorithm API needs to be changed to pass the tfm structure instead of the context pointer. This patch is basically a text substitution. The only tricky bit is the assembly routines that need to get the context pointer offset through asm-offsets.h. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-10[CRYPTO] cipher: Set alignmask for multi-byte loadsHerbert Xu1-0/+1
Many cipher implementations use 4-byte/8-byte loads/stores which require alignment on some architectures. This patch explicitly sets the alignment requirements for them. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-10[CRYPTO] Use standard byte order macros wherever possibleHerbert Xu1-27/+19
A lot of crypto code needs to read/write a 32-bit/64-bit words in a specific gender. Many of them open code them by reading/writing one byte at a time. This patch converts all the applicable usages over to use the standard byte order macros. This is based on a previous patch by Denis Vlasenko. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+848
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!