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2007-10-10[CRYPTO] sha: Load the SHA[1|256] module by an aliasSebastian Siewior1-142/+0
Loading the crypto algorithm by the alias instead of by module directly has the advantage that all possible implementations of this algorithm are loaded automatically and the crypto API can choose the best one depending on its priority. Additionally it ensures that the generic implementation as well as the HW driver (if available) is loaded in case the HW driver needs the generic version as fallback in corner cases. Also remove the probe for sha1 in padlock's init code. Quote from Herbert: The probe is actually pointless since we can always probe when the algorithm is actually used which does not lead to dead-locks like this. Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21[CRYPTO] sha: Add module aliases for sha1 / sha256Michal Ludvig1-0/+3
Crypto modules should be loadable by their .cra_driver_name, so we should make MODULE_ALIAS()es with these names. This patch adds aliases for SHA1 and SHA256 only as that's what we need for PadLock-SHA driver. Signed-off-by: Michal Ludvig <michal@logix.cz> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-06-26[CRYPTO] all: Pass tfm instead of ctx to algorithmsHerbert Xu1-8/+9
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>
2006-06-26[CRYPTO] digest: Add alignment handlingAtsushi Nemoto1-0/+1
Some hash modules load/store data words directly. The digest layer should pass properly aligned buffer to update()/final() method. This patch also add cra_alignmask to some hash modules. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09[CRYPTO] sha1: Fixed off-by-64 bug in sha1_updateHerbert Xu1-2/+2
After a partial update, the done pointer is off to the right by 64 bytes. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09[CRYPTO] sha1: Avoid shifting count left and rightNicolas Pitre1-4/+4
This patch avoids shifting the count left and right needlessly for each call to sha1_update(). It instead can be done only once at the end in sha1_final(). Keeping the previous test example (sha1_update() successively called with len=64), a 1.3% performance increase can be observed on i386, or 0.2% on ARM. The generated code is also smaller on ARM. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09[CRYPTO] sha1: Rename i/j to done/partialNicolas Pitre1-11/+12
This patch gives more descriptive names to the variables i and j. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09[CRYPTO] sha1: Avoid useless memcpy()Nicolas Pitre1-8/+17
The current code unconditionally copy the first block for every call to sha1_update(). This can be avoided if there is no pending partial block. This is always the case on the first call to sha1_update() (if the length is >= 64 of course. Furthermore, temp does need to be called if sha_transform is never invoked. Also consolidate the sha_transform calls into one to reduce code size. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09[CRYPTO] Use standard byte order macros wherever possibleHerbert Xu1-20/+8
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>