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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>
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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>
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I've made a new implementation of DES to replace the old one in the kernel.
It provides faster encryption on all tested processors apart from the original
Pentium, and key setup is many times faster.
Speed relative to old kernel implementation
Processor des_setkey des_encrypt des3_ede_setkey des3_ede_encrypt
Pentium
120Mhz 6.8 0.82 7.2 0.86
Pentium III
1.266Ghz 5.6 1.19 5.8 1.34
Pentium M
1.3Ghz 5.7 1.15 6.0 1.31
Pentium 4
2.266Ghz 5.8 1.24 6.0 1.40
Pentium 4E
3Ghz 5.4 1.27 5.5 1.48
StrongARM 1110
206Mhz 4.3 1.03 4.4 1.14
Athlon XP
2Ghz 7.8 1.44 8.1 1.61
Athlon 64
2Ghz 7.8 1.34 8.3 1.49
Signed-off-by: Dag Arne Osvik <da@osvik.no>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The iv field in des_ctx/des3_ede_ctx/serpent_ctx has never been used.
This was noticed by Dag Arne Osvik.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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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!
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